Juke F15 (2012 year). Service Repair Manual

DIAGNOSIS SYSTEM (ECM)

EC-81

< SYSTEM DESCRIPTION >

[MR16DDT ]

If it remains OFF, check MIL circuit. Refer to

EC-78, "DIAGNOSIS DESCRIPTION : System Readiness

Start engine and let it idle.
• For two trip detection logic diagnoses, ECM turns on MIL when it detects the same malfunction twice in

the two consecutive driving cycles.

• For 1st trip detection logic diagnoses, ECM turns on MIL when it detects a malfunction in one driving

cycle.

• ECM blinks MIL when it detects a malfunction that may damage the three way catalyst (misfire).

SELF-DIAGNOSTIC RESULTS MODE

Description

This function allows to indicate DTCs or 1st trip DTCs stored in ECM according to the number of times MIL is
blinking.

How to Set Self-diagnostic Results Mode

NOTE:
• It is better to count the time accurately with a clock.
• It is impossible to switch the diagnostic mode when an accelerator pedal position sensor circuit has a mal-

function.

• After ignition switch is turned off, ECM is always released from the “self-diagnostic results” mode.

Confirm that accelerator pedal is fully released, turn ignition switch ON and wait 3 seconds.

Repeat the following procedure quickly five times within 5 seconds.
• Fully depress the accelerator pedal.
• Fully release the accelerator pedal.

Wait 7 seconds, fully depress the accelerator pedal and keep it depressed for approx. 10 seconds until the
MIL starts blinking.
NOTE:
Do not release the accelerator pedal for 10 seconds if MIL starts blinking during this period. This blinking
is displaying SRT status and is continued for another 10 seconds.

Fully release the accelerator pedal.
ECM has entered to “Self-diagnostic results” mode.
NOTE:
Wait until the same DTC (or 1st trip DTC) appears to completely confirm all DTCs.

How to Read Self-diagnostic Results

The DTC and 1st trip DTC are indicated by the number of blinks of the MIL as shown below.
The DTC and 1st trip DTC are displayed at the same time. If the MIL does not illuminate in diagnostic test
mode I (Malfunction warning), all displayed items are 1st trip DTCs. If only one code is displayed when the MIL
illuminates in “malfunction warning” mode, it is a DTC; if two or more codes are displayed, they may be either

PBIB0092E

EC-82

< SYSTEM DESCRIPTION >

[MR16DDT ]

DIAGNOSIS SYSTEM (ECM)

DTCs or 1st trip DTCs. DTC No. is same as that of 1st trip DTC. These unidentified codes can be identified by
using the CONSULT-III or GST. A DTC will be used as an example for how to read a code.

A particular trouble code can be identified by the number of four-digit numeral flashes per the following.

The length of time the 1,000th-digit numeral flashes on and off is 1.2 seconds consisting of an ON (0.6-sec-
onds) - OFF (0.6-seconds) cycle.
The 100th-digit numeral and lower digit numerals consist of a 0.3-seconds ON and 0.3-seconds OFF cycle.
A change from one digit numeral to another occurs at an interval of 1.0-second OFF. In other words, the later
numeral appears on the display 1.3 seconds after the former numeral has disappeared.
A change from one trouble code to another occurs at an interval of 1.8-seconds OFF.
In this way, all the detected malfunctions are classified by their DTC numbers. The DTC 0000 refers to no mal-
function. Refer to

EC-108, "DTC Index"

How to Erase Self-diagnostic Results

By performing this procedure, ECM memory is erased and the following diagnostic information is erased as
well.
• Diagnostic trouble codes
• 1st trip diagnostic trouble codes
• Freeze frame data
• 1st trip freeze frame data
• System readiness test (SRT) codes
• Test values
NOTE:
Also, if a battery terminal is disconnected, ECM memory is erased and the diagnostic information as listed
above is erased. (The amount of time required for erasing may vary from a few seconds to several hours.)

Turn ignition switch OFF and wait at least 10 seconds.

Turn ignition switch ON.

Turn ignition switch OFF and wait at least 10 seconds.

PBIB3005E

Number

Flashes

DIAGNOSIS SYSTEM (ECM)

EC-83

< SYSTEM DESCRIPTION >

[MR16DDT ]

Turn ignition switch ON.

Set ECM in “self-diagnostic results” mode.

The diagnostic information has been erased from the backup memory in the ECM.
Fully depress the accelerator pedal and keep it depressed for more than 10 seconds.

Fully release the accelerator pedal, and confirm the DTC 0000 is displayed.

CONSULT-III Function

INFOID:0000000006416807

FUNCTION

*: The following emission-related diagnostic information is cleared when the ECM memory is erased.

• Diagnostic trouble codes

• 1st trip diagnostic trouble codes

• Freeze frame data

• 1st trip freeze frame data

• System readiness test (SRT) codes

• Test values

WORK SUPPORT MODE

Work Item

*: This function is not necessary in the usual service procedure.

SELF-DIAG RESULTS MODE

Self Diagnostic Item

Regarding items of DTC and 1st trip DTC, refer to

EC-108, "DTC Index"

How to Read DTC and 1st Trip DTC

DTCs and 1st trip DTCs related to the malfunction are displayed in “Self-diag results”.

Diagnostic test mode

Function

Work support

This mode enables a technician to adjust some devices faster and more accurately by following the in-
dications on the CONSULT-III unit.

Self-diagnostic results

Self-diagnostic results such as 1st trip DTC, DTCs and 1st trip freeze frame data or freeze frame data
can be read and erased quickly.*

Data monitor

Input/Output data in the ECM can be read.

