2003 NISSAN X-TRAIL relay

REAR WINDOW DEFOGGER
GW-25
C
D
E
F
G
H
J
K
L
MA
B
GW

4. CHECK REAR WINDOW DEFOGGER RELAY GROUND CIRCUIT
1. Turn ignition switch OFF.
2. Installation rear window defogger relay.
3. Turn ignition switch ON.
4. Check voltage between time control unit connector M31 terminal
27 and ground.
OK or NG
OK >> Rear window defogger relay power supply is OK.
NG >> GO TO 5.
5. CHECK HARNESS CONTINUITY
1. Turn ignition switch OFF.
2. Disconnect time control unit connector and rear window defogger relay.
3. Check continuity between time control unit connector M31 termi-
nal 27 and rear window defogger relay connector B29 terminal
2.
OK or NG
OK >> Rear window defogger relay power supply is OK.
NG >> Repair or replace harness between time control unit and
rear window defogger relay.
Time Control Unit Power Supply and Ground CheckEIS008AM
1. CHECK FUSE

Check 10A fuse [No. 5, located in fuse block (J/B)]

Check 10A fuse [No. 28, located in fuse block (J/B)]
NOTE:
Refer to GW-17, "
Component Parts and Harness Connector Location"
OK or NG
OK >> GO TO 2.
NG >> If fuse is blown, be sure to eliminate cause of malfunction before installing new fuse. Refer to PG-
2, "POWER SUPPLY ROUTING"
27 (G/W) - Ground : Battery voltage
PIIA9550E
27 (G/W) - 2 (G/W) : Continuity should exist.
PIIA9551E

REAR WINDOW DEFOGGER
GW-27
C
D
E
F
G
H
J
K
L
MA
B
GW

2. CHECK REAR WINDOW DEFOGGER SWITCH CIRCUIT
1. Turn ignition switch OFF.
2. Disconnect time control unit and rear window defogger switch (without auto A/C) or A/C auto amp, (with
auto A/C) connector.
3.(Without auto A/C)
Check continuity between time control unit connector M31 termi-
nal 35 and rear window defogger switch connector M50 terminal
1.
(With auto A/C)
Check continuity between time control unit connector M31 termi-
nal 35 and A/C auto amp, connector M53 terminal 22.
OK >> GO TO 3.
NG >> Repair or replace harness between time control unit and
rear window defogger relay (without auto A/C) or A/C
auto amp, (with auto A/C).
3. CHECK TIME CONTROL UNIT OUTPUT SIGNAL
1. Connect time control unit connector.
2. Turn ignition switch ON.
3. Check voltage between time control unit connector M31 terminal
35 and ground.
OK or NG
OK >>
GO TO 4.(without auto A/C)

Check A/C auto amp.(with auto A/C). Refer to AT C - 3 4
NG >> Replace time control unit.35 (LG/B) - 1 (LG/B) : Continuity should exist.
PIIA9552E
35 (LG/B) - 22 (LG/B) : Continuity should exist.
PIIA9553E
35 (LG/B) - Ground : Battery voltage
PIIA9554E

GW-28
REAR WINDOW DEFOGGER

4. CHECK REAR WINDOW DEFOGGER SWITCH
Rear window defogger switch operate, check continuity between rear window defogger switch connector M50
terminal 1 and 2.
OK or NG
OK >> GO TO 5.
NG >> Replace rear window defogger switch.
5. CHECK REAR WINDOW DEFOGGER SWITCH GROUND
Check continuity between rear window defogger switch connector
M50 terminal 2 and ground.
OK or NG
OK >> Check the condition of the harness and the connector.
NG >> Repair or replace harness between rear window defog-
ger switch and ground.
Rear Window Defogger Relay Power Supply Check 2EIS008AO
1. CHECK FUSE

Check 10A fuse [No. 5, located in fuse block (J/B)]

