Infiniti I30 (A33). Manual — part 299
SEF860Y
Diagnostic Procedure
NHEC0291
1
CHECK ENGINE START
Turn ignition switch “OFF”, and restart engine.
Is engine running?
Yes or No
Yes (With CONSULT-II)
©
GO TO 2.
Yes (Without CONSULT-
II)
©
GO TO 12.
No
©
GO TO 3.
2
SEARCH FOR MALFUNCTIONING CIRCUIT
With CONSULT-II
1. Perform “POWER BALANCE” in “ACTIVE TEST” mode with CONSULT-II.
2. Search for circuit which does not produce a momentary engine speed drop.
SEF070Y
©
GO TO 12.
GI
MA
EM
LC
FE
AT
AX
SU
BR
ST
RS
BT
HA
SC
EL
IDX
DTC P1320 IGNITION SIGNAL
Wiring Diagram (Cont’d)
EC-511
3
CHECK IGNITION COIL POWER SUPPLY CIRCUIT-I
1. Turn ignition switch ON.
2. Check voltage between ECM terminals 110, 112 and ground with CONSULT-II or tester.
SEF366X
OK or NG
OK
©
GO TO 4.
NG
©
Go to TROUBLE DIAGNOSIS FOR POWER SUPPLY, EC-145.
4
CHECK IGNITION COIL POWER SUPPLY CIRCUIT-II
1. Turn ignition switch OFF.
2. Disconnect condenser harness connector.
SEF275X
3. Turn ignition switch ON.
4. Check voltage between condenser terminal 1 and ground with CONSULT-II or tester.
SEF367X
OK or NG
OK
©
GO TO 10.
NG
©
GO TO 5.
DTC P1320 IGNITION SIGNAL
Diagnostic Procedure (Cont’d)
EC-512
5
CHECK IGNITION COIL POWER SUPPLY CIRCUIT-III
1. Turn ignition switch OFF.
2. Disconnect ECM relay.
SEC003C
3. Check harness continuity between ECM relay terminal 7 and condenser terminal 1. Refer to Wiring Diagram.
Continuity should exist.
4. Also check harness for short to ground and short to power.
OK or NG
OK
©
GO TO 7.
NG
©
GO TO 6.
6
DETECT MALFUNCTIONING PART
Check the following.
I
Harness connectors F18, E15
I
Harness for open or short between ECM relay and condenser
©
Repair open circuit or short to ground or short to power in harness or connectors.
7
CHECK IGNITION COIL POWER SUPPLY CIRCUIT-IV
Check voltage between ECM relay terminal 6 and ground with CONSULT-II or tester.
SEF368X
OK or NG
OK
©
GO TO 9.
NG
©
GO TO 8.
8
DETECT MALFUNCTIONING PART
Check the following.
I
15A fuse
I
Harness for open and short between ECM relay and fuse
©
Repair or replace harness or connectors.
GI
MA
EM
LC
FE
AT
AX
SU
BR
ST
RS
BT
HA
SC
EL
IDX
DTC P1320 IGNITION SIGNAL
Diagnostic Procedure (Cont’d)
EC-513
9
CHECK ECM RELAY
1. Apply 12V direct current between ECM relay terminals 1 and 2.
2. Check continuity between ECM relay terminals 3 and 5, 6 and 7.
SEF296X
OK or NG
OK
©
GO TO 17.
NG
©
Replace ECM relay.
10
CHECK CONDENSER GROUND CIRCUIT FOR OPEN AND SHORT
1. Turn ignition switch OFF.
2. Check harness continuity between condenser terminal 2 and engine ground. Refer to Wiring Diagram.
Continuity should exist.
3. Also check harness for short to power.
OK or NG
OK
©
GO TO 11.
NG
©
Repair open circuit or short to power in harness or connectors.
11
CHECK CONDENSER
Check resistance between condenser terminals 1 and 2.
SEF369X
OK or NG
OK
©
GO TO 12.
NG
©
Replace condenser.
DTC P1320 IGNITION SIGNAL
Diagnostic Procedure (Cont’d)
EC-514
Нет комментариевНе стесняйтесь поделиться с нами вашим ценным мнением.
Текст