Active test

Diagnostic Test Mode in which CONSULT-III drives some actuators apart from the ECMs and also shifts
some parameters in a specified range.

DTC & SRT confirmation

The status of system monitoring tests and the self-diagnosis status/result can be confirmed.

Function test

This mode is used to inform customers when their vehicle condition requires periodic maintenance.

ECU part number

ECM part number can be read.

Work item

Condition

Usage

IDLE AIR VOL LEARN

The idle air volume that keeps the engine within the specified
range is memorized in ECM.

When learning the idle air volume

FUEL PRESSURE RELEASE

Crank a few times after engine stalls.

When releasing fuel pressure from
fuel line

TARGET IGN TIM ADJ*

Idle condition

When adjusting target ignition tim-
ing

TARGET IDLE RPM ADJ*

Idle condition

When setting target idle speed

SELF-LEARNING CONT

The coefficient of self-learning control mixture ratio returns to
the original coefficient.

When clearing mixture ratio self-
learning value

CLSD THL POS LEARN

Ignition on and engine stopped.

When learning the throttle valve
closed position

G SENSOR CALIBRATION

• Park the vehicle on a flat road.
• Adjust pressure in all tires to the specified value.

Calibrates G sensor.

EC-84

< SYSTEM DESCRIPTION >

[MR16DDT ]

DIAGNOSIS SYSTEM (ECM)

• When ECM detects a 1st trip DTC, “1t” is displayed for “TIME”.
• When ECM has detected a current DTC, “0” is displayed for “TIME”.
• If “TIME” is neither “0” nor “1t”, the DTC occurred in the past and ECM shows the number of times the vehi-

cle has been driven since the last detection of the DTC.

How to Erase DTC and 1st Trip DTC

NOTE:
• If the ignition switch stays ON after repair work, be sure to turn ignition switch OFF once. Wait at least 10

seconds and then turn it ON (engine stopped) again.

• If the DTC is not for CVT related items (see

EC-108, "DTC Index"

), skip step 1.

Erase DTC in TCM. Refer to

TM-157, "Diagnosis Description"

Select “ENGINE” using CONSULT-III.

Select “SELF-DIAG RESULTS”.

Touch “ERASE”. (DTC in ECM will be erased.)

Freeze Frame Data and 1st Trip Freeze Frame Data

*: The items are the same as those of 1st trip freeze frame data.

DATA MONITOR MODE

Monitored Item

Freeze frame data

item*

Description

DIAG TROUBLE
CODE
[PXXXX]

The engine control component part/control system has a trouble code the is displayed as PXXXX. (Refer to

EC-108, "DTC Index"

CAL/LD VALUE [%]

The calculated load value at the moment a malfunction is detected is displayed.

COOLANT TEMP [

or [

The engine coolant temperature at the moment a malfunction is detected is displayed.

L-FUEL TRM-B1 [%]

• “Long-term fuel trim” at the moment a malfunction is detected is displayed.
• The long-term fuel trim indicates much more gradual feedback compensation to the base fuel schedule than

short-term fuel trim.

L-FUEL TRM-B2 [%]

S-FUEL TRM-B1 [%]

• “Short-term fuel trim” at the moment a malfunction is detected is displayed.
• The short-term fuel trim indicates dynamic or instantaneous feedback compensation to the base fuel sched-

ule.

S-FUEL TRM-B2 [%]

ENGINE SPEED [rpm]

The engine speed at the moment a malfunction is detected is displayed.

VEHICL SPEED
[km/h] or [mph]

The vehicle speed at the moment a malfunction is detected is displayed.

INT MANI PRES [kPa]

These items are displayed but are not applicable to this model.

ABSOL TH·P/S [%]

The throttle valve opening angle at the moment a malfunction is detected is displayed.

B/FUEL SCHDL
[msec]

The base fuel schedule at the moment a malfunction is detected is displayed.

INT/A TEMP SE [

or [

The intake air temperature at the moment a malfunction is detected is displayed.

FUEL SYS-B1

• “Fuel injection system status” at the moment a malfunction is detected is displayed.
• One of the following mode is displayed.

Mode2: Open loop due to detected system malfunction
Mode3: Open loop due to driving conditions (power enrichment, deceleration enleanment)
Mode4: Closed loop - using oxygen sensor(s) as feedback for fuel control
Mode5: Open loop - has not yet satisfied condition to go to closed loop

FUEL SYS-B2

COMBUST CONDI-
TION

These items are displayed but are not applicable to this model.

DIAGNOSIS SYSTEM (ECM)

EC-85

< SYSTEM DESCRIPTION >

[MR16DDT ]

: Applicable

Monitored item

Unit

Description

Remarks

ENG SPEED

rpm

Indicates the engine speed computed from the sig-
nal of the crankshaft position sensor (POS) and
camshaft position sensor (PHASE).

• Accuracy becomes poor if engine

speed drops below the idle rpm.

• If the signal is interrupted while the

engine is running, an abnormal value
may be indicated.

MAS A/F SE-B1

The signal voltage of the mass air flow sensor is dis-
played.

• When the engine is stopped, a certain

value is indicated.

• When engine is running specification

range is indicated in “SPEC”.

B/FUEL SCHDL

msec

“Base fuel schedule” indicates the fuel injection
pulse width programmed into ECM, prior to any
learned on board correction.

When engine is running specification
range is indicated in “SPEC”.

A/F ALPHA-B1

The mean value of the air-fuel ratio feedback cor-
rection factor per cycle is indicated.

• When the engine is stopped, a certain

value is indicated.

• When engine is running specification

range is indicated in “SPEC”.

