2001 NISSAN ALMERA TINO wiring diagram

MODELS WITH ECM IN CABINNLEC0647S02
YEC858
DTC P0100 MASS AIR FLOW SENYD22DDTI
Wiring Diagram (Cont'd)
EC-1146

3 CHECK MAFS GROUND CIRCUIT FOR OPEN AND SHORT
1. Turn ignition switch ªOFFº.
2. Loosen and retighten engine ground screws.
SEF380Y
3. Check harness continuity between mass air flow sensor terminal 3 and engine ground. 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 5.
NG©GO TO 4.
4 DETECT MALFUNCTIONING PART
Check harness for open or short between mass air flow sensor and ECM.
©Repair open circuit or short to ground or short to power in harness or connectors.
5 CHECK MAFS INPUT SIGNAL CIRCUIT FOR OPEN AND SHORT
1. Disconnect ECM harness connector.
2. Check harness continuity between mass air flow sensor terminal 1 and ECM terminal 224. Refer to Wiring Diagram.
Continuity should exist.
3. 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.
DTC P0100 MASS AIR FLOW SENYD22DDTI
Diagnostic Procedure (Cont'd)
EC-1148

Wiring DiagramNLEC0652
YEC723
DTC P0115 COOLANT TEMP SENYD22DDTI
Wiring Diagram
EC-1152

Diagnostic ProcedureNLEC0653
1 CHECK ECTS POWER SUPPLY CIRCUIT
1. Turn ignition switch ªOFFº.
2. Disconnect engine coolant temperature sensor harness connector.
SEF750Z
3. Turn ignition switch ªONº.
4. Check voltage between ECTS terminal 2 and ground with CONSULT-II or tester.
SEF401Y
OK or NG
OK©GO TO 2.
NG©Repair open circuit or short to ground or short to power in harness or connectors.
2 CHECK ECTS GROUND CIRCUIT FOR OPEN AND SHORT
1. Turn ignition switch ªOFFº.
2. Check harness continuity between ECTS terminal 1 and engine ground. Refer to Wiring Diagram.
Continuity should exist.
3. Also check harness for short to ground and short to power.
OK or NG
OK©GO TO 4.
NG©GO TO 3.
3 DETECT MALFUNCTIONING PART
Check the following harness for open or short between ECM and engine coolant temperature sensor.
©Repair open circuit or short to ground or short to power in harness or connectors.
DTC P0115 COOLANT TEMP SENYD22DDTI
Diagnostic Procedure
EC-1153

Wiring DiagramNLEC0684MODELS WITH ECM IN ENGINE COMPARTMENTNLEC0684S01
YEC727
DTC P0120 ACCEL POS SENSORYD22DDTI
Wiring Diagram
EC-1157

MODELS WITH ECM IN CABINNLEC0684S02
YEC859
DTC P0120 ACCEL POS SENSORYD22DDTI
Wiring Diagram (Cont'd)
EC-1158

5 CHECK ACCELERATOR POSITION SENSOR GROUND CIRCUIT FOR OPEN AND SHORT
1. Turn ignition switch ªOFFº.
2. Loosen and retighten engine ground screw.
SEF380Y
3. Check harness continuity between accelerator work unit terminal 4 and engine ground. 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 7.
NG©GO TO 6.
6 DETECT MALFUNCTIONING PART
Check the following.
+Harness connectors F24, M50 (where fitted)
+Harness connectors M72, F44 (where fitted)
+Harness for open or short between ECM and accelerator work unit
©Repair open circuit or short to ground or short to power in harness or connectors.
7 CHECK ACCELERATOR POSITION SENSOR INPUT SIGNAL CIRCUIT FOR OPEN AND SHORT
1. Disconnect ECM harness connector.
2. Check harness continuity between ECM terminal 434 and accelerator work unit terminal 2. Refer to Wiring Diagram.
Continuity should exist.
3. Also check harness for short to ground and short to power.
OK or NG
OK©GO TO 9.
NG©GO TO 8.
8 DETECT MALFUNCTIONING PART
Check the following.
+Harness connectors F24, M50 (where fitted)
+Harness connectors M72, F44 (where fitted)
+Harness for open or short between ECM and accelerator work unit
©Repair open circuit or short to ground or short to power in harness or connectors.
DTC P0120 ACCEL POS SENSORYD22DDTI
Diagnostic Procedure (Cont'd)
EC-1162

11 CHECK ACCELERATOR POSITION SWITCH POWER SUPPLY CIRCUIT
1. Turn ignition switch ªOFFº.
2. Disconnect accelerator work unit harness connector.
SEF749Z
3. Turn ignition switch ªONº.
4. Check voltage between accelerator work unit terminal 3 and ground with CONSULT-II or tester.
SEF912Y
OK or NG
OK©GO TO 13.
NG©GO TO 12.
12 DETECT MALFUNCTIONING PART
Check the following.
+Harness connectors F24, M50 (where fitted)
+Harness connectors M72, F44 (where fitted)
+Harness for open or short between accelerator work unit and ECM
©Repair harness or connectors.
13 CHECK ACCELERATOR POSITION SWITCH GROUND CIRCUIT FOR OPEN AND SHORT
1. Turn ignition switch ªOFFº.
2. Disconnect ECM harness connector.
3. Check harness continuity between accelerator work unit terminal 1 and ECM terminal 426. 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 15.
NG©GO TO 14.
DTC P0120 ACCEL POS SENSORYD22DDTI
Diagnostic Procedure (Cont'd)
EC-1164