Juke F15 (2012 year). Service Repair Manual - part 138

IGNITION SIGNAL

EC-417

< DTC/CIRCUIT DIAGNOSIS >

[MR16DDT ]

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>> Replace malfunctioning ignition coil with power transistor. Refer to 

EM-53, "Exploded View"

.

2.

CHECK IGNITION COIL WITH POWER TRANSISTOR-II

CAUTION:

Do the following procedure in the place where ventilation is good without the combustible.
1.

Turn ignition switch OFF.

2.

Reconnect all harness connectors disconnected.

3.

Remove fuel pump fuse in IPDM E/R to release fuel pressure.
NOTE:
Do not use CONSULT-III to release fuel pressure, or fuel pressure applies again during the following pro-
cedure.

4.

Start engine.

5.

After engine stalls, crank it two or three times to release all fuel pressure.

6.

Turn ignition switch OFF.

7.

Remove all ignition coil harness connectors to avoid the electrical discharge from the ignition coils. Refer
to 

EM-53, "Exploded View"

.

8.

Remove ignition coil and spark plug of the cylinder to be checked. Refer to .0

EM-53, "Exploded View"

9.

Crank engine for 5 seconds or more to remove combustion gas in the cylinder.

10. Connect spark plug and harness connector to ignition coil.
11. Fix ignition coil using a rope etc. with gap of 13 - 17 mm (0.52 -

0.66 in) between the edge of the spark plug and grounded metal
portion as shown in the figure.

12. Crank engine for about three seconds, and check whether spark

is generated between the spark plug and the grounded metal
portion.

CAUTION:

• During the operation, always stay 0.5 cm (19.7 in) away

from the spark plug and the ignition coil. Be careful not to
get an electrical shock while checking, because the elec-
trical discharge voltage becomes 20 kV or more.

• It might cause to damage the ignition coil if the gap of more than 17 mm (0.66 in) is taken.
NOTE:
When the gap is less than 13 mm (0.52 in), the spark might be generated even if the coil is mal-
functioning.

Is the inspection result normal?

YES

>> INSPECTION END

NO

>> Replace malfunctioning ignition coil with power transistor. Refer to 

EM-53, "Exploded View"

.

Component Inspection (Condenser)

INFOID:0000000006547247

1.

CHECK CONDENSER

1.

Turn ignition switch OFF.

2.

Disconnect condenser harness connector.

3.

Check resistance between condenser terminals as per the following.

Is the inspection result normal?

YES

>> INSPECTION END

NO

>> Replace Condenser.

Spark should be generated.

JMBIA0066GB

Condenser

Resistance

+

−

Terminal

1

2

Above 1 M

Ω

 [at 25

°

C (77

°

F)]

EC-418

< DTC/CIRCUIT DIAGNOSIS >

[MR16DDT ]

ELECTRICAL LOAD SIGNAL

ELECTRICAL LOAD SIGNAL

Description

INFOID:0000000006547232

The electrical load signal (Headlamp switch signal, rear window defogger switch signal, etc.) is transferred via
the CAN communication line.

Component Function Check

INFOID:0000000006547233

1.

CHECK REAR WINDOW DEFOGGER SWITCH FUNCTION

With CONSULT-III

1.

Turn ignition switch ON.

2.

Select “DATA MONITOR” mode of “ENGINE” using CONSULT-III.

3.

Select “LOAD SIGNAL” and check indication as per the following conditions.

Is the inspection result normal?

YES

>> GO TO 2.

NO

>> Proceed to 

EC-418, "Diagnosis Procedure"

.

2.

CHECK LIGHTING SWITCH FUNCTION

With CONSULT-III

Check “LOAD SIGNAL” indication as per the following conditions.

Is the inspection result normal?

YES

>> GO TO 3.

NO

>> Proceed to 

EC-418, "Diagnosis Procedure"

.

3.

CHECK HEATER FAN CONTROL SWITCH FUNCTION

With CONSULT-III

Select “HEATER FAN SW” and check indication as per the following conditions.

