wiring NISSAN ALMERA N16 2003 Electronic Service Manual

DTC U1000, U1001 CAN COMMUNICATION LINE
EC-117
[QG (WITH EURO-OBD)]
C
D
E
F
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MA
EC
Wiring DiagramEBS00K4A
YEC277A

DTC P0011 IVT CONTROL
EC-121
[QG (WITH EURO-OBD)]
C
D
E
F
G
H
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L
MA
EC
WITH GST
Follow the procedure “WITH CONSULT-II” above.
Diagnostic ProcedureEBS00K4G
1.CHECK CRANKSHAFT POSITION SENSOR (POS)
Refer to EC-238, "
Component Inspection" .
OK or NG
OK >> GO TO 2.
NG >> Replace crankshaft position sensor (POS).
2.CHECK CAMSHAFT POSITION SENSOR (PHASE)
Refer to EC-244, "
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-109, "
TROUBLE DIAGNOSIS FOR INTERMITTENT INCIDENT" .
For wiring diagram refer to EC-235, "
Wiring Diagram" for CKP sensor (POS) and EC-241, "Wiring Diagram"
for CMP sensor (PHASE).
>>INSPECTION END
PBIB0565E

EC-124
[QG (WITH EURO-OBD)]
DTC P0031, P0032 HO2S1 HEATER
Wiring Diagram
EBS00K4L
YEC282A

EC-126
[QG (WITH EURO-OBD)]
DTC P0031, P0032 HO2S1 HEATER
2. DETECT MALFUNCTIONING PART
Check the following.
●Harness connectors M182, E251
●Harness connectors E75, F36
●Fuse block (J/B) connector M1
●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.
3. 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 4.
NG >> Repair open circuit or short to ground or short to power in harness or connectors.
4. CHECK HEATED OXYGEN SENSOR 1 HEATER
Refer to EC-127, "
Component Inspection" .
OK or NG
OK >> GO TO 5.
NG >> Replace heated oxygen sensor 1.
5. CHECK INTERMITTENT INCIDENT
Refer to EC-109, "
TROUBLE DIAGNOSIS FOR INTERMITTENT INCIDENT" .
>>INSPECTION END Continuity should exist.

EC-130
[QG (WITH EURO-OBD)]
DTC P0037, P0038 HO2S2 HEATER
Wiring Diagram
EBS00K4T
YEC284A

EC-132
[QG (WITH EURO-OBD)]
DTC P0037, P0038 HO2S2 HEATER
2. DETECT MALFUNCTIONING PART
Check the following.
●Harness connectors M182, E251
●Harness connectors E75, F36
●Fuse block (J/B) connector M1
●10A fuse
●Harness for open or short between heated oxygen sensor 2 and fuse
>> Repair open circuit or short to ground or short to power in harness or connectors.
3. 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 4.
NG >> Repair open circuit or short to ground or short to power in harness or connectors.
4. CHECK HEATED OXYGEN SENSOR 2 HEATER
Refer to EC-133, "
Component Inspection" .
OK or NG
OK >> GO TO 5.
NG >> Replace heated oxygen sensor 2.
5. CHECK INTERMITTENT INCIDENT
Refer to EC-109, "
TROUBLE DIAGNOSIS FOR INTERMITTENT INCIDENT" .
>>INSPECTION END Continuity should exist.

EC-136
[QG (WITH EURO-OBD)]
DTC P0102, P0103 MAF SENSOR
Wiring Diagram
EBS00K51
YEC278A

EC-138
[QG (WITH EURO-OBD)]
DTC P0102, P0103 MAF SENSOR
4. CHECK MAF SENSOR POWER SUPPLY CIRCUIT
1. Disconnect MAF sensor harness connector.
2. Turn ignition switch “ON”.
3. Check voltage between MAF sensor terminals 2, 4 and ground
with CONSULT-II or tester.
OK or NG
OK >> GO TO 6.
NG >> GO TO 5.
5. DETECT MALFUNCTIONING PART
Check the following.
●Harness connectors E225, F43
●Harness for open or short between mass air flow sensor and ECM
●Harness for open or short between mass air flow sensor and ECM relay
>> Repair open circuit or short to ground or short to power in harness or connectors.
6. CHECK MAF SENSOR GROUND CIRCUIT FOR OPEN AND SHORT
1. Turn ignition switch “OFF”.
2. Disconnect ECM harness connector.
3. Check harness continuity between MAF sensor terminal 3 and ECM terminal 67.
Refer to Wiring Diagram.
4. Also check harness for short to ground and short to power.
OK or NG
OK >> GO TO 7.
NG >> Repair open circuit or short to ground or short to power in harness or connectors.
MBIB0096E
Terminal Voltage
2 Approximately 5V
4 Battery voltage
PBIB0076E
Continuity should exist.

DTC P0102, P0103 MAF SENSOR
EC-139
[QG (WITH EURO-OBD)]
C
D
E
F
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MA
EC
7.CHECK MAF SENSOR INPUT SIGNAL CIRCUIT FOR OPEN AND SHORT
1. Check harness continuity between MAF sensor terminal 1 and ECM terminal 50.
Refer to Wiring Diagram.
2. Also check harness for short to ground and short to power.
OK or NG
OK >> GO TO 8.
NG >> Repair open circuit or short to ground or short to power in harness or connectors.
8.CHECK MASS AIR FLOW SENSOR
Refer to EC-139, "
Component Inspection" .
OK or NG
OK >> GO TO 9.
NG >> Replace mass air flow sensor.
9.CHECK INTERMITTENT INCIDENT
Refer to EC-109, "
TROUBLE DIAGNOSIS FOR INTERMITTENT INCIDENT" .
>>INSPECTION END
Component InspectionEBS00K53
MASS AIR FLOW SENSOR
1. Reconnect harness connectors disconnected.
2. Start engine and warm it up to normal operating temperature.
3. Check voltage between ECM terminal 50 (Mass air flow sensor
signal) and ground.
*: Check for liner voltage rise in response to engine being increased to about
4,000 rpm.
4. If the voltage is out of specification, proceed the following.
a. Turn ignition switch “OFF”.
b. Disconnect mass air flow sensor harness connector and reconnect it again.
c. Perform steps 2 and 3 again.
5. If NG, remove mass air flow sensor from air duct. Check hot film for damage or dust.
6. If NG, clean or replace mass air flow sensor.
Removal and InstallationEBS00K54
MASS AIR FLOW SENSOR
Refer to EM-14, "AIR CLEANER AND AIR DUCT" . Continuity should exist.
Condition Voltage V
Ignition switch “ON” (Engine stopped.) Approx. 1.0
Idle (Engine is warmed-up to normal operating
temperature.)1.0 - 1.7
2,500 rpm (Engine is warmed-up to normal
operating temperature.)1.5 - 2.1
Idle to about 4,000 rpm* 1.0 - 1.7 to Approx. 4.0
MBIB0017E

DTC P0112, P0113 IAT SENSOR
EC-141
[QG (WITH EURO-OBD)]
C
D
E
F
G
H
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MA
EC
Wiring DiagramEBS00K58
YEC279A