• This data also includes the data for

the air-fuel ratio learning control.

COOLAN TEMP/S

C or

The engine coolant temperature (determined by the
signal voltage of the engine coolant temperature
sensor) is displayed.

When the engine coolant temperature
sensor is open or short-circuited, ECM
enters fail-safe mode. The engine cool-
ant temperature determined by the ECM
is displayed.

A/F SEN1 (B1)

The A/F signal computed from the input signal of
the air fuel ratio (A/F) sensor 1 is displayed.

HO2S2 (B1)

The signal voltage of the heated oxygen sensor 2 is
displayed.

HO2S2 MNTR(B1)

RICH/LEAN

• Display of heated oxygen sensor 2 signal:
- RICH: means the amount of oxygen after three

way catalyst is relatively small.

- LEAN: means the amount of oxygen after three

way catalyst is relatively large.

When the engine is stopped, a certain
value is indicated.

VHCL SPEED SE

km/h or mph

The vehicle speed computed from the vehicle
speed signal sent from combination meter is dis-
played.

BATTERY VOLT

The power supply voltage of ECM is displayed.

ACCEL SEN 1

The accelerator pedal position sensor signal volt-
age is displayed.

ACCEL SEN 2 signal is converted by
ECM internally. Thus, it differs from
ECM terminal voltage signal.

ACCEL SEN 2

TP SEN 1-B1

The throttle position sensor signal voltage is dis-
played.

TP SEN 2-B1 signal is converted by
ECM internally. Thus, it differs from
ECM terminal voltage signal.

TP SEN 2-B1

START SIGNAL

ON/OFF

Indicates start signal status [ON/OFF] computed by
the ECM according to the signals of engine speed
and battery voltage.

After starting the engine, [OFF] is dis-
played regardless of the starter signal.

CLSD THL POS

ON/OFF

Indicates idle position [ON/OFF] computed by ECM
according to the accelerator pedal position sensor
signal.

AIR COND SIG

ON/OFF

Indicates [ON/OFF] condition of the air conditioner
switch as determined by the air conditioner signal.

PW/ST SIGNAL

ON/OFF

[ON/OFF] condition of the power steering system
(determined by the signal sent from EPS control
unit) is indicated.

EC-86

< SYSTEM DESCRIPTION >

[MR16DDT ]

DIAGNOSIS SYSTEM (ECM)

LOAD SIGNAL

ON/OFF

• Indicates [ON/OFF] condition from the electrical

load signal.

- ON: Rear window defogger switch is ON and/or

lighting switch is in 2nd position.

- OFF: Both rear window defogger switch and light-

ing switch are OFF.

IGNITION SW

ON/OFF

Indicates [ON/OFF] condition from ignition switch
signal.

HEATER FAN SW

ON/OFF

Indicates [ON/OFF] condition from the heater fan
switch signal.

BRAKE SW

ON/OFF

Indicates [ON/OFF] condition from the stop lamp
switch signal.

IGN TIMING

BTDC

Indicates the ignition timing computed by ECM ac-
cording to the input signals.

When the engine is stopped, a certain
value is indicated.

COMBUSTION

—

These items are displayed but are not applicable to
this model.

CAL/LD VALUE

“Calculated load value” indicates the value of the
current airflow divided by peak airflow.

MASS AIRFLOW

g/s

Indicates the mass airflow computed by ECM ac-
cording to the signal voltage of the mass airflow
sensor.

PURG VOL C/V

• Indicates the EVAP canister purge volume con-

trol solenoid valve control value computed by the
ECM according to the input signals.

• The opening becomes larger as the value in-

creases.

INT/V TIM(B1)

Indicates [

CA] of intake camshaft advance angle.

EXH/V TIM B1

Indicates [

CA] of intake camshaft advance angle.

INT/V SOL(B1)

• The control value of the intake valve timing con-

trol solenoid valve (determined by ECM accord-
ing to the input signals) is indicated.

• The advance angle becomes larger as the value

increases.

AIR COND RLY

ON/OFF

The air conditioner relay control condition (deter-
mined by ECM according to the input signals) is in-
dicated.

FUEL PUMP RLY

ON/OFF

Indicates the fuel pump relay control condition de-
termined by ECM according to the input signals.

THRTL RELAY

ON/OFF

Indicates the throttle control motor relay control
condition determined by the ECM according to the
input signals.

HO2S2 HTR (B1)

ON/OFF

Indicates [ON/OFF] condition of heated oxygen
sensor 2 heater determined by ECM according to
the input signals.

ALT DUTY SIG

ON/OFF

• The control condition of the power generation

voltage variable control (determined by ECM ac-
cording to the input signals) is indicated.

- ON: Power generation voltage variable control is

active.

- OFF: Power generation

I/P PULLY SPD

rpm

Indicates the engine speed computed from the in-
put speed sensor signal.

VEHICLE SPEED

km/h or mph

The vehicle speed computed from the vehicle
speed signal sent from TCM is displayed.

Monitored item

Unit

Description

Remarks

DIAGNOSIS SYSTEM (ECM)

EC-87

< SYSTEM DESCRIPTION >

[MR16DDT ]

IDL A/V LEARN

YET/CMPLT

• Display the condition of Idle Air Volume Learning
- YET: Idle air volume learning has not been per-

formed yet.

- CMPLT: Idle air volume learning has already

been performed successfully.

TRVL AFTER MIL

km/h or mph

Distance traveled while MIL is activated.

ENG OIL TEMP

C or

The engine oil temperature (determined by the sig-
nal voltage of the engine oil temperature sensor) is
displayed.