Is the inspection result normal?

YES

>> INSPECTION END

NO

>> Proceed to 

EC-418, "Diagnosis Procedure"

.

Diagnosis Procedure

INFOID:0000000006547234

1.

INSPECTION START

Confirm the malfunctioning circuit (rear window defogger, headlamp or heater fan). Refer to 

EC-418, "Compo-

nent Function Check"

.

Which circuit is related to the incident?

Rear window defogger>>GO TO 2.
Headlamp>>GO TO 3.
Heater fan>>GO TO 4.

Monitor item

Condition

Indication

LOAD SIGNAL

Rear window defogger switch

ON

ON

OFF

OFF

Monitor item

Condition

Indication

LOAD SIGNAL

Lighting switch

ON at 2nd posi-
tion

ON

OFF

OFF

Monitor item

Condition

Indication

HEATER FAN 
SW

Heater fan control switch

ON

ON

OFF

OFF

ELECTRICAL LOAD SIGNAL

EC-419

< DTC/CIRCUIT DIAGNOSIS >

[MR16DDT ]

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2.

CHECK REAR WINDOW DEFOGGER SYSTEM

Check the rear window defogger system. Refer to 

DEF-25, "Work Flow"

.

>> INSPECTION END

3.

CHECK HEADLAMP SYSTEM

Check the headlamp system. Refer to 

EXL-43, "Work Flow"

.

>> INSPECTION END

4.

CHECK HEATER FAN CONTROL SYSTEM

Check the heater fan control system. refer to 

HA-72, "Work Flow"

.

>> INSPECTION END

EC-420

< DTC/CIRCUIT DIAGNOSIS >

[MR16DDT ]

COOLING FAN

COOLING FAN

Component Function Check

INFOID:0000000006547229

1.

CHECK COOLING FAN FUNCTION

With CONSULT-III

1.

Turn ignition switch ON.

2.

Perform “FAN DUTY CONTROL” in “ACTIVE TEST” mode of “ENGINE” using CONSULT-III.

3.

Check that cooling fan speed varies according to the percentage.

Without CONSULT-III

1.

Activate IPDM E/R auto active test and check cooling fan motors operation. Refer to 

PCS-12, "Diagnosis

Description"

.

2.

Check that cooling fan operates.

Is the inspection result normal?

YES

>> INSPECTION END

NO

>> Proceed to 

EC-420, "Diagnosis Procedure"

.

Diagnosis Procedure

INFOID:0000000006547230

1.

CHECK COOLING FAN CONTROL MODULE POWER SUPPLY

1.

Turn ignition switch OFF.

2.

Disconnect cooling fan control nodule harness connector.

3.

Turn ignition switch ON.

4.

Check the voltage between cooling fan control nodule harness connector and ground.

Is the inspection result normal?

YES

>> GO TO 5.

NO

>> GO TO 2.

2.

CHECK COOLING FAN CONTROL MODULE POWER SUPPLY CIRCUIT

1.

Turn ignition switch OFF.

2.

Disconnect cooling fan relay harness connector.

3.

Check the continuity between cooling fan control nodule harness connector and cooling fan relay harness
connector.

4.

Also check harness for short to ground.

Is the inspection result normal?

YES

>> GO TO 3.

NO

>> Repair or replace error-detected parts.

3.

CHECK COOLING FAN RELAY POWER SUPPLY CIRCUIT

1.

Disconnect IPDM E/R harness connector.

2.

Check the continuity between cooling fan relay harness connector and IPDM E/R harness connector.

+

−

Voltage

Cooling fan control module

Connector

Terminal

E203

3

Ground

Battery voltage

+

−

Continuity

Cooling fan control module

Cooling fan relay

Connector

Terminal

Connector

Terminal

E203

3

E204

3

Existed

COOLING FAN

EC-421

< DTC/CIRCUIT DIAGNOSIS >

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3.

Also check harness for short to ground.

Is the inspection result normal?

YES

>> GO TO 4.

