Infiniti G35 (V35) Sedan. Manual - part 1357

TM-120

< COMPONENT DIAGNOSIS >

[5AT: RE5R05A]

U1000 CAN COMM CIRCUIT

COMPONENT DIAGNOSIS

U1000 CAN COMM CIRCUIT

Description

INFOID:0000000000957011

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 independent). 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:0000000000957012

DTC DETECTION LOGIC

*: This is an OBD-II self-diagnostic item.

DTC CONFIRMATION PROCEDURE

NOTE:
If “DTC CONFIRMATION PROCEDURE” has been previously performed, always turn ignition switch
OFF and wait at least 10 seconds before performing the next test.
After the repair, perform the following procedure to confirm the malfunction is eliminated.

1.

CHECK DTC DETECTION

 With CONSLULT-III

1.

Start the engine.

2.

Run engine for at least 2 consecutive seconds at idle speed.

3.

Perform “SELF-DIAG RESULTS” mode for “TRANSMISSION”. Refer to 

TM-114, "CONSULT-III Function

(TRANSMISSION)"

.

 With GST

Follow the procedure “With CONSULT-III”

Is “U1000 CAN COMM CIRCUIT” detected?

YES

>> Go to 

TM-120, "Diagnosis Procedure"

.

NO

>> Check Intermittent incident. Refer to 

GI-39, "Intermittent Incident"

.

Diagnosis Procedure

INFOID:0000000000957013

1.

CHECK CAN COMMUNICATION CIRCUIT

 With CONSULT-III

1.

Start the engine.

2.

Perform “SELF-DIAG RESULTS” mode for “TRANSMISSION”.

Is any malfunction of the “U1000 CAN COMM CIRCUIT” indicated?

YES

>> Go to LAN section. Refer to 

LAN-18, "Trouble Diagnosis Flow Chart"

.

NO

>> Check Intermittent incident. Refer to 

GI-39, "Intermittent Incident"

.

DTC

Item

(CONSULT-III screen 

terms)

A/T CHECK indicator 
lamp judgment flicker

Diagnostic item is de-

tected when...

Possible cause

U1000*

CAN COMM CIRCUIT

17th

When TCM is not trans-
mitting or receiving CAN 
communication signal for 
2 seconds or more.

Harness or connectors
(CAN communication 
line is open or shorted.)

P0615 START SIGNAL

TM-121

< COMPONENT DIAGNOSIS >

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P0615 START SIGNAL

Description

INFOID:0000000000957014

TCM prohibits cranking other than at “P” or “N” position.

DTC Logic

INFOID:0000000000957015

DTC DETECTION LOGIC

*: This is not an OBD-II self-diagnostic item.

DTC CONFIRMATION PROCEDURE

NOTE:
If “DTC CONFIRMATION PROCEDURE” has been previously performed, always turn ignition switch
OFF and wait at least 10 seconds before performing the next test.
After the repair, perform the following procedure to confirm the malfunction is eliminated.

1.

CHECK DTC DETECTION

  With CONSULT-III

1.

Start the engine.

2.

Select “DATA MONITOR”.

3.

Drive vehicle for at least 2 consecutive seconds.

Is “P0615 STARTER RELAY/CIRC” detected?

YES

>> Go to 

TM-121, "Diagnosis Procedure"

.

NO

>> Check Intermittent incident. Refer to 

GI-39, "Intermittent Incident"

.

Diagnosis Procedure

INFOID:0000000000957016

1.

 CHECK HARNESS BETWEEN A/T ASSEMBLY HARNESS CONNECTOR AND IPDM E/R CONNECTOR

1.

Turn ignition switch OFF.

2.

Disconnect A/T assembly harness connector and IPDM E/R connector.

3.

Check the continuity between A/T assembly harness connector and IPDM E/R connector.

4.

If OK, check harness for short to ground and short to power.

Is the inspection result normal?