A/F S1 HTR(B1)

• Air fuel ratio (A/F) sensor 1 heater control value

computed by ECM according to the input signals.

• The current flow to the heater becomes larger as

the value increases.

INT/A TEMP SE

C or

The intake air temperature (determined by the sig-
nal voltage of the intake air temperature sensor) is
indicated.

SET VHCL SPD

km/h or mph

The preset vehicle speed is displayed.

MAIN SW

ON/OFF

Indicates [ON/OFF] condition from ASCD MAIN
switch signal.

CANCEL SW

ON/OFF

Indicates [ON/OFF] condition from CANCEL switch
signal.

RESUME/ACC SW

ON/OFF

Indicates [ON/OFF] condition from RES/+ switch
signal.

SET SW

ON/OFF

Indicates [ON/OFF] condition from SET/

−

switch

signal.

BRAKE SW1

ON/OFF

Indicates [ON/OFF] condition from brake pedal po-
sition switch signal.

BRAKE SW2

ON/OFF

Indicates [ON/OFF] condition of stop lamp switch
signal.

VHCL SPD CUT

NON/CUT

• Indicates the vehicle cruise condition.
- NON: Vehicle speed is maintained at the ASCD

set speed.

- CUT: Vehicle speed decreased to excessively

low compared with the ASCD set speed, and
ASCD operation is cut off.

LO SPEED CUT

NON/CUT

• Indicates the vehicle cruise condition.
- NON: Vehicle speed is maintained at the ASCD

set speed.

- CUT: Vehicle speed decreased to excessively

low, and ASCD operation is cut off.

AT OD MONITOR

ON/OFF

Indicates [ON/OFF] condition of CVT O/D accord-
ing to the input signal from the TCM.

For M/T models, always “OFF” is dis-
played.

AT OD CANCEL

ON/OFF

Indicates [ON/OFF] condition of CVT O/D cancel
request signal.

For M/T models, always “OFF” is dis-
played.

CRUISE LAMP

ON/OFF

Indicates [ON/OFF] condition of CRUISE lamp de-
termined by the ECM according to the input signals.

SET LAMP

ON/OFF

Indicates [ON/OFF] condition of SET lamp deter-
mined by the ECM according to the input signals.

FUN DUTY

Indicates a command value for cooling fan. The val-
ue is calculated by ECM based on input signals.

ALT DUTY

Indicates the duty ratio of the power generation
command value. The ratio is calculated by ECM
based on the battery current sensor signal.

BAT CUR SEN

The signal voltage of battery current sensor is dis-
played.

Monitored item

Unit

Description

Remarks

EC-88

< SYSTEM DESCRIPTION >

[MR16DDT ]

DIAGNOSIS SYSTEM (ECM)

*: The item is indicated, but not used.

NOTE:

Any monitored item that does not match the vehicle being diagnosed is deleted from the display automatically.

ACTIVE TEST MODE

Test Item

A/F ADJ-B1

—

Indicates the correction of a factor stored in ECM.
The factor is calculated from the difference between
the target air-fuel ratio stored in ECM and the air-
fuel ratio calculated from A/F sensor 1 signal.

P/N POSI SW

ON/OFF

Indicates [ON/OFF] condition from the park/neutral
position (PNP) signal.

AC PRESS SEN

The signal voltage from the refrigerant pressure
sensor is displayed.

FUEL PRES SEN

MPa

Indicates the fuel rail pressure computed by ECM
according to the input signals.

TURBO BST SEN

The turbocharger boost sensor signal voltage is dis-
played.

FUEL INJ TIM

deg

Indicates the fuel injection timing computed by ECM
according to the input signals.

FUEL INJ B1

msec

ECM-calculated injection pulse width of the fuel in-
jector on the Bank 1 side.

BAT TEMP SEN

The signal voltage from the battery temperature
sensor is displayed.

A/F SEN1

DIAG2(B1)

INCMP/CM-

PLT

• Indicates DTC P0133 self-diagnosis condition.
- INCMP: Self-diagnosis is incomplete.
- CMPLT: Self-diagnosis is complete.

HO2 S2 DIAG2(B1)

INCMP/CM-

PLT

• Indicates DTC P0139 self-diagnosis (slow re-

sponse) condition.

- INCMP: Self-diagnosis is incomplete.
- CMPLT: Self-diagnosis is complete.

H/P FUEL PUMP
DEG

deg

Displays ECM-calculated fuel discharge position of
the high pressure fuel pump.

FUEL PRES SEN V

The signal voltage of FRP sensor is displayed.

EOP SENSOR

The signal voltage of EOP sensor is displayed.

SL TRG VHCL SPD

km/h or mph

The preset speed limiter vehicle speed is displays.

• A certain constant value is displayed

while mode other than speed limiter
control being activated.

• When the speed limiter is released by

other method than the main switch,
the vehicle speed indicated during the
standby mode is the one that is previ-
ously set before releasing the speed
limiter.

SL SET LAMP

ON/OFF

Indicates [ON/OFF] condition of speed limiter SET
indicator determined by the ECM according to the
input signals.

SL LIMIT LAMP

ON/OFF

Indicates [ON/OFF] condition of speed limiter LIMIT
indicator determined by the ECM according to the
input signals.

SL MAIN SW

ON/OFF

Indicates [ON/OFF] condition from speed limiter
MAIN switch signals.

KICKDOWN POS

ON/OFF

Indicates [ON/OFF] condition of kickdown deter-
mined by the ECM according to the input signals.

