Infiniti I30 (A33). Manual — part 283
Wiring Diagram
NHEC0269
MEC747C
SEF629XB
GI
MA
EM
LC
FE
AT
AX
SU
BR
ST
RS
BT
HA
SC
EL
IDX
DTC P0600 A/T COMMUNICATION LINE
Wiring Diagram
EC-447
Diagnostic Procedure
NHEC0270
1
CHECK A/T CONTROL INPUT SIGNAL CIRCUIT FOR OPEN
1. Turn ignition switch “OFF”.
2. Disconnect ECM harness connector and TCM (Transmission Control Module) harness connector.
SEC004C
SEF271X
3. Check harness continuity between ECM terminal 114 and TCM terminal 33.
Refer to Wiring Diagram.
Continuity should exist.
OK or NG
OK
©
GO TO 2.
NG
©
Repair harness or connectors.
2
CHECK A/T CONTROL INPUT SIGNAL CIRCUIT FOR SHORT
1. Check harness continuity between ECM terminal 114 and ground.
Refer to Wiring Diagram.
Continuity should not exist.
2. Also check harness for short to power.
OK or NG
OK
©
GO TO 3.
NG
©
Repair short to ground or short to power in harness or connectos.
3
CHECK INTERMITTENT INCIDENT
Refer to “TROUBLE DIAGNOSIS FOR INTERMITTENT INCIDENT”, EC-144.
©
INSPECTION END
DTC P0600 A/T COMMUNICATION LINE
Diagnostic Procedure
EC-448
SEC220B
Component Description
NHEC0271
The ECM consists of a microcomputer and connectors for signal
input and output and for power supply. The unit controls the engine.
On Board Diagnosis Logic
NHEC0272
Malfunction is detected when ECM calculation function is
malfunctioning.
Possible Cause
NHEC0518
I
ECM
DTC Confirmation Procedure
NHEC0273
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.
SEF058Y
WITH CONSULT-II
NHEC0273S01
1)
Turn ignition switch “ON”.
2)
Select “DATA MONITOR” mode with CONSULT-II.
3)
Start engine.
4)
Run engine for at least 30 seconds at idle speed.
5)
If 1st trip DTC is detected, go to “Diagnostic Procedure”,
EC-450.
WITH GST
NHEC0273S02
Follow the procedure “WITH CONSULT-II” above.
GI
MA
EM
LC
FE
AT
AX
SU
BR
ST
RS
BT
HA
SC
EL
IDX
DTC P0605 ECM
Component Description
EC-449
Diagnostic Procedure
NHEC0274
1
INSPECTION START
With CONSULT-II
1. Turn ignition switch “ON”.
2. Select “SELF DIAG RESULTS” mode with CONSULT-II.
3. Touch “ERASE”.
4. Perform “DTC Confirmation Procedure”.
See EC-449.
5. Is the 1st trip DTC P0605 displayed again?
With GST
1. Turn ignition switch “ON”.
2. Select MODE 4 with GST.
3. Touch “ERASE”.
4. Perform “DTC Confirmation Procedure”.
See EC-449.
5. Is the 1st trip DTC P0605 displayed again?
Yes or No
Yes
©
GO TO 2.
No
©
INSPECTION END
2
REPLACE ECM
1. Replace ECM.
2. Perform initialization of IVIS (NATS) system and registration of all IVIS (NATS) ignition key IDs. Refer to “IVIS (INFINITI
VEHICLE IMMOBILIZER SYSTEM — NATS)”, EC-82.
3. Perform “Idle Air Volume Learning”, EC-66,
Is the result CMPLT or INCMP?
CMPLT or INCMP
CMPLT
©
INSPECTION END
INCMP
©
Follow the construction of “Idle Air Volume Learning”.
DTC P0605 ECM
Diagnostic Procedure
EC-450
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