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)]
●
.
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AT-145, "Component Inspection"
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ECM relay. Refer to
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,
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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