Infiniti M45 (Y34). Manual - part 65

 

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Infiniti M45 (Y34). Manual - part 65

 

 

DTC P1701 TRANSMISSION CONTROL MODULE (POWER SUPPLY)

AT-145

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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-145, "Component Inspection"

 .

ECM relay. Refer to 

PG-2, "POWER SUPPLY ROUTING"

 .

OK or NG

OK

>> GO TO 4.

NG

>> Repair or replace damaged parts.

4. 

CHECK TCM GROUND CIRCUIT

1.

Turn ignition switch OFF.

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-140, "DTC Confirmation Procedure"

 .

OK or NG

OK

>> INSPECTION END

NG

>> GO TO 6.

6. 

CHECK TCM

1.

Check TCM input/output signal. Refer to 

AT-86, "TCM Input/Output Signal Reference Values"

 .

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

ACS002L0

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-146

DTC P1702 TRANSMISSION CONTROL MODULE (RAM)

DTC P1702 TRANSMISSION CONTROL MODULE (RAM)

PFP:31036

Description

ACS001BO

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

ACS001BP

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

ACS001BQ

TCM

DTC Confirmation Procedure

ACS001BR

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 ON. (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-147, "Diagnostic Procedure"

 .

SCIA1287E

SAT014K

DTC P1702 TRANSMISSION CONTROL MODULE (RAM)

AT-147

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Diagnostic Procedure

ACS001BS

1. 

CHECK DTC

 With CONSULT-II

1.

Turn ignition switch ON. (Do not start engine.)

2.

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

3.

Touch “ERASE”.

4.

Turn ignition switch OFF and wait at least 10 seconds.

5.

Perform DTC confirmation procedure, 

AT-146, "DTC Confirma-

tion Procedure"

 .

Is the “TCM·RAM” displayed again?

YES

>> Replace TCM. 

NO

>> INSPECTION END

SCIA5304E

AT-148

DTC P1703 TRANSMISSION CONTROL MODULE (ROM)

DTC P1703 TRANSMISSION CONTROL MODULE (ROM)

PFP:31036

Description

ACS001BT

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

ACS001BU

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

ACS001BV

TCM

DTC Confirmation Procedure

ACS001BW

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 ON. (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-149, "Diagnostic Procedure"

 .

SCIA1287E

SAT014K

 

 

 

 

 

 

 

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