Infiniti FX35 / FX45. Manual - part 42

AT-96

< SERVICE INFORMATION >

DTC U1000 CAN COMMUNICATION LINE

TCM terminals and data are reference value. Measured between each terminal and ground.

Diagnosis Procedure

INFOID:0000000001327170

1.

CHECK CAN COMMUNICATION CIRCUIT

 With CONSULT-III

1.

Turn ignition switch ON and start engine.

2.

Select “SELF-DIAG RESULTS” mode for “TRANSMISSION” with CONSULT-III.

Is the “U1000 CAN COMM CIRCUIT” indicated?

YES

>> Go to LAN section. Refer to 

LAN-43, "CAN System Specification Chart"

.

NO

>> INSPECTION END

Terminal

Wire 

color

Item

Condition

Data (Approx.)

3

L

CAN-H

–

–

8

P

CAN-L

–

–

DTC P0615 START SIGNAL CIRCUIT

AT-97

< SERVICE INFORMATION >

D

E

F

G

H

I

J

K

L

M

A

B

AT

N

O

P

DTC P0615 START SIGNAL CIRCUIT

Description

INFOID:0000000001327171

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

CONSULT-III Reference Value in Data Monitor Mode

INFOID:0000000001327172

On Board Diagnosis Logic

INFOID:0000000001327173

Diagnostic trouble code “P0615 STARTER RELAY/CIRC” with CONSULT-III or 14th judgement flicker without
CONSULT-III is detected when starter relay is switched ON other than at “P” or “N” position. (Or when
switched OFF at “P” or “N” position).

Possible Cause

INFOID:0000000001327174

• Harness or connectors

(Starter relay and TCM circuit is open or shorted.)

• Starter relay circuit

DTC Confirmation Procedure

INFOID:0000000001327175

CAUTION:

Always drive vehicle at a safe speed.
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.

 WITH CONSULT-III

1.

Turn ignition switch ON.

2.

Select “SELECTION FROM MENU” in “DATA MONITOR” mode for “TRANSMISSION” with CONSULT-III
and check monitor “STARTER RELAY” ON/OFF.

3.

Start engine.

4.

Drive vehicle for at least 2 consecutive seconds.

5.

If DTC is detected, go to 

AT-99, "Diagnosis Procedure"

.

Item name

Condition 

Display value

STARTER RELAY

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

ON

Selector lever in other positions.

OFF

AT-98

< SERVICE INFORMATION >

DTC P0615 START SIGNAL CIRCUIT

Wiring Diagram - AT - STSIG

INFOID:0000000001327176

TCM terminals and data are reference value. Measured between each terminal and ground.

TCWM0247E

Terminal

Wire 

color

Item

Condition

Data (Approx.)

9

GY

Starter relay

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

Battery voltage

Selector lever in other positions.

0 V

DTC P0615 START SIGNAL CIRCUIT

AT-99

< SERVICE INFORMATION >

D

E

F

G

H

I

J

K

L

M

A

B

AT

N

O

P

Diagnosis Procedure

INFOID:0000000001327177

1.

CHECK STARTER RELAY

 With CONSULT-III

1.

Turn ignition switch ON.

2.

Select “SELECTION FROM MENU” in “DATA MONITOR” mode for “TRANSMISSION” with CONSULT-III
and check monitor “STARTER RELAY” ON/OFF.

 Without CONSULT-III

1.

Turn ignition switch ON.

2.

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

OK or NG

OK

>> GO TO 5.

NG

>> GO TO 2.

2.

 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 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.

5.

Reinstall any part removed.

OK or NG

OK

>> GO TO 3.

NG

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

3.

CHECK TERMINAL CORD ASSEMBLY

1.

Remove control valve with TCM. Refer to 

AT-215, "Control Valve with TCM and A/T Fluid Temperature

Sensor 2"

.

2.

Disconnect A/T assembly harness connector and TCM connector.

Item name

Condition 

Display value

STARTER RELAY

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

ON

Selector lever in other positions.

OFF

Name

Connector

Terminal

Shift position

Voltage (Approx.) 

Starter re-
lay

E9

53 - Ground

“N” and “P”

Battery voltage

“R” and “D”

0 V

SCIA2103E

Item

 Connector

Terminal

Continuity

A/T assembly harness con-
nector

F44

9 

Yes

IPDM E/R connector

E9

53 

SCIA5439E