YES

>> GO TO 2.

NO

>> Repair open circuit or short to ground or short to power in harness or connectors.

2.

CHECK TERMINAL CORD ASSEMBLY

1.

Remove control valve with TCM. Refer to 

TM-240, "Exploded View"

.

2.

Disconnect A/T assembly harness connector and TCM connector.

DTC

Item

(CONSULT-III screen 

terms)

A/T CHECK indicator 
lamp judgment flicker

Diagnostic item is de-

tected when...

Possible cause

P0615*

STARTER TELAY/CIRC

14th

If this signal is ON other 
than in “P” or “N” posi-
tion, this is judged to be a 
malfunction.
(And if it is OFF in “P” or 
“N” position, this too is 
judged to be a malfunc-
tion.

• Harness or connectors

(Starter relay and TCM 
circuit is open or short-
ed.)

• Starter relay circuit

STARTER RELAY

A/T assembly harness connector

IPDM E/R connector

Continuity

Connector

Terminal

Connector

Terminal

F51

9

E5

30

Existed

TM-122

< COMPONENT DIAGNOSIS >

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P0615 START SIGNAL

3.

Check continuity between A/T assembly harness connector and TCM connector.

4.

If OK, check harness for short to ground and short to power.

Is the inspection result normal?

YES

>> GO TO 3.

NO

>> Repair open circuit or short to ground or short to power in harness or connectors.

3.

CHECK STARTER RELAY

Check starter relay. Refer to 

SEC-68, "Description"

.

Is the inspection result normal?

YES

>> Replace the control valve with TCM. Refer to 

TM-240, "Exploded View"

.

NO

>> Repair or replace damaged parts.

A/T assembly harness connector

TCM connector

Continuity

Connector

Terminal

Connector

Terminal

F51

9

F151

8

Existed

P0700 TCM

TM-123

< COMPONENT DIAGNOSIS >

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P0700 TCM

Description

INFOID:0000000000957017

The TCM consists of a microcomputer and connectors for signal input and output and for power supply. The
TCM controls the A/T.

DTC Logic

INFOID:0000000000957018

DTC DETECTION LOGIC

*: This is an OBD-II self-diagnostic item.

DTC CONFIRMATION PROCEDURE

NOTE:
If “DTC CONFIRMATION PROCEDURE” has been previously performed, always turn ignition switch
OFF and wait at least 10 seconds before performing the next test.
After the repair, perform the following procedure to confirm the malfunction is eliminated.

1.

CHECK DTC DETECTION

  With CONSULT-III

1.

Start the engine.

2.

Run engine for at least 2 consecutive seconds at idle speed.

3.

Perform “SELF-DIAG RESULTS” mode for “TRANSMISSION”. Refer to 

TM-114, "CONSULT-III Function

(TRANSMISSION)"

.

  With GST

Follow the procedure “With CONSULT-III”.

Is “P0700 TCM” detected?

YES

>> Go to 

TM-123, "Diagnosis Procedure"

.

NO

>> Check Intermittent incident. Refer to 

GI-39, "Intermittent Incident"

.

Diagnosis Procedure

INFOID:0000000000957019

1.

CHECK DTC

  With CONSULT-III

1.

Turn ignition switch ON.

2.

Select “SELF-DIAG RESULTS” mode for “TRANSMISSION”.

3.

Touch “ERASE”.

4.

Turn ignition switch OFF and wait for at least 10 seconds.

5.

Check the DTC again. Refer to 

TM-123, "DTC Logic"

Is the “P0700 TCM” detected again?

YES

>> Replace the control valve with TCM. Refer to 

TM-240, "Exploded View"

.

NO

>> Check Intermittent incident. Refer to 

GI-39, "Intermittent Incident"

.

DTC

Item

(CONSULT-III screen terms)

Diagnostic item is detected 

when...

Possible cause

P0700*

TCM

TCM is malfunctioning.

TCM