2003 NISSAN ALMERA N16 DIAGRAM

EC-682
[QG (WITHOUT EURO-OBD)]
POWER STEERING PRESSURE SENSOR
6. CHECK PSP SENSOR GROUND CIRCUIT FOR OPEN AND SHORT
1. Turn ignition switch “OFF”.
2. Disconnect ECM harness connector.
3. Check harness continuity between ECM terminal 57 and PSP sensor terminal 1.
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.
7. CHECK PSP SENSOR INPUT SIGNAL CIRCUIT FOR OPEN AND SHORT
1. Check harness continuity between ECM terminal 12 and PSP sensor terminal 2.
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 PSP SENSOR
Refer to EC-682, "
Component Inspection" .
OK or NG
OK >> GO TO 9.
NG >> Replace PSP sensor.
9. CHECK INTERMITTENT INCIDENT
Refer to EC-485, "
TROUBLE DIAGNOSIS FOR INTERMITTENT INCIDENT" .
>>INSPECTION END
Component InspectionEBS00KLK
POWER STEERING PRESSURE SENSOR
1. Reconnect all harness connectors disconnected.
2. Start engine and let it idle.
3. Check voltage between ECM terminal 12 and ground under the
following conditions.Continuity should exist.
Continuity should exist.
Condition Voltage
Steering wheel is being turned fully. 0.5 - 4.0V
Steering wheel is not being turned. 0.4 - 0.8V
MBIB0025E

IVT CONTROL SOLENOID VALVE
EC-685
[QG (WITHOUT EURO-OBD)]
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Wiring DiagramEBS00KLN
YEC318A

IVT CONTROL SOLENOID VALVE
EC-687
[QG (WITHOUT EURO-OBD)]
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2.CHECK IVT CONTROL SOLENOID VALVE POWER SUPPLY CIRCIUT
1. Turn ignition switch “OFF”.
2. Disconnect intake valve timing control solenoid valve harness
connector.
3. Turn ignition switch “ON”.
4. Check voltage between intake valve timing control solenoid
valve terminal 1 and ground with CONSULT-II or tester.
OK or NG
OK >> GO TO 4.
NG >> GO TO 3.
3.DETECT MALFUNCTION PART
Check the following.
●Harness connectors E225, F43
●Harness for open or short between intake valve timing control solenoid valve and ECM relay
>> Repair open circuit or short to ground or short to power in harness or connectors.
4.CHECK IVT CONTROL SOLENOID VALVE OUTPUT SIGNAL CIRCUIT FOR OPEN AND SHORT
1. Turn ignition switch “OFF”.
2. Disconnect ECM harness connector.
3. Check harness continuity between ECM terminal 62 and intake valve timing control solenoid valve termi-
nal 2. 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 INTAKE VALVE TIMING CONTROL SOLENOID VALVE
Refer to EC-688, "
Component Inspection" .
OK or NG
OK >> GO TO 6.
NG >> Replace intake valve timing control solenoid valve.
MBIB0106E
Voltage: Battery voltage
PBIB0285E
Continuity should exist.

EC-690
[QG (WITHOUT EURO-OBD)]
PNP SWITCH
Wiring Diagram
EBS00KLT
YEC319A

EC-692
[QG (WITHOUT EURO-OBD)]
PNP SWITCH
2. CHECK PNP SWITCH GROUND CIRCUIT FOR OPEN AND SHORT
1. Turn ignition switch “OFF”.
2. Disconnect PNP switch harness connector.
3. Check harness continuity between PNP switch terminal 2 and
body ground. Refer to Wiring Diagram.
4. Also check harness for short to power.
OK or NG
OK >> GO TO 3.
NG >> Repair open circuit or short to power in harness or con-
nectors.
3. CHECK PNP SWITCH INPUT SIGNAL CIRCUIT FOR OPEN AND SHORT
1. Disconnect ECM harness connector.
2. Check harness continuity between ECM terminal 102 and PNP switch terminal 1.
Refer to Wiring Diagram.
3. 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 PNP SWITCH
Refer to AT-406, "
ON-VEHICLE SERVICE" (A/T models) or MT-21 (M/T models).
OK or NG
OK >> GO TO 5.
NG >> Replace PNP switch.
5. CHECK INTERMITTENT INCIDENT
Refer to EC-485, "
TROUBLE DIAGNOSIS FOR INTERMITTENT INCIDENT" .
>>INSPECTION END Continuity should exist.
MBIB0253E
Continuity should exist.

EC-694
[QG (WITHOUT EURO-OBD)]
INJECTOR CIRCUIT
Wiring Diagram
EBS00KLX
YEC308A

INJECTOR CIRCUIT
EC-697
[QG (WITHOUT EURO-OBD)]
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3.CHECK INJECTOR POWER SUPPLY CIRCUIT
1. Turn ignition switch “OFF”.
2. Disconnect injector harness connector.
3. Turn ignition switch “ON”.
4. Check voltage between injector terminal 1 and ground with
CONSULT-II or tester.
OK or NG
OK >> GO TO 5.
NG >> GO TO 4.
4.DETECT MALFUNCTIONING PART
Check the following.
●Harness connectors M202, F115
●Fuse block (J/B) connector M1
●10A fuse
●Harness for open or short between injector and fuse
>> Repair open circuit or short to ground or short to power in harness or connectors.
5.CHECK INJECTOR OUTPUT SIGNAL CIRCUIT FOR OPEN AND SHORT
1. Turn ignition switch “OFF”.
2. Disconnect ECM harness connector.
3. Check harness continuity between injector terminal 2 and ECM terminals 22, 23, 41, 42.
Refer to Wiring Diagram.
4. Also check harness for short to ground and short to power.
OK or NG
OK >> GO TO 6.
NG >> Repair open circuit or short to ground or short to power in harness or connectors.
6.CHECK INJECTOR
Refer to EC-698, "
Component Inspection" .
OK or NG
OK >> GO TO 7.
NG >> Replace injector.
MBIB0101E
Voltage: Battery voltage
PBIB0582E
Continuity should exist.

EC-700
[QG (WITHOUT EURO-OBD)]
FUEL PUMP CIRCUIT
Wiring Diagram
EBS00KM3
YEC309A