NO

>> Repair or replace error-detected parts.

4.

CHECK COOLING FAN RELAY

Check cooling fan relay. Refer to 

EC-422, "Component Inspection (Cooling Fan Relay)"

.

Is the inspection result normal?

YES

>> Perform the trouble diagnosis for power supply circuit.

NO

>> Replace cooling fan relay. Refer to 

PG-7, "Standardized Relay"

.

5.

CHECK COOLING FAN CONTROL MODULE GROUND CIRCUIT

1.

Turn ignition switch OFF.

2.

Check the continuity between cooling fan control nodule harness connector and ground.

3.

Also check harness for short to power.

Is the inspection result normal?

YES

>> GO TO 6.

NO

>> Repair or replace error-detected parts.

6.

CHECK COOLING FAN CONTROL SIGNAL CIRCUIT

1.

Disconnect IPDM E/R harness connector.

2.

Check the continuity between cooling fan control nodule harness connector and IPDM E/R harness con-
nector.

3.

Also check harness for short to ground and to power.

Is the inspection result normal?

YES

>> GO TO 7.

NO

>> Repair or replace error-detected parts.

7.

CHECK COOLING FAN CONTROL MODULE OUTPUT SIGNAL CIRCUIT

1.

Reconnect all harness connectors disconnected.

2.

Disconnect cooling fan control module harness connector.

3.

Turn ignition switch ON.

4.

Check the voltage between cooling fan control module terminals and ground.

+

−

Continuity

Cooling fan relay

IPDM E/R

Connector

Terminal

Connector

Terminal

E204

1

E17

67

Existed

+

−

Continuity

Cooling fan control module

Connector

Terminal

E203

1

Ground

Existed

+

−

Continuity

Cooling fan control module

IPDM E/R

Connector

Terminal

Connector

Terminal

E203

2

E17

72

Existed

EC-422

< DTC/CIRCUIT DIAGNOSIS >

[MR16DDT ]

COOLING FAN

Is the inspection result normal?

YES

>> GO TO 8.

NO

>> Repair or replace error-detected parts.

8.

CHECK COOLING FAN MOTORS -1 AND -2

Check the cooling fan motor. Refer to 

EC-422, "Component Inspection (Cooling Fan Motor)"

.

YES

>> Check intermittent incident. Refer to 

GI-42, "Intermittent Incident"

.

NO

>> Replace cooling motor. Refer to 

CO-20, "Exploded View"

.

Component Inspection (Cooling Fan Motor)

INFOID:0000000006647296

1.

CHECK COOLING FAN MOTOR

1.

Turn ignition switch OFF.

2.

Disconnect cooling fan control module harness connector.

3.

Supply cooling fan control module harness connector terminals with battery voltage as per the following,
and check operation.

Is the inspection result normal?

YES

>> INSPECTION END

NO

>> Replace malfunctioning cooling fan motor. Refer to 

CO-20, "Exploded View"

.

Component Inspection (Cooling Fan Relay)

INFOID:0000000006647297

1.

CHECK COOLING FAN RELAY

1.

Turn ignition switch OFF.

2.

Remove cooling fan relay.

3.

Check the continuity between cooling fan relay terminals under
the following conditions.

Is the inspection result normal?

YES

>> INSPECTION END

NO

>> Replace cooling fan relay. Refer to 

PG-7, "Standardized Relay"

.

+

−

Voltage

Cooling fan control module

Connector

Terminal

E301

4

Ground

Battery voltage

E302

6

Cooling fan control module

Operation

Motor

Connector

Terminal

(+)

(

−

)

1

E301

4

5

Cooling fan operates.

2

E302

6

7

Cooling fan relay

Conditions

Continuity

+

−

Terminal

3

5

12 V direct current supply between 
terminals 1 and 2

Existed

No current supply

Not existed

MBIB0057E

REFRIGERANT PRESSURE SENSOR

EC-423

< DTC/CIRCUIT DIAGNOSIS >

[MR16DDT ]

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REFRIGERANT PRESSURE SENSOR

Component Function Check

INFOID:0000000006547259

1.

