Page 2345 of 3189
DescriptionNJEL0004NORMAL OPEN, NORMAL CLOSED AND MIXED TYPE RELAYSNJEL0004S01Relays can mainly be divided into three types: normal open, normal closed and mixed type relays.
SEL881H
TYPE OF STANDARDIZED RELAYSNJEL0004S02
1M 1 Make 2M 2 Make
1T 1 Transfer 1M·1B 1 Make 1 Break
SEL882H
GI
MA
EM
LC
EC
FE
CL
MT
AT
AX
SU
BR
ST
RS
BT
HA
SC
IDX
STANDARDIZED RELAY
Description
EL-9
Page 2346 of 3189
GEL264
STANDARDIZED RELAY
Description (Cont’d)
EL-10
Page 2509 of 3189

System Description/QG and YD Engine Models
with Common Rail
=NJEL0552The rear window defogger system is controlled by the smart entrance control unit. The rear window defogger
operates only for approximately 15 minutes.
Power is supplied at all times
through 20A fuse [No. 7, located in the fuse block (J/B)]
to rear window defogger relay terminal 5 (B7 relay models) or 3 (B6 relay models)
through 10A fuse [No. 13, located in the fuse block (J/B)]
to rear window defogger relay terminal 6 (B6 relay models).
through 10A fuse [No. 12, located in the fuse block (J/B)]
to smart entrance control unit terminal 56.
With the ignition switch in the ON or START position, power is supplied
through 10A fuse [No. 10, located in the fuse block (J/B)]
to the rear window defogger relay terminal 1 and
to smart entrance control unit terminal 29.
Ground is supplied to terminal 5 (with manual A/C) or 1 (with auto A/C) of therear window defogger switch
through body grounds F118 (QG engine models), M28 and M67.
When the rear defogger switch is turned ON, ground is supplied
through terminal 3 (with manual A/C) or 9 (with auto A/C) of the rear defogger switch
to smart entrance control unit terminal 22.
Terminal 31 of smart entrance control unit then supplies ground to the rearwindow defogger relay terminal 2.
With power and ground supplied, the rear window defogger relay is energized.
Power is supplied
through terminals 5 and 7 of the rear window defogger relay (B6 relay models)or
through terminal 3 of the rear window defogger relay (B7 relay models)
to the rear window defogger and door mirror 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.GI
MA
EM
LC
EC
FE
CL
MT
AT
AX
SU
BR
ST
RS
BT
HA
SC
IDX
REAR WINDOW DEFOGGER
System Description/QG and YD Engine Models with Common Rail
EL-173
Page 2510 of 3189

System Description/YD Engine Models without
Common Rail and K9K Engine Models
=NJEL0463The rear window defogger system is controlled by the time control unit. Therear window defogger operates
only for approximately 15 minutes.
Power is supplied at all times
through 20A fuse [No. 7, located in the fuse block (J/B)]
to rear window defogger relay terminal 5 (B7 relay models) or 3 (B6 relay models)
through 10A fuse [No. 13, located in the fuse block (J/B)]
to rear window defogger relay terminal 6 (B6 relay models).
through 15A fuse [No. 5, located in the fuse block (J/B)]
to time control unit terminal 9.
With the ignition switch in the ON or START position, power is supplied
through 10A fuse [No. 10, located in the fuse block (J/B)]
to the rear window defogger relay terminal 1 and
to time control unit terminal 1.
Ground is supplied to terminal 5 of the rear window defogger switch throughbody grounds M28 and M67.
When the rear defogger switch is turned ON, ground is supplied
through terminal 3 of the rear defogger switch
to time control unit terminal 3.
Terminal 13 of time control unit then supplies ground to the rear window defogger relay terminal 2.
With power and ground supplied, the rear window defogger relay is energized.
Power is supplied
through terminals 5 and 7 of the rear window defogger relay (B6 relay models)or
through terminal 3 of the rear window defogger relay (B7 relay models)
to the rear window defogger and door mirror 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/YD Engine Models without Common Rail and K9K Engine Models
EL-174
Page 2515 of 3189

