Infiniti G37 Coupe. Manual - part 1316

DIAGNOSIS SYSTEM (TCM)

TM-117

< FUNCTION DIAGNOSIS >

[5AT: RE5R05A]

C

E

F

G

H

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J

K

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M

A

B

TM

N

O

P

DTC WORK SUPPORT

Display Items List

ASCD-CRUISE (On/Off)

—

—

—

DS RANGE (On/Off)

X

—

—

Monitored item (Unit)

Monitor Item Selection

Remarks

ECU IN-

PUT SIG-

NALS

MAIN SIG-

NALS

SELEC-

TION 

FROM 

ITEM

DTC work support item

Description

Check item

1ST GR FUNCTN P0731

Following items for “1st gear function” can be confirmed.
• Self-diagnosis status (whether the diagnosis is being performed or not)
• Self-diagnostic results (OK or NG)

• Input clutch solenoid 

valve

• Front brake solenoid 

valve

• Direct clutch solenoid 

valve

• High and low reverse 

clutch solenoid valve

• Each clutch
• Hydraulic control cir-

cuit

2ND GR FUNCTN P0732

Following items for “2nd gear function” can be confirmed.
• Self-diagnosis status (whether the diagnosis is being performed or not)
• Self-diagnostic results (OK or NG)

3RD GR FUNCTN P0733

Following items for “3rd gear function” can be confirmed.
• Self-diagnosis status (whether the diagnosis is being performed or not)
• Self-diagnostic results (OK or NG)

4TH GR FUNCTN P0734

Following items for “4th gear function” can be confirmed.
• Self-diagnosis status (whether the diagnosis is being performed or not)
• Self-diagnostic results (OK or NG)

5TH GR FUNCTN P0735

Following items for “5th gear function” can be confirmed.
• Self-diagnosis status (whether the diagnosis is being performed or not)
• Self-diagnostic results (OK or NG)

TM-118

< COMPONENT DIAGNOSIS >

[5AT: RE5R05A]

U1000 CAN COMM CIRCUIT

COMPONENT DIAGNOSIS

U1000 CAN COMM CIRCUIT

Description

INFOID:0000000001672120

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:0000000001672121

DTC DETECTION LOGIC

DTC CONFIRMATION PROCEDURE

NOTE:
If “DTC CONFIRMATION PROCEDURE” has been previously performed, always turn ignition switch
OFF. Then wait at least 10 seconds before performing the next test.

1.

CHECK DTC DETECTION

 With CONSLULT-III

1.

Start the engine.

2.

Run engine for at least 6 consecutive seconds at idle speed.

3.

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

 With GST

Follow the procedure “With CONSULT-III”

Is “U1000 CAN COMM CIRCUIT” detected?

YES

>> Go to 

TM-118, "Diagnosis Procedure"

.

NO

>> Check intermittent incident. Refer to 

GI-38, "Intermittent Incident"

.

Diagnosis Procedure

INFOID:0000000001672122

1.

CHECK CAN COMMUNICATION CIRCUIT

With CONSULT-III

1.

Start the engine.

2.

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

Is “U1000 CAN COMM CIRCUIT” detected?

YES

>> Go to LAN section. Refer to 

LAN-16, "Trouble Diagnosis Flow Chart"

.

NO

>> Check intermittent incident. Refer to 

GI-38, "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

TCM is not transmitting 
or receiving CAN com-
munication signal for 2 
seconds or more.

• Harness or connectors

(CAN communication 
line is open or short-
ed.)

• TCM

P0615 START SIGNAL

TM-119

< COMPONENT DIAGNOSIS >

[5AT: RE5R05A]

C

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G

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A

B

TM

N

O

P

P0615 START SIGNAL

Description

INFOID:0000000001672123

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

DTC Logic

INFOID:0000000001672124

DTC DETECTION LOGIC

DTC CONFIRMATION PROCEDURE

NOTE:
If “DTC CONFIRMATION PROCEDURE” has been previously performed, always turn ignition switch
OFF. Then wait at least 10 seconds before performing the next test.

1.

CHECK DTC DETECTION

 With CONSULT-III

1.

Shift the selector lever in “P” or “N” position.

2.

Turn ignition switch ON and wait for at least 2 seconds.

3.

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

Is “P0615 STARTER RELAY/CIRC” detected?

YES

>> Go to 

TM-119, "Diagnosis Procedure"

.

NO

>> Check intermittent incident. Refer to 

GI-38, "Intermittent Incident"

.

Diagnosis Procedure

INFOID:0000000001672125

1.

CHECK STARTER RELAY SIGNAL

1.

Turn ignition switch ON.

2.

Check voltage between IPDM E/R connector terminal and ground.

Is the inspection result normal?

YES

>> Check starter relay circuit. Refer to 

STR-9, "Wiring Diagram - STARTING SYSTEM -"

.

NO

>> GO TO 2.

2.

 CHECK HARNESS BETWEEN A/T ASSEMBLY AND IPDM E/R (STEP 1)

1.

Turn ignition switch OFF.

2.

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

3.

Check the continuity between A/T assembly vehicle side harness connector terminal and IPDM E/R vehi-
cle side harness connector terminal.

DTC

Item

(CONSULT-III screen 

terms)

A/T CHECK indicator 
lamp judgment flicker

Diagnostic item is de-

tected when...

Possible cause

P0615

STARTER RELAY/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

IPDM E/R connector

Ground

Condition

Voltage (Approx.)

Connector

Terminal

E5

30

Selector lever in “P” and 
“N” position.

Battery voltage

Selector lever in other 
position.

0 V

TM-120

< COMPONENT DIAGNOSIS >

[5AT: RE5R05A]

P0615 START SIGNAL

Is the inspection result normal?

YES

>> GO TO 3.

NO

>> Repair or replace damaged parts.

3.

CHECK HARNESS BETWEEN A/T ASSEMBLY AND IPDM E/R (STEP 2)

Check the continuity between A/T assembly vehicle side harness connector terminal and ground.

Is the inspection result normal?

YES

>> GO TO 4.

NO

>> Repair or replace damaged parts.

4.

DETECT MALFUNCTIONING ITEM (STEP 1)

Check the following.
• Check terminals of A/T assembly harness connector and IPDM E/R connector for damage.
• Check connector for loose connection.

Is the inspection result normal?

YES

>> GO TO 5.

NO

>> Repair or replace damaged parts.

5.

CHECK TERMINAL CORD ASSEMBLY

1.

Remove control valve with TCM. Refer to 

TM-232, "Exploded View"

.

2.

Disconnect TCM connector.

3.

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

Is the inspection result normal?

YES

>> GO TO 6.

NO

>> Repair or replace damaged parts.

6.

DETECT MALFUNCTIONING ITEM (STEP 2)

Check the following.
• Check terminals of TCM connector and harness cladding for damage.
• Check connector for loose connection.

Is the inspection result normal?

YES

>> Replace the control valve with TCM. Refer to 

TM-232, "Exploded View"

NO

>> Repair or replace damaged parts.

A/T assembly vehicle side harness connector

IPDM E/R vehicle side harness connector

Continuity

Connector

Terminal

Connector

Terminal

F51

9

E5

30

Existed

A/T assembly vehicle side harness connector

Ground

Continuity

Connector

Terminal

F51

9

Not existed

A/T assembly harness connector

TCM connector

Continuity

Connector

Terminal

Connector

Terminal

F51

9

F151

8

Existed