CHECK REFRIGERANT PRESSURE SENSOR OVERALL FUNCTION

1.

Start engine and warm it up to normal operating temperature.

2.

Turn A/C switch and blower fan switch ON.

3.

Check the voltage between ECM harness connector and ground.

Is the inspection result normal?

YES

>> INSPECTION END

NO

>> Proceed to 

EC-423, "Diagnosis Procedure"

.

Diagnosis Procedure

INFOID:0000000006547260

1.

CHECK REFRIGERANT PRESSURE SENSOR POWER SUPPLY

1.

Turn ignition OFF.

2.

Disconnect refrigerant pressure sensor harness connector.

3.

Turn ignition switch ON.

4.

Check the voltage between refrigerant pressure sensor harness connector and ground.

Is the inspection result normal?

YES

>> GO TO 3.

NO

>> GO TO 2.

2.

CHECK REFRIGERANT PRESSURE SENSOR POWER SUPPLY CIRCUIT

1.

Turn ignition switch OFF.

2.

Disconnect ECM harness connector.

3.

Check the continuity between refrigerant pressure sensor harness connector and ECM harness connec-
tor.

4.

Also check harness for short to ground.

Is the inspection result normal?

YES

>> Perform the trouble diagnosis for power supply circuit.

NO

>> Repair or replace error-detected parts.

3.

CHECK REFRIGERANT PRESSURE SENSOR GROUND

1.

Turn ignition switch OFF.

2.

Disconnect ECM harness connector.

3.

Check the continuity between refrigerant pressure sensor harness connector and ECM harness connec-
tor.

ECM

Voltage

Connector

+

−

Terminal

F25

19

12

1.0 - 4.0V

+

−

Voltage

(Approx.)

Refrigerant pressure sensor

Connector

Terminal

E49

3

Ground

5 V

+

−

Continuity

Refrigerant pressure sensor

ECM

Connector

Terminal

Connector

Terminal

E49

3

F25

23

Existed

EC-424

< DTC/CIRCUIT DIAGNOSIS >

[MR16DDT ]

REFRIGERANT PRESSURE SENSOR

4.

Also check harness for short to power.

Is the inspection result normal?

YES

>> GO TO 4.

NO

>> Repair or replace error-detected parts.

4.

CHECK REFRIGERANT PRESSURE SENSOR INPUT SIGNAL CIRCUIT

1.

Check the continuity between ECM harness connector and refrigerant pressure sensor harness connec-
tor.

2.

Also check harness for short to ground and to power.

Is the inspection result normal?

YES

>> GO TO 5.

NO

>> Repair or replace error-detected parts.

5.

CHECK INTERMITTENT INCIDENT.

Perform 

GI-42, "Intermittent Incident"

.

Is the inspection result normal?

YES

>> Replace refrigerant pressure sensor. Refer to 

HAC-96, "Exploded View"

.

NO

>> Repair or replace error-detected parts. 

+

−

Continuity

Refrigerant pressure sensor

ECM

Connector

Terminal

Connector

Terminal

E49

1

F25

12

Existed

+

−

Continuity

Refrigerant pressure sensor

ECM

Connector

Terminal

Connector

Terminal

E49

2

F25

19

Existed

BRAKE PEDAL POSITION SWITCH

EC-425

< DTC/CIRCUIT DIAGNOSIS >

[MR16DDT ]

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BRAKE PEDAL POSITION SWITCH

Component Function Check

INFOID:0000000006599041

1.

CHECK BRAKE PEDAL POSITION SWITCH FUNCTION

With CONSULT-III

1.

Turn ignition switch ON.

2.

Select “BRAKE SW1” in “DATA MONITOR” mode of “ENGINE” using CONSULT-III.

3.

Check “BRAKE SW1” indication as per the following conditions.

Without CONSULT-III

1.

Turn ignition switch ON.

2.