Trouble Diagnoses/QG and YD Engine Models
with Common Rail
NJEL0553TERMINALS AND REFERENCE VALUE FOR SMART
ENTRANCE CONTROL UNIT
NJEL0553S01
TERMINALWIRE
COLORITEM CONDITION DATA (DC)
22 L/YMultifunction switch (Rear window
defogger switch) signalMultifunction switch (Rear window defogger
switch) ON0V
Multifunction switch (Rear window defogger
switch) OFFBattery voltage
29 Y/G IGN power supply — Battery voltage
31 WRear window defogger relay control sig-
nalMultifunction switch (Rear window defogger
switch) ONBattery voltage
Multifunction switch (Rear window defogger
switch) OFF0V
53 B Ground — 0V
56 R/B BAT power supply — Battery voltage
TERMINALS AND REFERENCE VALUE FOR
MULTIFUNCTION SWITCH (REAR WINDOW DEFOGGER
SWITCH)
NJEL0553S02
TERMINALWIRE
COLORITEM CONDITION DATA (DC)
1 B Ground — 0V
9 L/Y Rear window defogger switch signal Rear window defogger switch ON Battery voltage
10 L/R Rear window defogger indicator signal Rear window defogger switch ON Battery voltage
PRELIMINARY CHECKNJEL0553S03First perform the “SELF-DIAG RESULTS” in “SMART ENTRANCE”
with CONSULT-II, when perform the each trouble diagnosis.
GI
MA
EM
LC
EC
FE
CL
MT
AT
AX
SU
BR
ST
RS
BT
HA
SC
IDX
REAR WINDOW DEFOGGER
Trouble Diagnoses/QG and YD Engine Models with Common Rail
EL-179
Page 2518 of 3189
4 CHECK REAR WINDOW DEFOGGER OUTPUT SIGNAL
1. Turn ignition switch to ON position.
2. Check voltage between smart entrance control unit harness connector M194 terminal 31 and ground.
MIIA0085E
MTBL1446
OK or NG
OKCheck the following.
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 smart entrance
control unit.
Rear window defogger relay. Refer to EL-189, “REAR WINDOW DEFOGGER RELAY”.
Rear window defogger filament. Refer to EL-190, “FILAMENT CHECK” and EL-191,
“FILAMENT REPAIR”.
NG GO TO 2.
REAR WINDOW DEFOGGER
Trouble Diagnoses/QG and YD Engine Models with Common Rail (Cont’d)
EL-182
Page 2521 of 3189
REAR WINDOW DEFOGGER INDICATOR LAMP DOES
NOT ILLUMINATE
=NJEL0553S06
1 CHECK POSITION OF IGNITION SWITCH
Is ignition switch ON?
OK or NG
OK GO TO 2.
NG Rear window defogger does not operate if ignition switch is not ON.
2 CHECK OPERATION OF REAR WINDOW DEFOGGER
Does rear window defogger operate when rear window defogger switch is turned ON? (Does fogging disappear?)
OK or NG
OK GO TO 3.
NG EL-183, “Rear Window Defogger Does Not Operate” item.
3 CHECK REAR WINDOW DEFOGGER INDICATOR LAMP SIGNALS
Disconnect Multifunction switch connector. Check voltage between Multifunction switch terminal 10 (L/R) and body ground.
SKIA1433E
MTBL1450
OK or NG
OK Replace Multifunction switch.
NG Malfunction in harness between Multifunction switch and rear window defogger relay.
GI
MA
EM
LC
EC
FE
CL
MT
AT
AX
SU
BR
ST
RS
BT
HA
SC
IDX
REAR WINDOW DEFOGGER
Trouble Diagnoses/QG and YD Engine Models with Common Rail (Cont’d)
EL-185
Page 2522 of 3189

Trouble Diagnoses/YD Engine Models without
Common Rail and K9K Engine Models
=NJEL0465DIAGNOSTIC PROCEDURENJEL0465S01SYMPTOM: 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 13 and ground.
SEL455X
OK or NG
OKCheck the following.
Rear window defogger relay
(Refer to EL-189.)
Rear window defogger circuit
Rear window defogger filament
(Refer to EL-190.)
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 13 and ground.
SEL456X
OK or NG
OK GO TO 3.
NGCheck 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/YD Engine Models without Common Rail and K9K Engine Models
EL-186