2001 NISSAN ALMERA window

+to the rear window defogger.
The rear window defogger has an independent ground.
With power and ground supplied, the rear window defogger filaments heat and defog the rear window.
When the system is activated, the rear window defogger indicator illuminates in the rear window defogger
switch.
REAR WINDOW DEFOGGER
System Description/Sedan (Cont'd)
EL-241

Wiring Diagram Ð DEF Ð/Sedan=NJEL0379LHD MODELSNJEL0379S01
HEL052B
REAR WINDOW DEFOGGER
Wiring Diagram Ð DEF Ð/Sedan
EL-242

HEL053B
REAR WINDOW DEFOGGER
Wiring Diagram Ð DEF Ð/Sedan (Cont'd)
EL-243

RHD MODELSNJEL0379S02
HEL395B
REAR WINDOW DEFOGGER
Wiring Diagram Ð DEF Ð/Sedan (Cont'd)
EL-244

HEL396B
REAR WINDOW DEFOGGER
Wiring Diagram Ð DEF Ð/Sedan (Cont'd)
EL-245

Trouble Diagnoses/SedanNJEL0380DIAGNOSTIC PROCEDURENJEL0380S01SYMPTOM: Rear window defogger does not activate, or does
not go off after activating.
1 CHECK REAR WINDOW DEFOGGER OUTPUT SIGNAL
1. Turn ignition switch to ON position.
2. Check voltage between time control unit harness terminal 27 and ground.
SEL994W
OK or NG
OK©Check the following.
+Rear window defogger relay
(Refer to EL-255.)
+Rear window defogger circuit
+Rear window defogger filament
(Refer to EL-256.)
NG©GO TO 2.
2 CHECK DEFOGGER RELAY COIL SIDE CIRCUIT
1. Disconnect control unit connector.
2. Turn ignition switch to ON position.
3. Check voltage between time control unit terminal 27 and ground.
SEL995W
OK or NG
OK©GO TO 3.
NG©Check the following.
+10A fuse [No. 10, located in the fuse block (J/B)]
+Rear window defogger relay
+Harness for open or short between 10A fuse [No. 10, located in the fuse block (J/B)]
and rear window defogger relay
+Harness for open or short between rear window defogger relay and time control unit
REAR WINDOW DEFOGGER
Trouble Diagnoses/Sedan
EL-246

3 CHECK REAR WINDOW DEFOGGER SWITCH INPUT SIGNAL
Check continuity between time control unit terminal 35 and ground.
SEL996W
OK or NG
OK©GO TO 4.
NG©Check the following.
+Rear window defogger switch
(Refer to EL-255.)
+Harness for open or short between time control unit and rear window defogger switch
+Rear window defogger switch ground circuit
4 CHECK POWER SUPPLY AND IGNITION INPUT SIGNAL
Check voltage between time control unit terminals 1 and 17 and ground.
SEL997W
OK or NG
OK©GO TO 5.
NG©Check the following.
+10A fuse [No. 10 or No. 12, located in the fuse block (J/B)]
+Harness for open or short between time control unit and fuse
REAR WINDOW DEFOGGER
Trouble Diagnoses/Sedan (Cont'd)
EL-247

5 CHECK CONTROL UNIT GROUND CIRCUIT
Check continuity between time control unit terminal 16 and ground.
SEL992W
Ye s©Replace time control unit.
No©Repair harness or connectors.
REAR WINDOW DEFOGGER
Trouble Diagnoses/Sedan (Cont'd)
EL-248