Check the voltage between ECM harness connector terminals as per the following.

Is the inspection result normal?

YES

>> INSPECTION END

NO

>> Proceed to 

EC-425, "Diagnosis Procedure"

.

Diagnosis Procedure

INFOID:0000000006599042

1.

CHECK BRAKE PEDAL POSITION SWITCH POWER SUPPLY

1.

Turn ignition switch OFF.

2.

Disconnect brake pedal position switch harness connector.

3.

Turn ignition switch ON.

4.

Check the voltage between brake pedal position switch harness connector and ground.

*1: LHD models or RHD with CVT models

*2: RHD with M/T models

Is the inspection result normal?

YES

>> GO TO 2.

NO

>> Perform the trouble diagnosis for power supply circuit.

2.

CHECK BRAKE PEDAL POSITION SWITCH INPUT SIGNAL CIRCUIT

1.

Turn ignition switch OFF.

2.

Disconnect ECM harness connector.

3.

Check the continuity between brake pedal position switch harness connector and ECM harness connec-
tor.

Monitor item

Condition

Indication

BRAKE SW1

Brake pedal

Slightly depressed

OFF

Fully released

ON

ECM

Condition

Voltage

(Approx.)

Connector

+

–

Terminal

E18

116

127

Brake pedal

Slightly depressed

0 V

Fully released

Battery voltage

+

−

Voltage

Brake pedal position switch

Connector

Terminal

E112

*1

M202

*2

1

Ground

Battery voltage

EC-426

< DTC/CIRCUIT DIAGNOSIS >

[MR16DDT ]

BRAKE PEDAL POSITION SWITCH

*1: LHD models or RHD with CVT models

*2: RHD with M/T models

4.

Also check harness for short to ground and to power.

Is the inspection result normal?

YES

>> GO TO 3.

NO

>> Repair or replace error-detected parts.

3.

CHECK BRAKE PEDAL POSITION SWITCH

Check the brake pedal position switch. Refer to 

EC-426, "Component Inspection (Brake Pedal Position

Switch)"

Is the inspection result normal?

YES

>> Check intermittent incident. Refer to 

GI-42, "Intermittent Incident"

.

NO

>> Replace brake pedal position switch. Refer to 

BR-20, "Exploded View"

 (LHD) or 

BR-88,

"Exploded View"

 (RHD).

Component Inspection (Brake Pedal Position Switch)

INFOID:0000000006635035

1.

CHECK BRAKE PEDAL POSITION SWITCH-I

1.

Turn ignition switch OFF.

2.

Disconnect brake pedal position harness connector.

3.

Check the continuity between brake pedal position switch terminals as per the following conditions.

Is the inspection result normal?

YES

>> INSPECTION END

NO

>> GO TO 2.

2.

CHECK BRAKE PEDAL POSITION SWITCH-II

1.

Adjust brake pedal position switch installation. Refer to 

BR-9, "Inspection and Adjustment"

 (LHD) or 

BR-

77, "Inspection and Adjustment"

 (RHD).

2.

Check the continuity between brake pedal position switch terminals as per the following conditions.

Is the inspection result normal?

YES

>> INSPECTION END

NO

>> Replace brake pedal position switch. Refer to 

BR-20, "Exploded View"

 (LHD) or 

BR-88,

"Exploded View"

 (RHD).

+

−

Continuity

Brake pedal position switch

ECM

Connector

Terminal

Connector

Terminal

E112

*1

M202

*2

2

E18

116

Existed

Brake pedal position switch

Condition

Continuity

+

-

Terminals

1

 2

Brake pedal

Fully released

Existed

Slightly de-
pressed

Not existed

Brake pedal position switch

Condition

Continuity

+

-

Terminals

1

 2

Brake pedal

Fully released

Existed

Slightly de-
pressed

Not existed

CLUTCH PEDAL POSITION SWITCH

EC-427

< DTC/CIRCUIT DIAGNOSIS >

[MR16DDT ]

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CLUTCH PEDAL POSITION SWITCH

Component Function Check

INFOID:0000000006635930

1.

