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
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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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.
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AT-137, "Component Inspection"
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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,
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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