Monitored item

Unit

Description

Remarks

DIAGNOSIS SYSTEM (ECM)

EC-89

< SYSTEM DESCRIPTION >

[MR16DDT ]

*: Leaving cooling fan OFF with CONSULT-III while engine is running may cause the engine to overheat.

DTC & SRT CONFIRMATION MODE

SRT STATUS Mode

For details, refer to

EC-78, "DIAGNOSIS DESCRIPTION : System Readiness Test (SRT) Code"

SRT WORK SUPPORT Mode

This mode enables a technician to drive a vehicle to set the SRT while monitoring the SRT status.

DTC WORK SUPPORT Mode

Test item

Condition

Judgement

Check item (Remedy)

ENG COOLANT
TEMP

• Engine: Return to the original

trouble condition

• Change the engine coolant tem-

perature using CONSULT-III.

If trouble symptom disappears, see
CHECK ITEM.

• Harness and connectors
• Engine coolant temperature sen-

sor

• Fuel injector

FUEL INJECTION

• Engine: Return to the original

trouble condition

• Change the amount of fuel injec-

tion using CONSULT-III.

If trouble symptom disappears, see
CHECK ITEM.

• Harness and connectors
• Fuel injector
• Air fuel ratio (A/F) sensor 1

PURG VOL CONT/V

• Engine: After warming up, run

engine at 1,500 rpm.

• Change the EVAP canister

purge volume control solenoid
valve opening percent using
CONSULT-III.

Engine speed changes according
to the opening percent.

• Harness and connectors
• Solenoid valve

FUEL PUMP RELAY

• Ignition switch: ON (Engine

stopped)

• Turn the fuel pump relay “ON”

and “OFF” using CONSULT-III
and listen to operating sound.

Fuel pump relay makes the operat-
ing sound.

• Harness and connectors
• Fuel pump relay

IGNITION TIMING

• Engine: Return to the original

trouble condition

• Timing light: Set
• Retard the ignition timing using

CONSULT-III.

If trouble symptom disappears, see
CHECK ITEM.

Perform Idle Air Volume Learning.

FAN DUTY CON-

TROL

• Ignition switch: ON
• Change duty ratio using CON-

SULT-III.

Cooling fan speed changes.

• Harness and connectors
• Cooling fan motor
• Cooling fan relay
• Cooling fan control module
• IPDM E/R

ALTERNATOR DUTY

• Ignition switch: ON
• Change duty ratio using CON-

SULT-III.

Battery voltage changes.

• Harness and connectors
• Alternator
• IPDM E/R

POWER BALANCE

• Engine: After warming up, idle

the engine.

• A/C switch OFF
• Shift lever: P or N (CVT), Neutral

(M/T)

• Cut off each fuel injector signal

one at a time using CONSULT-
III.

Engine runs rough or dies.

• Harness and connectors
• Compression
• Fuel injector
• Power transistor
• Spark plug
• Ignition coil

Test mode

Test item

Corresponding DTC No.

Reference page

A/F SEN1

A/F SEN1 (B1) P1278/P1279

P0133

EC-215

A/F SEN1 (B1) P1276

P0130

EC-205

HO2S2

HO2S2 (B1) P1146

P0138

EC-226

HO2S2 (B1) P1147

P0137

EC-220

HO2S2 (B1) P0139

P0139

EC-233

EC-90

< ECU DIAGNOSIS INFORMATION >

[MR16DDT ]

ECM

ECU DIAGNOSIS INFORMATION

ECM

Reference Value

INFOID:0000000006417044

VALUES ON THE DIAGNOSIS TOOL

Remarks:

Specification data are reference values.

Specification data are output/input values which are detected or supplied by the ECM at the connector.

* Specification data may not be directly related to their components signals/values/operations.
I.e. Adjust ignition timing with a timing light before monitoring IGN TIMING, because the monitor may show the specification data in spite of the

ignition timing not being adjusted to the specification data. this IGN TIMING monitors the data calculated by the ECM according to the signals
input from the camshaft position sensor and other ignition timing related sensors.

Monitor Item

Condition

Values/Status

ENG SPEED

Run engine and compare CONSULT-III value with the tachometer indication.

Almost the same speed as
the tachometer indication.

MAS A/F SE-B1

See

EC-148, "Diagnosis Procedure"

B/FUEL SCHDL

See

EC-148, "Diagnosis Procedure"

A/F ALPHA-B1

See

EC-148, "Diagnosis Procedure"

COOLAN TEMP/S

Engine: After warming up

More than 70

C (158

A/F SEN1 (B1)

Engine: After warming up

Maintaining engine speed at 2,000 rpm

Fluctuates around 1.5 V

HO2S2 (B1)

• Revving engine from idle up to 3,000 rpm quickly after the following conditions

are met.

- Engine: After warming up
- After keeping engine speed between 3,500 and 4,000 rpm for 1 minute and at

idle for 1 minute under no load

0 - 0.3 V

←→

Approx. 0.6 -

1.0 V

HO2S2 MNTR(B1)

• Revving engine from idle up to 3,000 rpm quickly after the following conditions

are met.

- Engine: After warming up
- After keeping engine speed between 3,500 and 4,000 rpm for 1 minute and at

idle for 1 minute under no load

LEAN

←→

RICH

VHCL SPEED SE

Turn drive wheels and compare CONSULT-III value with the speedometer indi-
cation.

