Nissan Primera P12. Manual — part 508
GW-28
REAR WINDOW DEFOGGER
Rear Window Defogger Switch Circuit Check
EIS0060W
1.
CHECK REAR WINDOW DEFOGGER SWITCH OPERATION
With CONSULT-II
Check (“REAR DEF SW”) in DATA MONITOR mode with CONSULT-II.
With out CONSULT-II
1.
Turn ignition switch ON.
2.
Check voltage between smart entrance control unit connector ground.
OK or NG
OK
>> Rear window defogger switch check is OK.
NG
>> GO TO 2.
2.
CHECK HARNESS CONTINUITY
1.
Turn ignition switch OFF.
2.
Disconnect smart entrance control unit and multifunction switch connector.
3.
Check continuity between smart entrance control unit connector
M41 terminal 22 and multifunction switch connector M49 termi-
nal 9.
4.
Check continuity between smart entrance control unit connector
M41 terminal 22 and ground
OK or NG
OK
>> GO TO 3.
NG
>> Repair or replace harness between smart entrance con-
trol unit and multifunction switch.
When rear window defogger switch is turned to ON
REAR DEF SW
: ON
MIIB0417E
Connector
Terminal (Wire color)
Condition
Voltage (V)
(Approx.)
(+)
(–)
M41
22 (G/B)
Ground
Rear window defogger
switch is pressed.
0
Rear window defogger
switch is OFF.
Batter voltage
MIIB0418E
22 (G/B) – 9 (G/B)
: Continuity should exist.
22 (G/B) – Ground
: Continuity should not exist.
MIIB0419E
REAR WINDOW DEFOGGER
GW-29
C
D
E
F
G
H
J
K
L
M
A
B
GW
3.
CHECK SMART ENTRANCE CONTROL UNIT OUTPUT SIGNAL
1.
Connect smart entrance control unit connector.
2.
Turn ignition switch ON.
3.
Check voltage between smart entrance control unit connector
M41 terminal 22 and ground.
OK or NG
OK
>> Replace multifunction switch.
NG
>> Replace smart entrance control unit.
22 (G/B) – Ground
: Approx. 5
MIIB0418E
GW-30
REAR WINDOW DEFOGGER
Rear Window Defogger Power Supply Circuit Check
EIS0060X
1.
CHECK FUSE
●
Check 10A fuse [No.23, located in the fuse block (J/B)]
●
Check 20A fuse [No.7, located in the fuse block (J/B)]
NOTE:
Refer to
GW-16, "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
.
2.
CHECK POWER SUPPLY CIRCUIT
1.
Turn ignition switch OFF.
2.
Disconnect rear window defogger relay.
3.
Turn ignition switch ON.
4.
Check voltage between rear window defogger relay connector 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 terminals 3 and 5, 6 and 7.
OK or NG
OK
>> GO TO 4.
NG
>> Replace rear window defogger relay.
Connector
Terminals (Wire color)
Voltage (V)
(Approx.)
(+)
(-)
B7
1 (G)
Ground
Battery voltage
3 (L/B)
6 (P)
PIIA4233E
Terminal
Condition
Continuity
3
5
12V direct current supply
between terminals 1 and 2
Yes
No current supply
No
6
7
12V direct current supply
between terminals 1 and 2
Yes
No current supply
No
SEC202B
REAR WINDOW DEFOGGER
GW-31
C
D
E
F
G
H
J
K
L
M
A
B
GW
4.
CHECK GROUND CIRCUIT
1.
Installation rear window defogger relay.
2.
Turn ignition switch ON.
3.
Check voltage between smart entrance control unit connector and ground.
OK or NG
OK
>> Rear window defogger power supply circuit check is OK.
NG
>> GO TO 5.
5.
CHECK HARNESS CONTINUITY
1.
Turn ignition switch OFF.
2.
Disconnect smart entrance control unit connector and rear window defogger relay.
3.
Check continuity between smart entrance control unit connector
M42 terminal 31 and rear window defogger relay connector B7
terminal 2.
OK or NG
OK
>> GO TO 6.
NG
>> Repair or replace harness between smart entrance con-
trol unit and rear window defogger relay.
6.
CHECK REAR WINDOW DEFOGGER RELAY OUTPUT SIGNAL
1.
Connect smart entrance control unit and rear window defogger relay.
2.
Turn ignition switch ON.
3.
Check voltage between smart entrance control unit connector
M42 terminal 31 and ground.
OK or NG
OK
>> Replace smart entrance control unit.
NG
>> Check the condition of the harness and the connector.
Connector
Terminals (Wire color)
Condition
Voltage (V)
(Approx.)
(+)
(-)
M42
31 (G/W)
Ground
When rear window defog-
ger switch ON
0
When rear window defog-
ger switch OFF
Battery
voltage
MIIB0420E
31 (G/W) – 2 (G/W)
: Continuity should exist.
MIIB0421E
31 (G/W) – Ground
:Battery voltage
MIIB0420E
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