Nissan Note E12. Manual - part 645

TM-138

< DTC/CIRCUIT DIAGNOSIS >

[CVT: RE0F11A]

U0300 CAN COMMUNICATION DATA

U0300 CAN COMMUNICATION DATA

Description

INFOID:0000000009019911

CAN (Controller Area Network) is a serial communication line for real-time application. It is an on-vehicle mul-

tiplex communication line with high data communication speed and excellent malfunction detection ability.

Many electronic control units are equipped onto a vehicle, and each control unit shares information and links

with other control units during operation (not independently). In CAN communication, control units are con-

nected with 2 communication lines (CAN-H line, CAN-L line) allowing a high rate of information transmission

with less wiring. Each control unit transmits/receives data but selectively reads required data only.

DTC Logic

INFOID:0000000009019912

DTC DETECTION LOGIC

DTC CONFIRMATION PROCEDURE

1.

PREPARATION BEFORE WORK

If another “DTC CONFIRMATION PROCEDURE” occurs just before, turn ignition switch OFF and wait for at

least 10 seconds, then perform the next test. 

>> GO TO 2.

2.

CHECK DTC DETECTION

With CONSULT

1. Start the engine and wait for 5 seconds or more.

2. Check the DTC.
Is “U0300” detected?

YES

>> Go to 

TM-138, "Diagnosis Procedure"

.

NO

>> INSPECTION END

Diagnosis Procedure

INFOID:0000000009019913

1.

CONTROL UNIT CHECK 

Check the number of control units replaced before “U0300” is detected. 
Is one control unit replaced? 

YES

>> The specification of the control unit replaced may be incorrect. Check the part number and the

specification. 

NO

>> GO TO 2.

2.

CONTROL UNIT CHECK

With CONSULT

1. Remove one of the control unit replaced. 

2. Assemble the old control unit before replacement. 

3. Turn ignition switch ON, and wait for 2 seconds or more.

4. Select “Self Diagnostic Results” in “TRANSMISSION”.
Is “U0300”detected?

YES

>> Turn OFF the ignition switch and check other control units in the same manner. 

NO

>> The specification of the control unit removed may be incorrect. Check the part number and the

specification. 

DTC

Trouble diagnosis name

DTC detection condition

Possible causes

U0300

Internal Control Module Soft-
ware Incompatibility

When the ignition switch is ON, the data 
length transmitted from each control unit is 
shorter than the specified length and the sta-
tus continues for 2 seconds or more. 

Control unit other than TCM

U1000 CAN COMM CIRCUIT

TM-139

< DTC/CIRCUIT DIAGNOSIS >

[CVT: RE0F11A]

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U1000 CAN COMM CIRCUIT

Description

INFOID:0000000009019914

CAN (Controller Area Network) is a serial communication line for real-time application. It is an on-vehicle mul-

tiplex communication line with high data communication speed and excellent malfunction detection ability.

Many electronic control units are equipped onto a vehicle, and each control unit shares information and links

with other control units during operation (not independently). In CAN communication, control units are con-

nected with 2 communication lines (CAN-H line, CAN-L line) allowing a high rate of information transmission

with less wiring. Each control unit transmits/receives data but selectively reads required data only.

DTC Logic

INFOID:0000000009019915

DTC DETECTION LOGIC

DTC CONFIRMATION PROCEDURE

1.

PREPARATION BEFORE WORK

If another “DTC CONFIRMATION PROCEDURE” occurs just before, turn ignition switch OFF and wait for at

least 10 seconds, then perform the next test.

>> GO TO 2.

2.

CHECK DTC DETECTION

With CONSULT

1. Start the engine and wait for at least 5 seconds.

2. Check the DTC.
Is “U1000” detected?

YES

>> Go to 

TM-139, "Diagnosis Procedure"

.

NO

>> INSPECTION END

Diagnosis Procedure

INFOID:0000000009019916

For the diagnosis procedure, refer to 

LAN-15, "Trouble Diagnosis Flow Chart"

. 

DTC

Trouble diagnosis name

DTC detection condition

Possible causes

U1000

CAN Communication Line

When the ignition switch is ON, TCM cannot 
send the CAN communication signal continu-
ously for 2 seconds or more. 

Harness or connector
(CAN communication line is open or 
shorted)

TM-140

< DTC/CIRCUIT DIAGNOSIS >

[CVT: RE0F11A]

U1117 LOST COMMUNICATION (ABS)

U1117 LOST COMMUNICATION (ABS)

Description

INFOID:0000000009019917

CAN (Controller Area Network) is a serial communication line for real-time application. It is an on-vehicle mul-

tiplex communication line with high data communication speed and excellent malfunction detection ability.

Many electronic control units are equipped onto a vehicle, and each control unit shares information and links

with other control units during operation (not independently). In CAN communication, control units are con-

nected with 2 communication lines (CAN-H line, CAN-L line) allowing a high rate of information transmission

with less wiring. Each control unit transmits/receives data but selectively reads required data only.

DTC Logic

INFOID:0000000009019918

DTC DETECTION LOGIC

DTC CONFIRMATION PROCEDURE

1.

PREPARATION BEFORE WORK

If another "DTC CONFIRMATION PROCEDURE" occurs just before, turn ignition switch OFF and wait for at

least 10 seconds, then perform the next test.

>> GO TO 2.

2.

PERFORM DTC CONFIRMATION PROCEDURE

With CONSULT

1. Start the engine and wait for 5 seconds or more.

2. Check the DTC.
Is “U1117” detected?

YES

>> Go to 

TM-133, "Diagnosis Procedure"

.

NO

>> INSPECTION END

Diagnosis Procedure

INFOID:0000000009019919

For the diagnosis procedure, refer to 

LAN-15, "Trouble Diagnosis Flow Chart"

. 

DTC

Trouble diagnosis name

DTC detection condition

Possible causes

U1117

Lost Communication With 
ABS

When the ignition switch is ON, TCM is unable 
to receive the CAN communications signal 
from ABS actuator and electric unit (control 
unit) continuously for 2 seconds or more.

• ABS actuator and electric unit (control 

unit)

• Harness or connector

(CAN communication line is open or 
shorted)

P062F EEPROM

TM-141

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P062F EEPROM

Description

INFOID:0000000009019920

TCM compares the calculated value stored in the flash ROM with the value stored in TCM. If the calculated

value does not agree with the stored value, TCM judges this as a malfunction.

DTC Logic

INFOID:0000000009019921

DTC DETECTION LOGIC

DTC CONFIRMATION PROCEDURE

1.

PREPARATION BEFORE WORK

If another "DTC CONFIRMATION PROCEDURE" occurs just before, turn ignition switch OFF and wait for at

least 10 seconds, then perform the next test.

>> GO TO 2.

2.

CHECK DTC DETECTION

1. Start the engine.

2. Check the DTC.
Is “P062F” detected?

YES

>> Go to 

TM-141, "Diagnosis Procedure"

.

NO

>> INSPECTION END

Diagnosis Procedure

INFOID:0000000009019922

1.

CHECK INTERMITTENT INCIDNT

Refer to 

GI-41, "Intermittent Incident"

.

Is the inspection result normal?

YES

>> Replace the TCM. Refer to 

TM-235, "Removal and Installation"

.

NO

>> Repair or replace malfunctioning parts.

DTC

Trouble diagnosis name

DTC detection condition

Possible causes

P062F

Internal Control Module EE-
PROM Error

Flash ROM error is detected when turning ON 
the ignition switch.

• TCM (flash ROM)
• Harness or connector

[TCM power supply (back-up) circuit is 
open or shorted]