Almost the same speed as
speedometer indication

BATTERY VOLT

Ignition switch: ON (Engine stopped)

11 - 14 V

ACCEL SEN 1

Ignition switch: ON
(Engine stopped)

Accelerator pedal: Fully released

0.6 - 0.9 V

Accelerator pedal: Fully depressed

4.0 - 4.8 V

ACCEL SEN 2

Ignition switch: ON
(Engine stopped)

Accelerator pedal: Fully released

0.3 - 4.7 V

Accelerator pedal: Fully depressed

1.95 - 2.4 V

TP SEN 1-B1

• Ignition switch: ON

(Engine stopped)

• Selector lever: D (CVT), 1st (M/T)

Accelerator pedal: Fully released

More than 0.36 V

Accelerator pedal: Fully depressed

Less than 4.75 V

TP SEN 2-B1*

• Ignition switch: ON

(Engine stopped)

• Selector lever: D (CVT), 1st (M/T)

Accelerator pedal: Fully released

More than 0.36 V

Accelerator pedal: Fully depressed

Less than 4.75 V

START SIGNAL

Ignition switch: ON

→

START

→

OFF

→

OFF

CLSD THL POS

Ignition switch: ON
(Engine stopped)

Accelerator pedal: Fully released

Accelerator pedal: Slightly depressed

OFF

AIR COND SIG

Engine: After warming up, idle the
engine

Air conditioner switch: OFF

OFF

Air conditioner switch: ON
(Compressor operates.)

PW/ST SIGNAL

Engine: After warming up, idle the
engine

Steering wheel: Not being turned

OFF

Steering wheel: Being turned

ECM

EC-91

< ECU DIAGNOSIS INFORMATION >

[MR16DDT ]

LOAD SIGNAL

Ignition switch: ON

Rear window defogger switch: ON
and/or Lighting switch: 2nd position

Rear window defogger switch and lighting
switch: OFF

OFF

IGNITION SW

Ignition switch: ON

→

OFF

→

OFF

→

HEATER FAN SW

Engine: After warming up, idle the
engine

Heater fan switch: ON

Heater fan switch: OFF

OFF

BRAKE SW

Ignition switch: ON

Brake pedal: Fully released

OFF

Brake pedal: Slightly depressed

IGN TIMING

• Engine: After warming up
• Selector lever: P or N (CVT),

Neutral (M/T)

• Air conditioner switch: OFF
• No load

Idle

- 20

BTDC

2,000 rpm

- 45

BTDC

COMBUSTION

—

These items are displayed
but are not applicable to this
model.

CAL/LD VALUE

• Engine: After warming up
• Selector lever: P or N (CVT),

Neutral (M/T)

• Air conditioner switch: OFF
• No load

Idle

5 - 35%

2,500 rpm

5 - 35%

MASS AIRFLOW

• Engine: After warming up
• Selector lever: P or N (CVT),

Neutral (M/T)

• Air conditioner switch: OFF
• No load

Idle

1.0 - 4.0 g/s

2,500 rpm

2.0 - 10.0 g/s

PURG VOL C/V

• Engine: After warming up
• Selector lever: P or N (CVT),

Neutral (M/T)

• Air conditioner switch: OFF
• No load

Idle
(Accelerator pedal: Not depressed even
slightly, after engine starting.)

2,000 rpm

20% - 90%

INT/V TIM(B1)

• Engine: After warming up
• Selector lever: P or N (CVT),

Neutral (M/T)

• Air conditioner switch: OFF
• No load

Idle

−

- 5

2,000 rpm

Approx. 0

- 20

EXH/V TIM B1

• Engine: After warming up
• Selector lever: P or N (CVT),

Neutral (M/T)

• Air conditioner switch: OFF
• No load

Idle

−

- 5

Around 2,500 rpm while the engine speed
is rising

Approx. 0

- 30

INT/V SOL(B1)

• Engine: After warming up
• Selector lever: P or N (CVT),

Neutral (M/T)

• Air conditioner switch: OFF
• No load

Idle

2,000 rpm

Approx. 0% - 60%

AIR COND RLY

Engine: After warming up, idle the
engine

Air conditioner switch: OFF

OFF

Air conditioner switch: ON
(Compressor operates)

FUEL PUMP RLY

• For 1 seconds after turning ignition switch: ON
• Engine running or cranking

Except above

OFF

THRTL RELAY

Ignition switch: ON

Monitor Item

Condition

Values/Status

EC-92

< ECU DIAGNOSIS INFORMATION >

[MR16DDT ]

ECM

HO2S2 HTR (B1)

• Engine speed: Below 3,600 rpm after the following conditions are met.
- Engine: After warming up
- Keeping the engine speed between 3,500 and 4,000 rpm for 1 minute and at

idle for 1 minute under no load

Engine speed: Above 3,600 rpm

OFF

ALT DUTY SIG

Power generation voltage variable control: Operating

Power generation voltage variable control: Not operating

OFF

I/P PULLY SPD

Vehicle speed: More than 20 km/h (12 MPH)

Almost the same speed as
the tachometer indication

VEHICLE SPEED

Turn drive wheels and compare CONSULT-III value with the speedometer indi-
cation.

Almost the same speed as
the speedometer indication

IDL A/V LEARN

Engine: running

Idle air volume learning has not been per-
formed yet.

YET

Idle air volume learning has already been
performed successfully.

CMPLT

TRVL AFTER MIL

Ignition switch: ON

Vehicle has traveled after MIL has illumi-
nated.

