2001 INFINITI QX4 Factory Service Manual

Page 1337 of 2395

INFINITI QX4 2001  Factory Service Manual When the rear window defogger switch is turned ON, ground is supplied
Ithrough terminal 2 of the rear window defogger switch (with navigation system), or
Ithrough terminal 31 of A/C auto amp. (without

Page 1338 of 2395

INFINITI QX4 2001  Factory Service Manual Wiring Diagram Ð DEF ÐNBEL0074
MEL815L
GI
MA
EM
LC
EC
FE
AT
TF
PD
AX
SU
BR
ST
RS
BT
HA
SC
IDX
REAR WINDOW DEFOGGER
Wiring Diagram Ð DEF Ð
EL-153

Page 1339 of 2395

INFINITI QX4 2001  Factory Service Manual MEL816L
REAR WINDOW DEFOGGER
Wiring Diagram Ð DEF Ð (Contd)
EL-154

Page 1340 of 2395

INFINITI QX4 2001  Factory Service Manual Trouble DiagnosesNBEL0075DIAGNOSTIC PROCEDURENBEL0075S01SYMPTOM: Rear window defogger does not activate, or does
not go off after activating.
1 CHECK REAR WINDOW DEFOGGER OUTPUT SIGNAL
1. Turn ignitio

Page 1341 of 2395

INFINITI QX4 2001  Factory Service Manual 3 CHECK REAR WINDOW DEFOGGER SWITCH INPUT SIGNAL
Check continuity between smart entrance control unit terminal 39 and ground.
SEL386X
OK or NG
OK©GO TO 4.
NG©Check the following.
IRear window defogg

Page 1342 of 2395

INFINITI QX4 2001  Factory Service Manual 5 CHECK SMART ENTRANCE CONTROL UNIT GROUND CIRCUIT
Check continuity between smart entrance control unit terminal 16 and ground.
SEL388X
OK or NG
OK©Replace smart entrance control unit.
NG©Repair har

Page 1343 of 2395

INFINITI QX4 2001  Factory Service Manual SEL265
2. If a filament is burned out, circuit tester registers 0 or 12 volts.
3. To locate burned out point, move probe to left and right along
filament. Test needle will swing abruptly when probe pa

Page 1344 of 2395

INFINITI QX4 2001  Factory Service Manual SEL012D
4. After repair has been completed, check repaired wire for con-
tinuity. This check should be conducted 10 minutes after silver
composition is deposited.
Do not touch repaired area while test