CHECK FOR CLUTCH PEDAL POSITION SWITCH FUNCTION

1.

Turn ignition switch ON.

2.

Check the voltage between ECM harness connector and ground.

Is the inspection result normal?

YES

>> INSPECTION END.

NO

>> Proceed to 

EC-427, "Diagnosis Procedure"

.

Diagnosis Procedure

INFOID:0000000006635931

1.

CHECK CLUTCH PEDAL POSITION INPUT SIGNAL

1.

Turn ignition switch OFF.

2.

Disconnect clutch pedal position switch harness connector.

3.

Turn ignition switch ON.

4.

Check the voltage between clutch pedal position switch harness connector and ground.

With Intelligent key system

*1: LHD models

*2: RHD models

Without Intelligent key system

*1: LHD models

*2: RHD models

Is the inspection result normal?

YES

>> GO TO 3.

NO

>> GO TO 2.

2.

CHECK CLUTCH PEDAL POSITION SWITCH INPUT SIGNAL CIRCUIT

1.

Turn ignition switch OFF.

2.

Disconnect ECM harness connectors.

3.

Check the continuity between clutch pedal position switch harness connector and ECM harness connec-
tor.

ECM

Condition

Voltage

(Approx.)

Connector

+

−

Terminal

E18

108

127

Clutch pedal

Slightly depressed

Battery voltage

Fully released

0V

+

−

Voltage

Clutch pedal position switch

Connector

Terminal

E62

*1

M207

*2

3

Ground

Battery voltage

+

−

Voltage

Clutch pedal position switch

Connector

Terminal

E61

*1

M206

*2

1

Ground

Battery voltage

EC-428

< DTC/CIRCUIT DIAGNOSIS >

[MR16DDT ]

CLUTCH PEDAL POSITION SWITCH

With Intelligent key system

*1: LHD models

*2: RHD models

Without Intelligent key system

*1: LHD models

*2: RHD models

4.

Also check harness for short to ground and to power. 

Is the inspection result normal?

YES

>> Perform the trouble diagnosis for power supply circuit.

NO

>> Repair or replace error-detected parts.

3.

CHECK CLUTCH PEDAL POSITION SWITCH GROUND CIRCUIT

1.

Turn ignition switch OFF.

2.

Disconnect ECM harness connectors.

3.

Check the continuity between clutch pedal position switch harness connector and ground

With Intelligent key system

*1: LHD models

*2: RHD models

Without Intelligent key system

*1: LHD models

*2: RHD models

4.

Also check harness for short to power. 

Is the inspection result normal?

YES

>> GO TO 4.

NO

>> Repair or replace error-detected parts.

4.

CHECK CLUTCH PEDAL POSITION SWITCH

Check the clutch pedal position switch. Refer to 

EC-429, "Component Inspection"

.

Is the inspection result normal?

+

−

Continuity

Clutch pedal position switch

ECM

Connector

Terminal

Connector

Terminal

E62

*1

M207

*2

3

E18

108

Existed

+

−

Continuity

Clutch pedal position switch

ECM

Connector

Terminal

Connector

Terminal

E61

*1

M206

*2

1

E18

108

Existed

+

−

Continuity

Clutch pedal position switch

Connector

Terminal

E62

*1

M207

*2

3

Ground

Existed

+

−

Continuity

Clutch pedal position switch

Connector

Terminal

E61

*1

M206

*2

1

Ground

Existed

CLUTCH PEDAL POSITION SWITCH

EC-429

< DTC/CIRCUIT DIAGNOSIS >

[MR16DDT ]

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YES

>> Check intermittent incident. Refer to 

GI-42, "Intermittent Incident"

.

NO

>> Replace clutch pedal position switch. Refer to 

CL-16, "LHD : Exploded View"

 (LHD models) or 

CL-

18, "RHD : Exploded View"

 (RHD models).

Component Inspection

INFOID:0000000006635932

1.

