NISSAN ALMERA TINO 2001 Service Repair Manual

Wiring DiagramNLEC0550MODELS WITH ECM IN ENGINE COMPARTMENTNLEC0550S04
YEC716
ELECTRICAL LOAD SIGNALQG18DE
Wiring Diagram
EC-536

YEC678
ELECTRICAL LOAD SIGNALQG18DE
Wiring Diagram (Cont'd)
EC-537

MODELS WITH ECM IN CABINNLEC0550S05
YEC907
ELECTRICAL LOAD SIGNALQG18DE
Wiring Diagram (Cont'd)
EC-538

YEC908
ELECTRICAL LOAD SIGNALQG18DE
Wiring Diagram (Cont'd)
EC-539

Diagnostic Procedure Ð Load Signal ÐNLEC0584
1 INSPECTION START
Do you have CONSULT-II?
YesorNo
Ye s©GO TO 2.
No©GO TO 4.
2 CHECK LOAD SIGNAL CIRCUIT OVERALL FUNCTION-I
With CONSULT-II
1. Turn ignition switch ªONº.
2. Check ªLOAD SIGNALº in ªDATA MONITORº mode with CONSULT-II under the following conditions.
SEF954X
OK or NG
OK©GO TO 3.
NG©GO TO 6.
3 CHECK LOAD SIGNAL CIRCUIT OVERALL FUNCTION-II
With CONSULT-II
1. Turn ignition switch ªONº.
2. Check ªLOAD SIGNALº in ªDATA MONITORº mode with CONSULT-II under the following conditions.
SEF955X
OK or NG
OK©INSPECTION END
NG©GO TO 9.
ELECTRICAL LOAD SIGNALQG18DE
Diagnostic Procedure Ð Load Signal Ð
EC-540

4 CHECK LOAD SIGNAL CIRCUIT OVERALL FUNCTION-I
Without CONSULT-II
1. Turn ignition switch ªONº.
2. Check voltage between ECM terminal 50 and ground under the following conditions.
SEF956X
OK or NG
OK©GO TO 5.
NG©GO TO 6.
5 CHECK LOAD SIGNAL CIRCUIT OVERALL FUNCTION-II
Without CONSULT-II
1. Turn ignition switch ªONº.
2. Check voltage between ECM terminal 50 and ground under the following conditions.
SEF957X
OK or NG
OK©INSPECTION END
NG©GO TO 10.
6 CHECK REAR WINDOW DEFOGGER FUNCTION
1. Start engine.
2. Turn ªONº the rear window defogger switch.
3. Check the rear windshield. Is the rear windshield heated up?
YesorNo
Ye s©GO TO 7.
No©Refer to EL-198, ªRear Window Defoggerº.
ELECTRICAL LOAD SIGNALQG18DE
Diagnostic Procedure Ð Load Signal Ð (Cont'd)
EC-541

7 CHEC KREA RWINDO WDEFOGGE RINPU TSIGNA LCIRCUIT
8 DETEC TMALFUNCTIONIN GPART
9 CHEC KHEADLAM PFUNCTION
10 CHEC KHEADLAM PFUNCTION
Diagnostic Procedure Ð Load Signal Ð (Cont'd)

11 CHECK HEADLAMP INPUT SIGNAL CIRCUIT
Without Daytime Light system
1. Stop engine.
2. Disconnect ECM harness connector.
3. Disconnect lighting switch connector.
4. Check harness continuity between ECM terminal 50 and lighting switch connector terminal 10 under the following con-
ditions.
SEF161Z
5. Also check harness for short to ground and short to power.
With Daytime Light system
1. Stop engine.
2. Disconnect ECM harness connector.
3. Disconnect headlamp relay LH connector.
4. Check harness continuity between ECM terminal 50 and headlamp relay LH connector terminal 3 under the following
conditions.
SEF445Z
5. Also check harness for short to ground and short to power.
OK or NG
OK©GO TO 13.
NG©GO TO 12.
12 DETECT MALFUNCTIONING PART
Check the following.
+Harness connectors M49, F43 (where fitted)
+Harness connectors M71, F45 (where fitted)
+Harness connectors M10, E105
+Diode 1
+Harness for open and short between ECM and lighting switch connector
©Repair open circuit or short to ground or short to power in harness or connectors.
13 CHECK INTERMITTENT INCIDENT
Perform ªTROUBLE DIAGNOSIS FOR INTERMITTENT INCIDENTº, EC-145.
©INSPECTION END
ELECTRICAL LOAD SIGNALQG18DE
Diagnostic Procedure Ð Load Signal Ð (Cont'd)
EC-543

DiagnosticProcedur eÐ Heate rContro lPanel
1 CHEC KCIRCUI TOVERAL LFUNCTION
SEF620Y
2 CHEC KINPU TSIGNA LCIRCUIT
3 DETEC TMALFUNCTIONIN GPART
Diagnostic Procedure Ð Heater Control Panel (Fan Switch) Ð

Wiring DiagramNLEC0466MODELS WITH ECM IN ENGINE COMPARTMENTNLEC0466S01
YEC679
MI & DATA LINK CONNECTORSQG18DE
Wiring Diagram
EC-545