Page 534 of 4555
EC-130
[QR (WITH EURO-OBD)]
POWER SUPPLY AND GROUND CIRCUIT
13. DETECT MALFUNCTIONING PART
Check the following.
Harness connectors E60, F36
10A fuse
Harness for open or short between ECM relay and battery
>> Repair open circuit or short to ground or short to power in harness or connectors.
14. CHECK ECM POWER SUPPLY CIRCUIT-V
1. Disconnect ECM harness connector.
2. Check harness continuity between ECM terminals 119, 120 and ECM relay terminal 5.
Refer to Wiring Diagram.
3. Also check harness for short to ground and short to power.
OK or NG
OK >> GO TO 16.
NG >> GO TO 15.
15. DETECT MALFUNCTIONING PART
Check the following.
Harness connectors F41, M61
Harness for open or short between ECM relay and ECM
>> Repair open circuit or short to ground or short to power in harness or connectors.
16. CHECK ECM RELAY
Refer to EC-132, "
Component Inspection" .
OK or NG
OK >> GO TO 17.
NG >> Replace ECM relay.Continuity should exist.
Page 535 of 4555
POWER SUPPLY AND GROUND CIRCUIT
EC-131
[QR (WITH EURO-OBD)]
C
D
E
F
G
H
I
J
K
L
MA
EC
17. CHECK GROUND CONNECTIONS
Loosen and retighten three ground screws on the body.
Refer to EC-132, "
Ground Inspection" .
OK or NG
OK >> GO TO 18.
NG >> Repair or replace ground connections.
18. CHECK ECM GROUND CIRCUIT FOR OPEN AND SHORT-II
1. Disconnect ECM harness connector.
2. Check harness continuity between ECM terminals 1, 115, 116 and ground.
Refer to Wiring Diagram.
3. Also check harness for short to power.
OK or NG
OK >> GO TO 19.
NG >> Repair open circuit or short to power in harness or connectors.
19. CHECK INTERMITTENT INCIDENT
Refer to EC-124, "
TROUBLE DIAGNOSIS FOR INTERMITTENT INCIDENT" .
>>INSPECTION END
PBIB2021E
Continuity should exist.
Page 538 of 4555
EC-134
[QR (WITH EURO-OBD)]
DTC U1000, U1001 CAN COMMUNICATION LINE
Wiring DiagramEBS010ME
TBWA0595E
Page 542 of 4555
EC-138
[QR (WITH EURO-OBD)]
DTC P0011 IVT CONTROL
Diagnostic ProcedureEBS010MK
1. CHECK CRANKSHAFT POSITION SENSOR (POS)
Refer to EC-255, "
Component Inspection" .
OK or NG
OK >> GO TO 2.
NG >> Replace crankshaft position sensor (POS).
2. CHECK CAMSHAFT POSITION SENSOR (PHASE)
Refer to EC-262, "
Component Inspection" .
OK or NG
OK >> GO TO 3.
NG >> Replace camshaft position sensor (PHASE).
3. CHECK CAMSHAFT (INTAKE)
Check the following.
Accumulation of debris to the signal plate of camshaft rear end
Chipping signal plate of camshaft rear end
OK or NG
OK >> GO TO 4.
NG >> Remove debris and clean the signal plate of camshaft
rear end or replace camshaft.
4. CHECK INTERMITTENT INCIDENT
Refer to EC-124, "
TROUBLE DIAGNOSIS FOR INTERMITTENT INCIDENT" .
For wiring diagram, refer to EC-251, "
Wiring Diagram" for CKP sensor (POS) and EC-258, "Wiring Diagram"
for CMP sensor (PHASE).
>>INSPECTION END
PBIB0565E
Page 545 of 4555
DTC P0031, P0032 HO2S1 HEATER
EC-141
[QR (WITH EURO-OBD)]
C
D
E
F
G
H
I
J
K
L
MA
EC
Wiring DiagramEBS010MP
TBWA0596E
Page 547 of 4555
![NISSAN X-TRAIL 2005 Service Repair Manual DTC P0031, P0032 HO2S1 HEATER
EC-143
[QR (WITH EURO-OBD)]