0 - 65,535 km (0 - 40,723

miles)

ENG OIL TEMP

Engine: After warming up

More than 70

C (158

A/F S1 HTR(B1)

Engine: After warming up, idle the engine
(More than 140 seconds after starting engine)

4 - 100%

INT/A TEMP SE

Ignition switch: ON

Indicates intake air tempera-
ture

SET VHCL SPD

Engine: Running

ASCD: Operating

The preset vehicle speed is
displayed

MAIN SW

Ignition switch: ON

MAIN switch: Pressed

MAIN switch: Released

OFF

CANCEL SW

Ignition switch: ON

CANCEL switch: Pressed

CANCEL switch: Released

OFF

RESUME/ACC SW

Ignition switch: ON

RES/+ switch: Pressed

RES/+ switch: Released

OFF

SET SW

Ignition switch: ON

SET/

−

switch: Pressed

SET/

−

switch: Released

OFF

BRAKE SW1
(Brake pedal posi-
tion switch)

Ignition switch: ON

Brake pedal: Fully released

Brake pedal: Slightly depressed

OFF

BRAKE SW2
(Stop lamp switch)

Ignition switch: ON

Brake pedal: Fully released

OFF

Brake pedal: Slightly depressed

VHCL SPD CUT

Ignition switch: ON

NON

LO SPEED CUT

Ignition switch: ON

NON

AT OD MONITOR

Ignition switch: ON

OFF

AT OD CANCEL

Ignition switch: ON

OFF

CRUISE LAMP

Ignition switch: ON

MAIN switch: Pressed at the 1st time

→

at the 2nd time

→

OFF

SET LAMP

• MAIN switch: ON
• When vehicle speed is between

40 km/h (25 MPH) and 144 km/h
(89 MPH)

ASCD: Operating

ASCD: Not operating

OFF

FAN DUTY

Engine: Running

0 - 100%

ALT DUTY

Engine: Idle

0 - 80%

Monitor Item

Condition

Values/Status

ECM

EC-93

< ECU DIAGNOSIS INFORMATION >

[MR16DDT ]

BAT CUR SEN

• Engine speed: Idle

• Battery: Fully charged

• Selector lever: P or N (CVT), Neutral (M/T)
• Air conditioner switch: OFF
• No load

Approx. 2,600 - 3,500 mV

A/F ADJ-B1

Engine: Running

−

0.330 - 0.330

P/N POSI SW

Ignition switch: ON

Selector lever: P or N (CVT), Neutral (M/
T)

Selector lever: Except above

OFF

AC PRESS SEN

• Engine: Idle
• Both A/C switch and blower fan switch: ON (Compressor operates)

1.0 - 4.0 V

FUEL PRES SEN

• Engine: After warming up
• Selector lever: P or N (CVT),

Neutral (M/T)

• Air conditioner switch: OFF
• No load

Idle

Approx. 2.74 MPa

2,000 rpm

Approx. 3.0 MPa

TURBO BST SEN

• Engine speed: Idle
• Selector lever: D (CVT), Neutral

(M/T)

• Fuel: Premium gasoline

• The accelerator pedal is depressed to

a half stroke position or more.

• The readings of boost in the multi-func-

tion meter are the same as the ambient
pressure or more.

• Engine speed: More than 3,000 rpm

3.07 - 3.15 V

• Engine speed: Idle
• Selector lever: D (CVT), Neutral

(M/T)

• Fuel: Regular gasoline

• The accelerator pedal is depressed to

a half stroke position or more.

• The readings of boost in the multi-func-

tion meter are the same as the ambient
pressure or more.

• Engine speed: More than 3,000 rpm

2.91 - 2.99 V

FUEL INJ TIM

• Engine: After warming up
• Selector lever: P or N (CVT),

Neutral (M/T)

• Air conditioner switch: OFF
• No load

Idle

Approx. 16 deg

2,000 rpm

Approx.

−

170 deg

FUEL INJ B1

• Engine: After warming up
• Selector lever: P or N (CVT),

Neutral (M/T)

• Air conditioner switch: OFF
• No load

Idle

Approx. 1.4 msec

2,000 rpm

Approx. 1.0 msec

BAT TEMP SEN

• Engine: After warming up
• Selector lever: P or N (CVT),

Neutral (M/T)

• Air conditioner switch: OFF
• No load

Idle

Indicates the temperature
around the battery.

A/F SEN1
DIAG2(B1)

NOTE:
The item is indicated, but not used.

HO2 S2 DIAG2(B1)

NOTE:
The item is indicated, but not used.

H/P FUEL PUMP
DEG

• Engine: After warming up
• Selector lever: P or N (CVT),

Neutral (M/T)

• Air conditioner switch: OFF
• No load

Idle

Approx. 211.0 deg

2,000 rpm

Approx. 206.0 deg

FUEL PRES SEN V

• Engine: After warming up
• Selector lever: P or N (CVT),

Neutral (M/T)

• Air conditioner switch: OFF
• No load

Idle

Approx. 980 - 1,200 mV

Revving engine from idle to 4,000 rpm
quickly

Approx. 1,100 - 2,900 mV

Monitor Item

Condition

Values/Status

EC-94

< ECU DIAGNOSIS INFORMATION >

[MR16DDT ]

ECM

*1: Accelerator pedal position sensor 2 signal and throttle position sensor 2 signal are converted by ECM internally. Thus, they differ
from ECM terminals voltage signal.

*2: Before measuring the terminal voltage, confirm that the battery is fully charged. Refer to

PG-111, "How to Handle Battery"

TERMINAL LAYOUT

PHYSICAL VALUES

NOTE:
• ECM is located in the engine room left side near battery.
• Connect a break-out box (EG17550000) and harness adapter (EG17550400) between the ECM and ECM

harness connector.

- Use extreme care not to 2 pins at one time.
- Data is for comparison and may not be exact.
• Specification data are reference values and are measured between each terminal and ground.
• Pulse signal is measured by CONSULT-III.

