Infiniti F50. Manual - part 63

 

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Infiniti F50. Manual - part 63

 

 

DTC P1701 TRANSMISSION CONTROL MODULE (POWER SUPPLY)

AT-137

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3. 

DETECT MALFUNCTIONING ITEM

Check the following items:

Harness for short or open between battery and TCM terminal 9

Harness for short or open between ignition switch and TCM terminals 2, 3, 33 and 42

10A fuse [No. 32 or 35, located in the fuse block (J/B)]

Ignition switch. Refer to 

PG-2, "POWER SUPPLY ROUTING"

 .

A/T PV IGN relay. Refer to 

AT-137, "Component Inspection"

 .

ECM relay. Refer to 

EC-133, "POWER SUPPLY CIRCUIT FOR ECM"

 .

OK or NG

OK

>> GO TO 4.

NG

>> Repair or replace damaged parts.

4. 

CHECK TCM GROUND CIRCUIT

1.

Turn ignition switch to “OFF” position.

2.

Disconnect TCM harness connector.

3.

Check continuity between TCM terminals 5 (B), 14 (B), 24 (B),
46 (B) and ground.

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

OK or NG

OK

>> GO TO 5.

NG

>> Repair open circuit or short to ground or short to power

in harness or connectors.

5. 

CHECK DTC

Check again. Refer to 

AT-132, "DTC Confirmation Procedure"

 .

OK or NG

OK

>> INSPECTION END

NG

>> GO TO 6.

6. 

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.

Component Inspection

ECS00854

A/T PV IGN RELAY

1.

Apply 12V direct current between A/T PV IGN relay terminals 1
and 2.

2.

Check continuity between relay terminals 3 and 5.

3.

If NG, replace A/T PV IGN relay.

Continuity should exist.

SCIA1161E

Condition

Continuity

12V direct current supply between terminals 1 and 2

Yes

OFF

No

SCIA1245E

AT-138

DTC P1702 TRANSMISSION CONTROL MODULE (RAM)

DTC P1702 TRANSMISSION CONTROL MODULE (RAM)

PFP:31036

Description

ECS00855

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

On Board Diagnosis Logic

ECS00856

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

Diagnostic trouble code “TCM·RAM” with CONSULT-II is detected when TCM memory RAM is malfunc-
tioning.

Possible Cause

ECS00857

TCM

DTC Confirmation Procedure

ECS00858

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.

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

5.

If DTC is detected, go to 

AT-139, "Diagnostic Procedure"

 .

SCIA1287E

SAT014K

DTC P1702 TRANSMISSION CONTROL MODULE (RAM)

AT-139

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Diagnostic Procedure

ECS00859

1. 

CHECK DTC

 With CONSULT-II

1.

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

2.

Select “SELF DIAG RESULTS” mode for “A/T” with CONSULT-
II.

3.

Touch “ERASE”.

4.

Turn ignition switch to “OFF” position and wait at least 10 sec-
onds.

5.

Perform DTC confirmation procedure, 

AT-138, "DTC Confirma-

tion Procedure"

 .

Is the “TCM·RAM” displayed again?

Yes

>> Replace TCM. 

No

>> INSPECTION END

SCIA1290E

AT-140

DTC P1703 TRANSMISSION CONTROL MODULE (ROM)

DTC P1703 TRANSMISSION CONTROL MODULE (ROM)

PFP:31036

Description

ECS0085A

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

On Board Diagnosis Logic

ECS0085B

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

Diagnostic trouble code “TCM·ROM” with CONSULT-II is detected when TCM memory ROM is malfunc-
tioning.

Possible Cause

ECS0085C

TCM

DTC Confirmation Procedure

ECS0085D

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.

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

5.

If DTC is detected, go to 

AT-141, "Diagnostic Procedure"

 .

SCIA1287E

SAT014K

 

 

 

 

 

 

 

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