Infiniti F50. Manual - part 54

DTC U1000 CAN COMMUNICATION LINE

AT-101

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Diagnostic Procedure

ECS0083Q

1. 

CHECK CAN COMMUNICATION CIRCUIT

 With CONSULT-II

1.

Turn ignition switch to “ON” position and start engine.

2.

Select “DATA MONITOR” mode for “A/T” with CONSULT-II.

3.

The “CAN COMM CIRCUIT” is detected.

Yes or No?

Yes

>> Print out CONSULT-II screen, GO TO 2.

No

>> INSPECTION END

2. 

CHECK CAN COMMUNICATION SIGNALS

 With CONSULT-II

1.

Turn ignition switch to “ON” position and start engine.

2.

Select “CAN DIAG SUPPORT MNTR” in “DATA MONITOR” mode for “A/T” with CONSULT-II.

>> Print out CONSULT-II screen, go to 

LAN-24, "CAN SYSTEM (FOR VDC MODELS)"

  or 

LAN-40,

"CAN SYSTEM (FOR ICC MODELS)"

 .

CAN Communication Signals

PCIA0061E

Normal conditions

Malfunction conditions (examples)

CAN COMM: OK

CAN COMM: OK

CAN CIRC 1: OK

CAN CIRC 1: UNKWN

CAN CIRC 2: OK

CAN CIRC 2: UNKWN

CAN CIRC 3: OK

CAN CIRC 3: UNKWN

CAN CIRC 4: OK

CAN CIRC 4: UNKWN

CAN CIRC 5: OK (with ICC) or UNKWN (without ICC)

CAN CIRC 5: UNKWN

AT-102

DTC P0615 START SIGNAL CIRCUIT

DTC P0615 START SIGNAL CIRCUIT

PFP:25230

Description

ECS0083R

Prohibits cranking other at “P” or “N” position.

On Board Diagnosis Logic

ECS0083S

●

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

●

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

Possible Cause

ECS0083T

●

Harness or connectors
[The park/neutral position (PNP) relay and TCM circuit is open or shorted.]

●

Park/neutral position (PNP) relay

DTC Confirmation Procedure

ECS0083U

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

 WITH CONSULT-II

1.

Turn ignition switch to “ON” position. (Do not start engine.)

2.

Select “DATA MONITOR” mode for “A/T” with CONSULT-II.

3.

Start engine.

4.

Vehicle start for at least 2 consecutive seconds.

5.

If DTC is detected, go to 

AT-104, "Diagnostic Procedure"

 .

SAT014K

DTC P0615 START SIGNAL CIRCUIT

AT-103

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Wiring Diagram — AT — STSIG

ECS0083V

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

TCWM0098E

Terminal   

No.

Wire 

color

Item

Condition

Data (Approx.)

48

B/W

PNP relay
(Starter relay)

IGN ON

Selector lever in “N”,“ P” position.

Battery voltage

Selector lever in other position.

0V

AT-104

DTC P0615 START SIGNAL CIRCUIT

Diagnostic Procedure

ECS0083W

1. 

CHECK PNP RELAY (WITH CONSULT-II)

 With CONSULT-II

1.

Turn ignition switch to “ON” position. (Do not start engine.)

2.

Select “SELECTION FROM MENU” in “DATA MONITOR” mode
for “A/T” with CONSULT-II and check monitor “STARTER
RELAY” (PNP relay) ON/OFF.

OK or NG

OK

>> GO TO 4.

NG

>> GO TO 3.

2. 

CHECK PNP RELAY (WITHOUT CONSULT-II)

 Without CONSULT-II

1.

Turn ignition switch to “ON” position. (Do not start engine.)

2.

Check the voltage between the TCM connector and ground.

OK or NG

OK

>> GO TO 4.

NG

>> GO TO 3.

3. 

DETECT MALFUNCTIONING ITEM

Check the following items:

●

PNP relay. Refer to 

PG-64, "STANDARDIZED RELAY"

 .

●

Disconnections or short-circuits in the harness between TCM and the PNP relay

●

Ground circuit for the PNP relay

OK or NG

OK

>> GO TO 4.

NG

>> Repair or replace damaged parts.

4. 

CHECK DTC

Perform “DTC Confirmation Procedure”. Refer to 

AT-102, "DTC Confirmation Procedure"

 .

OK or NG

OK

>> INSPECTION END

NG

>> GO TO 5.

5. 

PERFORM TCM INSPECTION

1.

Perform TCM input/output signal inspection.

2.

If NG, recheck TCM pin terminals for damage or loose connection with harness connector.

OK or NG

OK

>> INSPECTION END

NG

>> Repair or replace damaged parts.

PCIA0056E

Item

Connector 

No.

Terminal No.

(Wire color)

Shift position

Voltage 

(Approx.) 

PNP relay
(Starter relay)

F104

48

(B/W)

Ground

N and P

Battery voltage

R and D

0V

PCIA0060E