2006 INFINITI QX56 relay

WW-20
FRONT WIPER AND WASHER SYSTEM
Revision: November 20092006 QX56
3. IPDM E/R INSPECTION
With CONSULT-II
1. Turn ignition switch ON.
2. Select "HI" on "ACTIVE TEST" screen.
3. When front wiper relay and front wiper high relay are operating, check voltage between IPDM E/R termi- nals and ground.
Without CONSULT-II
1. Turn on front wipers using the auto active test. Refer to PG-24, "
Auto Active Test" .
2. When front wiper relay, and front wiper high relay are operating, check voltage between IPDM E/R terminals and ground.
OK or NG
OK >> Replace the front wiper motor. Refer to WW-29, "Wiper Motor and Linkage" .
NG >> Replace IPDM E/R. Refer to PG-30, "
Removal and Installation of IPDM E/R" .
4. COMBINATION SWITCH TO BCM INSPECTION
Select "BCM" on CONSULT-II. With "WIPER" data monitor, check
that "FR WIPER INT", "FR WIPER LOW" and "FR WIPER HI" turn
ON-OFF according to operation of wiper switch.
OK or NG
OK >> GO TO 5.
NG >> Check wiper switch. Refer to WW-6, "
COMBINATION
SWITCH READING FUNCTION" .
5. BCM INSPECTION
Select "BCM" on CONSULT-II. Carry out self-diagnosis of BCM.
Displayed self-diagnosis results
NO DTC>> Replace the BCM. Refer to BCS-20, "BCM" .
CAN COMM CIRCUIT>> Check CAN communication line of BCM.
GO TO BCS-13, "
CAN Communication Inspection Using
CONSULT-II (Self-Diagnosis)" .
Terminals
Voltage
(Approx.)
(+)
(– ) Condition
Connector Terminal
E121 32
Ground Stopped
0
LO operation Battery voltage
35 Stopped
0
HI operation Battery voltage
WKIA2101E
WKIA1018E
SKIA1039E

FRONT WIPER AND WASHER SYSTEMWW-23
C
DE
F
G H
I
J
L
M A
B
WW
Revision: November 2009 2006 QX56
2. IPDM E/R TO FRONT WIPERS CIRCUIT INSPECTION
1. Turn ignition switch OFF.
2. Disconnect IPDM E/R connector and front wiper motor connector.
3. Check continuity between IPDM E/R harness connector terminal and front wiper motor harness connector terminal.
OK or NG
OK >> GO TO 3.
NG >> Check for short circuit or open circuit in harness between IPDM E/R and front wiper motor.
3. IPDM E/R INSPECTION
With CONSULT-II
1. Connect IPDM E/R connector and front wiper motor connector.
2. Turn ignition switch ON.
3. Select "LO" on "ACTIVE TEST" screen.
4. When front wiper relay is operating, check voltage between IPDM E/R terminals.
Without CONSULT-II
1. Connect IPDM E/R connector and front wiper motor connector.
2. Turn on front wipers using the auto active test. Refer to PG-24, "
Auto Active Test" .
3. When front wiper relay is operating, check voltage between IPDM E/R terminals.
OK or NG
OK >> Replace the wiper motor. Refer to WW-29, "Wiper Motor
and Linkage" .
NG >> Replace IPDM E/R. Refer to PG-30, "
Removal and Installation of IPDM E/R" .
4. COMBINATION SWITCH TO BCM INSPECTION
Select "BCM" on CONSULT-II. With "WIPER" data monitor, check
that "FR WIPER HI" turns ON-OFF according to operation of wiper
switch.
OK or NG
OK >> Replace BCM. Refer to BCS-20, "BCM" .
NG >> Replace wiper switch. Refer to WW-30, "
Wiper and
Washer Switch" .
Terminals Continuity
Connector Terminal Connector Terminal
E121 32 E233Yes
WKIA2086E
Terminals
Vo l ta g e
(Approx.)
(
– )( +)
Connector Terminal Connector Terminal E122 38
E121 32 Battery
voltage
E124 59
WKIA3198E
WKIA1018E

FRONT WIPER AND WASHER SYSTEMWW-25
C
DE
F
G H
I
J
L
M A
B
WW
Revision: November 2009 2006 QX56
3. IPDM E/R INSPECTION
With CONSULT-II
1. Connect IPDM E/R connector and front wiper motor connector.
2. Turn ignition switch ON.
3. Select "HI" on "ACTIVE TEST" screen.
4. When front wiper high relay is operating, check voltage between IPDM E/R terminals.
Without CONSULT-II
1. Connect IPDM E/R connector and front wiper motor connector.
2. Turn on front wipers using the auto active test. Refer to PG-24, "
Auto Active Test" .
3. When front wiper high relay is operating, check voltage between IPDM E/R terminals.
OK or NG
OK >> Replace the wiper motor. Refer to WW-29, "Wiper Motor
and Linkage" .
NG >> Replace IPDM E/R. Refer to PG-30, "
Removal and Installation of IPDM E/R" .
4. COMBINATION SWITCH TO BCM INSPECTION
Select "BCM" on CONSULT-II. With "WIPER" data monitor, check
that "FR WIPER HI" turns ON-OFF according to operation of wiper
switch.
OK or NG
OK >> Replace BCM. Refer to BCS-20, "BCM" .
NG >> Replace wiper switch. Refer to WW-30, "
Wiper and
Washer Switch" .
ONLY FRONT WIPER INTERMITTENT DOES NOT OPERATE
1. COMBINATION SWITCH TO BCM INSPECTION
Select "BCM" on CONSULT-II. With "WIPER" data monitor, check
that "FR WIPER INT" turns ON-OFF according to operation of wiper
switch.
OK or NG
OK >> Replace BCM. Refer to BCS-20, "BCM" .
NG >> Replace wiper switch. Refer to WW-30, "
Wiper and
Washer Switch" .
Te r m i n a l s
Vo l ta g e
(Approx.)
(
– )(+)
Connector Terminal Connector Terminal E122 38
E121 35Battery
voltage
E124 59
WKIA3200E
WKIA1018E
WKIA1018E

WW-32
REAR WIPER AND WASHER SYSTEM
Revision: November 20092006 QX56
REAR WIPER AND WASHER SYSTEMPFP:28710
Components Parts and Harness Connector LocationEKS00BEB
System DescriptionEKS00BEC

The wiper switch (combination switch) is composed of a combination of 5 output terminals and 5 input ter-
minals. Terminal combination status is read by the BCM (body control module) when switch is turned ON.

The BCM controls rear wiper ON and INT (intermittent) operation.
Power is supplied at all times

through 50A fusible link (letter f , located in fusible link box)

to BCM terminal 70.
With the ignition switch in ON or START position, power is supplied

through 10A fuse [No. 9, located in fuse block (J/B)]

to combination switch terminal 14, and

through 10A fuse (No. 59, located in the fuse and relay box)

to BCM terminal 38.
Ground is supplied

to BCM terminal 67 and

to combination switch terminal 12

through grounds M57, M61 and M79.
WKIA3462E