CHECK CLUTCH PEDAL POSITION SWITCH-I

1.

Turn ignition switch OFF.

2.

Disconnect clutch pedal position switch harness connector.

3.

Check the continuity between clutch pedal position switch terminals as per the following conditions.

With Intelligent Key system

Without Intelligent Key system

Is the inspection result normal?

YES

>> INSPECTION END

NO

>> GO TO 2.

2.

CHECK CLUTCH PEDAL POSITION SWITCH-II

1.

Adjust clutch pedal position switch installation. Refer to 

CL-17, "LHD : Inspection and Adjustment"

 (LHD

models) or 

CL-19, "RHD : Inspection and Adjustment"

 (RHD models).

2.

Check the continuity between clutch pedal position switch terminals as per the following conditions.

With Intelligent Key system

Without Intelligent Key system

Is the inspection result normal?

YES

>> INSPECTION END

NO

>> Replace clutch pedal position switch. Refer to 

CL-16, "LHD : Exploded View"

 (LHD models) or 

CL-

18, "RHD : Exploded View"

 (RHD models).

Clutch pedal position switch

Condition

Continuity

+

−

Terminal

3

4

Clutch pedal

Fully released

Existed

Slightly depressed

Not existed

Clutch pedal position switch

Condition

Continuity

+

−

Terminal

1

2

Clutch pedal

Fully released

Existed

Slightly depressed

Not existed

Clutch pedal position switch

Condition

Continuity

+

−

Terminal

3

4

Clutch pedal

Fully released

Existed

Slightly depressed

Not existed

Clutch pedal position switch

Condition

Continuity

+

−

Terminal

1

2

Clutch pedal

Fully released

Existed

Slightly depressed

Not existed

EC-430

< DTC/CIRCUIT DIAGNOSIS >

[MR16DDT ]

ASCD MAIN SWITCH

ASCD MAIN SWITCH

Component Function Check

INFOID:0000000006548495

1.

CHECK ASCD MAIN SWITCH FUNCTION

With CONSULT-III

1.

Turn ignition switch ON.

2.

Select “MAIN SW” in “DATA MONITOR” mode of “ENGINE” using CONSULT-III.

3.

Check “MAIN SW” indication as per the following condition.

 Without CONSULT-III

1.

Turn ignition switch ON.

2.

Check the voltage between ECM harness connector and ground as per the following conditions.

Is the inspection result normal?

YES

>> INSPECTION END

NO

>> Proceed to 

EC-430, "Diagnosis Procedure"

.

Diagnosis Procedure

INFOID:0000000006548496

1.

CHECK ASCD MAIN SWITCH POWER SUPPLY

1.

Turn ignition switch OFF.

2.

Disconnect combination switch (spiral cable) harness connector.

3.

Turn ignition switch ON.

4.

Check the voltage between combination switch harness connector and ground.

Is the inspection result normal?

YES

>> GO TO 2.

NO

>> Perform the trouble diagnosis for power supply circuit.

2.

CHECK ASCD MAIN SWITCH INPUT SIGNAL CIRCUIT

1.

Turn ignition switch OFF.

2.

Disconnect ECM harness connector.

3.

Check the continuity between ECM harness connector and combination switch harness connector.

Monitor item

Condition

Indication

MAIN SW

ASCD MAIN switch

Pressed

ON

Released

OFF

ECM

Condition

Voltage

(Approx.)

Connector

+

–

Terminal

E18

98

127

ASCD MAIN 
switch

Pressed

Battery voltage

Released

0 V

+

−

Voltage

Combination switch

Connector

Terminal

M32

21

Ground

Battery voltage

+

−

Continuity

ECM

Combination switch

Connector

Terminal

Connector

Terminal

E18

98

M303

37

Existed

ASCD MAIN SWITCH

EC-431

< DTC/CIRCUIT DIAGNOSIS >

[MR16DDT ]

C

D

E

F

G

H

I

J

K

L

M

A

EC

N

P

O

4.

Also check harness for short to ground and to power.