Check 20A fuse [No. 25, located in fuse block (J/B)]
NOTE:
Refer to GW-17, "
Component Parts and Harness Connector Location"
OK or NG
OK >> GO TO 2.
NG >> If fuse is blown, be sure to eliminate cause of malfunction before installing new fuse. Refer to PG-
2, "POWER SUPPLY ROUTING"
2. CHECK REAR WINDOW DEFOGGER RELAY POWER SUPPLY CIRCUIT
1. Turn ignition switch OFF.
2. Remove rear window defogger relay.
3. Turn ignition switch ON.
4. Check voltage between rear window defogger relay connector
B6 terminal 1, 3 and ground.
OK or NG
OK >> GO TO 3.
NG >> Repair or replace harness between fuse block (J/B) and
rear window defogger relay.
Connector Terminal Condition Continuity
M50 1 2Rear window: ON Yes
Defogger switch: OFF No
PIIA9555E
2 (B) - Ground : Continuity should exist.
PIIA9556E
1 (G/Y) - Ground : Battery voltage
3 (L/B) - Ground : Battery voltage
PIIA9557E

REAR WINDOW DEFOGGER
GW-29
C
D
E
F
G
H
J
K
L
MA
B
GW

3. CHECK REAR WINDOW DEFOGGER RELAY
Check continuity between rear window defogger relay terminal 3 and 5, 6 and 7.
OK or NG
OK >> GO TO 4.
NG >> Replace rear window defogger relay.
4. CHECK REAR WINDOW DEFOGGER RELAY GROUND CIRCUIT
1. Turn ignition switch OFF.
2. Installation rear window defogger relay.
3. Turn ignition switch ON.
4. Check voltage between time control unit connector M31 terminal
27 and ground.
OK or NG
OK >> Rear window defogger power supply circuit is OK.
NG >> GO TO 5.
5. CHECK HARNESS CONTINUITY
1. Turn ignition switch OFF.
2. Disconnect time control unit connector and rear window defogger relay.
3. Check continuity between time control unit connector M31 termi-
nal 27 and rear defogger relay connector B6 terminal 2.
OK or NG
OK >> Rear window defogger relay power supply is OK.
NG >> Repair or replace harness between time control unit and
rear window defogger relay.
Terminal Condition Continuity
3512V direct current supply between
terminals 1 and 2Ye s
No current supply No
SEC202B
27 (G/W) - Ground : Battery voltage
PIIA9550E
27 (G/W) - 2 (G/W) : Continuity should exist.
PIIA9558E

GW-30
REAR WINDOW DEFOGGER

Rear Window Defogger Circuit Check 1EIS008AP
1. CHECK REAR WINDOW DEFOGGER POWER SUPPLY CIRCUIT
1. Turn ignition switch OFF.
2. Disconnect rear window defogger connector.
3. Turn ignition switch ON.
4. Check voltage between rear window defogger connector and ground.
OK or NG
OK >> GO TO 2.
NG >> GO TO 3.
2. CHECK REAR WINDOW DEFOGGER GROUND CIRCUIT
1. Turn ignition switch OFF.
2. Check continuity between rear window defogger connector D61
terminal 2 and ground.
OK or NG
OK >> Check filament, Refer to GW-38, "Filament Check"

If filament is OK
Check the condition of the harness and the connector.

If filament is ON
Repair filament.
NG >> Repair or replace harness between rear window defog-
ger and ground.
3. CHECK HARNESS CONTINUITY
1. Turn ignition switch OFF.
2. Remove the rear window defogger relay.
3. Check continuity between rear window defogger relay connector
B29 terminal 3 and rear window defogger connector D54 termi-
nal 1.
OK or NG
OK >> Check the condition of the harness and the connector.
NG >> Repair or replace harness between rear window defog-
ger relay and rear window defogger.
ConnectorTerminal (Wire color)
ConditionVoltage (V)
(Approx.)
(+) (-)
D54 1 (B/W) GroundRear window
defogger switch: ON Battery voltage
: OFF 0
PIIA4234E
2 (B) - Ground : Continuity should exist.
PIIA4235E
3 (B/W or BR) - 1 (B/W) : Continuity should exist.
PIIA9559E

REAR WINDOW DEFOGGER
GW-31
C
D
E
F
G
H
J
K
L
MA
B
GW

Rear Window Defogger Circuit Check 2EIS008BM
1. CHECK REAR WINDOW DEFOGGER POWER SUPPLY CIRCUIT
1. Turn ignition switch OFF.
2. Disconnect rear window defogger connector.
3. Turn ignition switch ON.
4. Check voltage between rear window defogger connector and ground.
OK or NG
OK >> GO TO 2.
NG >> GO TO 3.
2. CHECK REAR WINDOW DEFOGGER GROUND CIRCUIT
1. Turn ignition switch OFF.
2. Check continuity between rear window defogger connector D61
terminal 2 and ground.
OK or NG
OK >> Check filament, Refer to GW-38, "Filament Check"

If filament is OK
Check the condition of the harness and the connector.