EOP SENSOR

• Engine: After warming up
• Selector lever: P or N (CVT),

Neutral (M/T)

• Air conditioner switch: OFF
• No load

Idle

Approx. 1450 mV

2,000 rpm

Approx. 2850 mV

SL TRG VHCL SPD

Ignition switch: ON

Speed limiter operating

The preset vehicle speed is
displayed

SL SET LAMP

• Ignition switch: ON
• Speed limiter MAIN switch: ON

Speed limiter: Not operating

OFF

Speed limiter: Operating

SL LIMIT LAMP

Ignition switch: ON

Speed limiter MAIN switch: Pressed at
the 1st time

→

at the 2nd time

→

OFF

SL MAIN SW

Ignition switch: ON

Speed limiter MAIN switch: Pressed

Speed limiter MAIN switch: Released

OFF

KICKDOWN POS

Ignition switch: ON

Accelerator pedal: Fully released

OFF

Accelerator pedal: Fully depressed

Monitor Item

Condition

Values/Status

JSBIA0505ZZ

Terminal No.

(Wire color)

Description

Condition

Value

(Approx.)

−

Signal name

Input/

Output

(B)

—

ECM ground
(Fuel injector)

—

(B)

—

ECM ground
(Fuel injector)

—

ECM

EC-95

< ECU DIAGNOSIS INFORMATION >

[MR16DDT ]

(G)

(B)

Fuel injector No. 1, 4 (HI)

Output

[Engine is running]
• Warm-up condition
• Idle speed

NOTE:
The pulse cycle changes depending
on rpm at idle

BATTERY VOLTAGE

(11 - 14 V)

(Y)

Fuel injector No. 2, 3 (HI)

[Engine is running]
• Engine speed is 2,000 rpm

BATTERY VOLTAGE

(11 - 14 V)

(R)

(B)

Fuel injector No. 1 (LO)

Output

[Engine is running]
• Warm-up condition
• Idle speed

NOTE:
The pulse cycle changes depending
on rpm at idle

BATTERY VOLTAGE

(11 - 14 V)

(BR)

Fuel injector No. 2 (LO)

(W)

Fuel injector No. 3 (LO)

[Engine is running]
• Engine speed is 2,000 rpm

BATTERY VOLTAGE

(11 - 14 V)

(R)

Fuel injector No. 4 (LO)

(W)

—

Sensor ground
(Mass air flow sensor, in-
take air temperature
sensor1)

—

(LG)

—

Sensor ground
(Engine coolant tempera-
ture sensor)

—

(P)

—

Sensor ground
(Engine oil temperature
sensor)

—

(BR)

—

Sensor ground
(Refrigerant pressure
sensor)

—

Terminal No.

(Wire color)

Description

Condition

Value

(Approx.)

−

Signal name

Input/

Output

JPBIA4718ZZ

JPBIA4719ZZ

JPBIA4720ZZ

JPBIA4721ZZ

EC-96

< ECU DIAGNOSIS INFORMATION >

[MR16DDT ]

ECM

(G)

(W)

Mass air flow sensor

Input

[Ignition switch: ON]
• Engine stopped

0.4 V

[Engine is running]
• Warm-up condition
• Idle speed

0.9 - 1.2 V

[Engine is running]
• Warm-up condition
• Engine is revving from idle to about

4,000 rpm

0.9 - 1.2 to 2.4 V (Check for linear

voltage rise in response to en-

gine being increased to about

4,000 rpm.)

(L)

(LG)

Engine coolant tempera-
ture sensor

Input

[Engine is running]

0 - 4.8 V

Output voltage varies with engine

coolant temperature.

(Y)

(W)

Intake air temperature
sensor 1

Input

[Engine is running]

0 - 4.8 V

Output voltage varies with intake

air temperature.

(GR)

(SB)

Fuel rail pressure sensor

Input

[Engine is running]
• Warm-up condition
• Idle speed

0.8 V

[Engine is running]
• Warm-up condition
• Revving engine from idle to 4,000

rpm quickly

0.8 - 2.5 V

(P)

(BR)

Refrigerant pressure sen-
sor

Input

[Engine is running]
• Warm-up condition
• Both A/C switch and blower fan mo-

tor switch: ON (Compressor oper-
ates)

1.0 - 4.0 V

(W)

127

(B/Y)

A/F sensor 1

Input

[Ignition switch: ON]

2.2 V

(Y)

(P)

Engine oil temperature
sensor

Input

[Engine is running]

0 - 4.8 V

Output voltage varies with engine

oil temperature.

(W)

(BR)

Sensor power supply
(Refrigerant pressure
sensor)

—

[Ignition switch: ON]

5.0 V

(B)

127

(B/Y)

A/F sensor 1

Input

[Engine is running]
• Engine speed is 2,000 rpm

1.8 V

Output voltage varies with air fuel

ratio.

(W)

(R)

Heated oxygen sensor 2

Input

[Engine is running]
• Revving engine from idle to 3,000

rpm quickly after the following condi-
tions are met

- Engine: after warming up
- Keeping the engine speed between

3,500 and 4,000 rpm for 1 minute
and at idle for 1 minute under no
load

0 - 1.0 V

(R)

—

Sensor ground
(Heated oxygen sensor 2)

—

(—)

—

Sensor ground
(Knock sensor)

—

(W)

(—)

Knock sensor

Input

[Engine is running]
• Idle speed

2.5 V

Terminal No.

(Wire color)

Description

Condition

Value

(Approx.)

−

Signal name

Input/

Output

Juke F15 (2012 year). Service Repair Manual - part 117