2001 NISSAN ALMERA TINO wiring diagram

Diagnostic ProcedureNLEC0142
1 CHECK POWER SUPPLY
1. Turn ignition switch ªOFFº.
2. Disconnect heated oxygen sensor 1 (front) harness connector.
SEF012XA
3. Turn ignition switch ªONº.
4. Check voltage between terminal 1 and ground with CONSULT-II or tester.
SEF934X
OK or NG
OK©GO TO 3.
NG©GO TO 2.
2 DETECT MALFUNCTIONING PART
Check the following.
+Harness connectors F38, M50 (where fitted)
+Harness connectors F44, M72 (where fitted)
+10A fuse
+Harness for open or short between heated oxygen sensor 1 (front) and fuse
©Repair harness or connectors.
3 CHECK OUTPUT SIGNAL CIRCUIT
1. Turn ignition switch ªOFFº.
2. Disconnect ECM harness connector.
3. Check harness continuity between heated oxygen sensor 1 (front) harness connector terminal 3 and ECM terminal 4.
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 4.
NG©Repair open circuit or short to ground or short to power in harness or connectors.
DTC P0135 HEATED OXYGEN SENSOR 1 (FRONT) HEATERQG18DE
Diagnostic Procedure
EC-225

Wiring DiagramNLEC0150MODELS WITH ECM IN ENGINE COMPARTMENTNLEC0150S03
YEC693
DTC P0137 HEATED OXYGEN SENSOR 2 (REAR)
(MIN. VOLTAGE MONITORING)
QG18DE
Wiring Diagram
EC-230

MODELS WITH ECM IN CABINNLEC0150S04
YEC879
DTC P0137 HEATED OXYGEN SENSOR 2 (REAR)
(MIN. VOLTAGE MONITORING)
QG18DE
Wiring Diagram (Cont'd)
EC-231

3 CHECK INPUT SIGNAL CIRCUIT
1. Turn ignition switch ªOFFº.
2. Disconnect heated oxygen sensor 2 (rear) harness connector and ECM harness connector.
SEF639Z
3. Check harness continuity between ECM terminal 63 and heated oxygen sensor 2 (rear) harness connector terminal 1.
Refer to wiring diagram.
Continuity should exist.
4. Check harness continuity between ECM terminal 63 [or heated oxygen sensor 2 (rear) harness connector terminal 1]
and ground.
Continuity should not exist.
5. Also check harness for short to ground and short to power.
OK or NG
OK©GO TO 5.
NG©GO TO 4.
4 DETECT MALFUNCTIONING PART
Check the harness for open or short between heated oxygen sensor 2 (rear) and ECM.
©Repair open circuit or short to ground or short to power in harness or connectors.
5 CHECK GROUND CIRCUIT
1. Check harness continuity between heated oxygen sensor 2 (rear) harness connector terminal 4 and body ground.
Refer to wiring diagram.
Continuity should exist.
2. 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 HEATED OXYGEN SENSOR 2 (REAR)
Refer to ªComponent Inspectionº, EC-235.
OK or NG
OK©GO TO 7.
NG©Replace heated oxygen sensor 2 (rear).
7 CHECK INTERMITTENT INCIDENT
Perform ªTROUBLE DIAGNOSIS FOR INTERMITTENT INCIDENTº, EC-145.
©INSPECTION END
DTC P0137 HEATED OXYGEN SENSOR 2 (REAR)
(MIN. VOLTAGE MONITORING)
QG18DE
Diagnostic Procedure (Cont'd)
EC-234

Wiring DiagramNLEC0159MODELS WITH ECM IN ENGINE COMPARTMENTNLEC0159S03
YEC693
DTC P0138 HEATED OXYGEN SENSOR 2 (REAR)
(MAX. VOLTAGE MONITORING)
QG18DE
Wiring Diagram
EC-240

MODELS WITH ECM IN CABINNLEC0159S04
YEC879
DTC P0138 HEATED OXYGEN SENSOR 2 (REAR)
(MAX. VOLTAGE MONITORING)
QG18DE
Wiring Diagram (Cont'd)
EC-241

3 CHECK INPUT SIGNAL CIRCUIT
1. Disconnect heated oxygen sensor 2 (rear) harness connector and ECM harness connector.
2. Check harness continuity between ECM terminal 63 and heated oxygen sensor 2 (rear) harness connector terminal 1.
Refer to wiring diagram.
Continuity should exist.
3. Check harness continuity between ECM terminal 63 [or heated oxygen sensor 2 (rear) harness connector terminal 1]
and ground.
Continuity should not exist.
4. Also check harness for short to ground and short to power.
OK or NG
OK©GO TO 5.
NG©GO TO 4.
4 DETECT MALFUNCTIONING PART
Check the harness for open or short between ECM and heated oxygen sensor 2 (rear).
©Repair open circuit or short to ground or short to power in harness or connectors.
5 CHECK GROUND CIRCUIT
1. Check harness continuity between heated oxygen sensor 2 (rear) harness connector terminal 4 and engine ground.
Refer to wiring diagram.
Continuity should exist.
2. Also check harness for short to power.
OK or NG
OK©GO TO 6.
NG©Repair open circuit or short to power in harness or connectors.
6 CHECK HEATED OXYGEN SENSOR 2 (REAR)
Refer to ªComponent Inspectionº, EC-244.
OK or NG
OK©GO TO 7.
NG©Replace heated oxygen sensor 2 (rear).
7 CHECK INTERMITTENT INCIDENT
Perform ªTROUBLE DIAGNOSIS FOR INTERMITTENT INCIDENTº, EC-145.
©INSPECTION END
SEF662Y
Component InspectionNLEC0161HEATED OXYGEN SENSOR 2 (REAR)NLEC0161S01With CONSULT-II
1) Start engine and drive vehicle at a speed of more than 70 km/h
(43 MPH) for 2 consecutive minutes..
2) Stop vehicle with engine running.
3) Select ªFUEL INJECTIONº in ªACTIVE TESTº mode, and
select ªHO2S2 (B1)º as the monitor item with CONSULT-II.
4) Check ªHO2S2 (B1)º at idle speed when adjusting ªFUEL
INJECTIONº to±25%.
ªHO2S2 (B1)º should be above 0.68V at least once when
DTC P0138 HEATED OXYGEN SENSOR 2 (REAR)
(MAX. VOLTAGE MONITORING)
QG18DE
Diagnostic Procedure (Cont'd)
EC-244

Wiring DiagramNLEC0168MODELS WITH ECM IN ENGINE COMPARTMENTNLEC0168S03
YEC693
DTC P0139 HEATED OXYGEN SENSOR 2 (REAR)
(RESPONSE MONITORING)
QG18DE
Wiring Diagram
EC-249