If filament is ON
Repair filament.
NG >> Repair or replace harness between rear window defog-
ger and ground.
3. CHECK HARNESS CONTINUITY
1. Turn ignition switch OFF.
2. Remove the rear window defogger relay.
3. Check continuity between rear window defogger relay connector
B6 terminal 5 and rear window defogger connector D54 terminal
1.
OK or NG
OK >> Check the condition of the harness and the connector.
NG >> Repair or replace harness between rear window defog-
ger relay and rear window defogger.
ConnectorTerminal (Wire color)
ConditionVoltage (V)
(Approx.)
(+) (-)
D54 1 (B/W) GroundRear window
defogger switch: ON Battery voltage
: OFF 0
PIIA4234E
2 (B) - Ground : Continuity should exist.
PIIA4235E
5 (B/W or BR) - 1 (B/W) : Continuity should exist.
PIIA9560E

GW-32
REAR WINDOW DEFOGGER

Door Mirror Defogger Circuit CheckEIS008AQ
1. CHECK FUSE
Check 10A fuse [No.27, located in fuse block (J/B)]
NOTE:
Refer to GW-17, "
Component Parts and Harness Connector Location"
OK or NG
OK >> GO TO 2.
NG >> If fuse is blown, be sure to eliminate cause of malfunction before installing new fuse. Refer to PG-
2, "POWER SUPPLY ROUTING"
2. CHECK REAR WINDOW DEFOGGER RELAY POWER SUPPLY CIRCUIT
1. Turn ignition switch OFF.
2. Remove rear window defogger relay.
3. Turn ignition switch ON.
4. Check voltage between rear window defogger relay harness
connector B6 terminal 6 and ground.
OK or NG
OK >> GO TO 3.
NG >> Repair or replace harness between fuse block (J/B) and
rear window defogger relay.
3. CHECK REAR WINDOW DEFOGGER RELAY
Check continuity between rear window defogger relay terminal 6 and 7.
OK or NG
OK >> GO TO 4.
NG >> Replace rear window defogger relay.6 (R/B) - Ground : Battery voltage
PIIA9561E
Terminal Condition Continuity
6712V direct current supply
between terminals 1 and 2Ye s
No current supply No
SEC202B

REAR WINDOW DEFOGGER
GW-33
C
D
E
F
G
H
J
K
L
MA
B
GW

4. CHECK DOOR MIRROR DEFOGGER POWER SUPPLY
1. Turn ignition switch OFF.
2. Installation rear window defogger relay.
3. Turn ignition switch ON.
4. Check voltage between door mirror actuator connector D3 (driver side), D14 (passenger side) terminal 2
and ground.
OK or NG
OK >> GO TO 5.
NG >> GO TO 6.
5. CHECK DOOR MIRROR DEFOGGER GROUND
1. Turn ignition switch OFF.
2. Disconnect door mirror actuator connector.
3. Check continuity between door mirror actuator connector D3
(driver side), D14 (passenger side) terminal 3 and ground.
OK or NG
OK >> Replace malfunction door mirror actuator.
NG >> Repair or replace harness between door mirror actuator
and ground.
6. CHECK HARNESS CONTINUITY
1. Turn ignition switch OFF.
2. Disconnect door mirror actuator connector and rear window defogger relay.
3. Check continuity between door mirror actuator D3 (driver side),
D14 (passenger side) terminal 2 and rear window defogger relay
connector B6 terminal 7.
OK or NG
OK >> Check the condition of the harness and the connector.
NG >> Repair or replace harness between door mirror actuator
and rear window defogger relay.
ConnectorTerminal (Wire color)
ConditionVoltage (V)
(Approx.)
(+) (-)
D3
D142 (BR/W) GroundRear window
defogger switch: ON Battery voltage
: OFF 0
PIIA9562E
3 (B) - Ground : Continuity should exist.
PIIA9563E
2 (BR/W) - 7 (BR/W) : Continuity should exist.
PIIA9564E