Is the inspection result normal?

YES

>> GO TO 3.

NO

>> Repair or replace error-detected parts.

3.

CHECK ASCD STEERING SWITCH

Check the ASCD steering switch. Refer to 

EC-431, "Component Inspection"

.

Is the inspection result normal?

YES

>> Check intermittent incident. Refer to 

GI-42, "Intermittent Incident"

.

NO

>> Replace ASCD steering switch. Refer to 

ST-9, "Exploded View"

.

Component Inspection

INFOID:0000000006635928

1.

CHECK ASCD STEERING SWITCH-I

1.

Disconnect combination switch (spiral cable) harness connector.

2.

Check the continuity between combination switch harness connector terminals as per the following condi-
tions.

Is the inspection result normal?

YES

>> INSPECTION END

NO

>> Replace ASCD steering switch. Refer to 

ST-9, "Exploded View"

.

2.

CHECK ASCD STEERING SWITCH

1.

Disconnect combination switch (spiral cable) harness connector.

2.

Check the resistance between combination switch harness connector terminals as per the following condi-
tions.

Is the inspection result normal?

YES

>> INSPECTION END

NO

>> Replace ASCD steering switch. Refer to 

ST-9, "Exploded View"

.

Combination switch

(Spiral cable)

Condition

Continuity

Connector

+

−

Terminals

M303

35

36

Speed limiter 
MAIN switch

Pressed

Existed

Released

Not existed

37

ASCD MAIN 
switch

Pressed

Existed

Released

Not existed

Combination switch

(Spiral cable)

Condition

Resistance

(Approx.)

Connector

+

−

Terminals

M302

13

16

CANCEL switch: Pressed

250 

Ω

SET/

−

 switch: Pressed

660 

Ω

RES/+ switch: Pressed

1,480 

Ω

All ASCD steering switches: Released

4,000 

Ω

EC-432

< DTC/CIRCUIT DIAGNOSIS >

[MR16DDT ]

SPEED LIMITER MAIN SWITCH

SPEED LIMITER MAIN SWITCH 

Component Function Check

INFOID:0000000006548492

1.

CHECK SPEED LIMITER MAIN SWITCH FUNCTION

With CONSULT-III

1.

Turn ignition switch ON.

2.

Select “SL MAIN SW” in “DATA MONITOR” mode of “ENGINE” using CONSULT-III.

3.

Check “SL MAIN SW” indication as per the following condition.

Without CONSULT-III

1.

Turn ignition switch ON.

2.

Check the voltage between ECM harness connector and ground as per the following conditions.

Is the inspection result normal?

YES

>> INSPECTION END

NO

>> Proceed to 

EC-432, "Diagnosis Procedure"

.

Diagnosis Procedure

INFOID:0000000006548493

1.

CHECK SPEED LIMITER MAIN SWITCH POWER SUPPLY

1.

Turn ignition switch OFF.

2.

Disconnect combination switch (spiral cable) harness connector.

3.

Turn ignition switch ON.

4.

Check the voltage between combination switch harness connector and ground.

Is the inspection result normal?

YES

>> GO TO 2.

NO

>> Perform the trouble diagnosis for power supply circuit.

2.

CHECK SPEED LIMITER MAIN SWITCH INPUT SIGNAL CIRCUIT

1.

Turn ignition switch OFF.

2.

Disconnect ECM harness connector.

3.

Check the continuity between ECM harness connector and combination switch harness connector.

Monitor item

Condition

Indication

SL MAIN SW

Speed limiter MAIN switch

Pressed

ON

Released

OFF

ECM

Condition

Voltage

(Approx.)

Connector

+

–

Terminal

E18

107

127

Speed limiter 
MAIN switch

Pressed

Battery voltage

Released

0 V

+

−

Voltage

Combination switch

Connector

Terminal

M32

21

Ground

Battery voltage

+

−

Continuity

ECM

Combination switch

Connector

Terminal

Connector

Terminal

E18

107

M303

36

Existed