C
D
E
F
G
H
I
J
K
L
MA
EC
2. CHECK HO2S1 POWER SUPPLY CIRCUIT
1. Disconnect heated oxygen sensor 1 harness connector.
2. Turn ignition switc NISSAN X-TRAIL 2005 Service Repair Manual DTC P0031, P0032 HO2S1 HEATER
EC-143
[QR (WITH EURO-OBD)]
C
D
E
F
G
H
I
J
K
L
MA
EC
2. CHECK HO2S1 POWER SUPPLY CIRCUIT
1. Disconnect heated oxygen sensor 1 harness connector.
2. Turn ignition switc](/manual-img/5/57403/w960_57403-546.png)
DTC P0031, P0032 HO2S1 HEATER
EC-143
[QR (WITH EURO-OBD)]
C
D
E
F
G
H
I
J
K
L
MA
EC
2. CHECK HO2S1 POWER SUPPLY CIRCUIT
1. Disconnect heated oxygen sensor 1 harness connector.
2. Turn ignition switch ON.
3. Check voltage between HO2S1 terminal 4 and ground with
CONSULT-II or tester.
OK or NG
OK >> GO TO 4.
NG >> GO TO 3.
3. DETECT MALFUNCTIONING PART
Check the following.
Harness connectors E60, F36
Fuse block (J/B) connector E103
10A fuse
Harness for open or short between heated oxygen sensor 1 and fuse
>> Repair open circuit or short to ground or short to power in harness or connectors.
4. CHECK HO2S1 OUTPUT SIGNAL CIRCUIT FOR OPEN AND SHORT
1. Turn ignition switch OFF.
2. Disconnect ECM harness connector.
3. Check harness continuity between ECM terminal 24 and HO2S1 terminal 1.
Refer to Wiring Diagram.
4. Also 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 HEATED OXYGEN SENSOR 1 HEATER
Refer to EC-144, "
Component Inspection" .
OK or NG
OK >> GO TO 6.
NG >> Replace heated oxygen sensor 1.
PBIB0500E
Voltage: Battery voltage
PBIB0541E
Continuity should exist.
Page 551 of 4555
DTC P0037, P0038 HO2S2 HEATER
EC-147
[QR (WITH EURO-OBD)]
C
D
E
F
G
H
I
J
K
L
MA
EC
Wiring DiagramEBS010MX
TBWA0597E
Page 553 of 4555
![NISSAN X-TRAIL 2005 Service Repair Manual DTC P0037, P0038 HO2S2 HEATER
EC-149
[QR (WITH EURO-OBD)]
C
D
E
F
G
H
I
J
K
L
MA
EC
2. CHECK HO2S2 POWER SUPPLY CIRCUIT
1. Disconnect heated oxygen sensor 2 harness connector.
2. Turn ignition switc NISSAN X-TRAIL 2005 Service Repair Manual DTC P0037, P0038 HO2S2 HEATER
EC-149
[QR (WITH EURO-OBD)]
C
D
E
F
G
H
I
J
K
L
MA
EC
2. CHECK HO2S2 POWER SUPPLY CIRCUIT
1. Disconnect heated oxygen sensor 2 harness connector.
2. Turn ignition switc](/manual-img/5/57403/w960_57403-552.png)
DTC P0037, P0038 HO2S2 HEATER
EC-149
[QR (WITH EURO-OBD)]
C
D
E
F
G
H
I
J
K
L
MA
EC
2. CHECK HO2S2 POWER SUPPLY CIRCUIT
1. Disconnect heated oxygen sensor 2 harness connector.
2. Turn ignition switch ON.
3. Check voltage between HO2S2 terminal 4 and ground with
CONSULT-II or tester.
OK or NG
OK >> GO TO 4.
NG >> GO TO 3.
3. DETECT MALFUNCTIONING PART
Check the following.
Harness connectors E60, F36
Fuse block (J/B) connector E103
10A fuse
Harness for open or short between heated oxygen sensor 2 and fuse
>> Repair open circuit or short to ground or short or power in harness or connectors.
4. CHECK HO2S2 OUTPUT SIGNAL CIRCUIT FOR OPEN AND SHORT
1. Turn ignition switch OFF.
2. Disconnect ECM harness connector.
3. Check harness continuity between ECM terminal 2 and HO2S2 terminal 1.
Refer to Wiring Diagram.
4. Also 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 HEATED OXYGEN SENSOR 2 HEATER
Refer to EC-150, "
Component Inspection" .
OK or NG
OK >> GO TO 6.
NG >> Replace heated oxygen sensor 2.
PBIB0500E
Voltage: Battery voltage
PBIB0541E
Continuity should exist.