Infiniti I30 (A33). Manual — part 220
Wiring Diagram
=NHEC0092
BANK 1
NHEC0092S01
MEC408D
SEF854YB
GI
MA
EM
LC
FE
AT
AX
SU
BR
ST
RS
BT
HA
SC
EL
IDX
DTC P0130 (BANK 1), P0150 (BANK 2) HO2S1 (FRONT) (CIRCUIT)
Wiring Diagram
EC-195
BANK 2
NHEC0092S02
MEC409D
SEF855YB
DTC P0130 (BANK 1), P0150 (BANK 2) HO2S1 (FRONT) (CIRCUIT)
Wiring Diagram (Cont’d)
EC-196
Diagnostic Procedure
NHEC0093
1
INSPECTION START
1. Turn ignition switch “OFF”.
2. Loosen and retighten engine ground screws.
SEF255X
3. Make sure HO2S1 (front) harness protector color, and disconnect corresponding heated oxygen sensor 1 (front) har-
ness connector.
SEC020C
SEF902XA
©
GO TO 2.
GI
MA
EM
LC
FE
AT
AX
SU
BR
ST
RS
BT
HA
SC
EL
IDX
DTC P0130 (BANK 1), P0150 (BANK 2) HO2S1 (FRONT) (CIRCUIT)
Diagnostic Procedure
EC-197
2
CHECK HO2S1 (FRONT) INPUT SIGNAL CIRCUIT FOR OPEN AND SHORT
1. Disconnect ECM harness connector.
2. Check harness continuity between ECM terminal and HO2S1 (front) terminal as follows.
Refer to Wiring Diagram.
MTBL0596
Continuity should exist.
3. Check harness continuity between ECM terminal or HO2S1 (fornt) terminal and ground as follows.
Refer to Wiring Diagram.
MTBL0597
Continuity should not exist.
4. Also check harness for short to power.
OK or NG
OK (With CONSULT-II)
©
GO TO 3.
OK (Without CONSULT-
II)
©
GO TO 4.
NG
©
Repair open circuit or short to ground or short to power in harness or connectors.
DTC P0130 (BANK 1), P0150 (BANK 2) HO2S1 (FRONT) (CIRCUIT)
Diagnostic Procedure (Cont’d)
EC-198
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