2005 INFINITI QX4 battery

FRONT WIPER AND WASHER SYSTEM
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Terminals and Reference Values for IPDM E/R EKS00BDY
Work FlowEKS00BDZ
1. Confirm the trouble symptom or customer complaint.
2. Understand the system description, refer to WW-4, "
System Description" .
3. Perform preliminary inspection, refer to WW-15, "
Preliminary Inspection" .
4. Check symptom and repair or replace the cause of malfunction.
5. Does wiper function operate normally? If it operates normally, GO TO 6. If not, GO TO 4.
6. Inspection End.
Preliminary InspectionEKS00BE0
INSPECTION FOR POWER SUPPLY AND GROUND CIRCUIT
Inspection procedure
1. CHECK FUSE
Check if wiper or washer fuse is blown.
35 O/B Combination switch output 2
ON

Light switch and wiper switch OFF

Wiper dial position 4
36 R/W Combination switch output 1
38 W/L Ignition switch (ON) ON — Battery
39 L CAN-H ON — —
40 P CAN-L ON — —
67 B Ground — — 0
70 W/B Battery power OFF — Battery Te r m i -
nal No.Wire
colorSignal nameMeasuring condition
Reference Value (V)
(Approx.) Ignition
switchOperation or condition
SKIA5292E
Te r m i n a l
No.Wire
colorSignal nameMeasuring condition
Reference value (V)
(Approx.) Ignition
switchOperation or condition
32 L Low speed signal ON Wiper switchOFF 0
LO Battery
35 L/B High speed signal ON Wiper switchOFF 0
HI Battery
38 B Ground — — 0
39 L CAN-H ON — —
40 P CAN-L ON — —
43 L/Y Wiper auto stop signal ONWiper operating Battery
Wiper stopped 0
59 B Ground — — 0
Unit Power source Fuse No.
Front and rear washer motor Ignition switch ON or START 9
Front wiper relay Battery 39
BCMIgnition switch ON or START 59
Battery f

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FRONT WIPER AND WASHER SYSTEM
Revision: October 20052005 QX56
OK or NG
OK >> GO TO 2.
NG >> If fuse is blown, be sure to eliminate cause of problem before installing new fuse. Refer to PG-4,
"POWER SUPPLY ROUTING CIRCUIT" .
2. CHECK POWER SUPPLY CIRCUIT
1. Disconnect BCM connectors.
2. Check voltage between BCM harness connector terminals and
ground.
OK or NG
OK >> GO TO 3.
NG >> Check harness for open or short between BCM and fuse.
3. GROUND CIRCUIT INSPECTION (BCM)
Check for continuity between BCM terminal and ground.
OK or NG
OK >> Inspection End.
NG >> Repair/replace BCM ground circuit.
Terminals Ignition switch position
(+)
(–) OFF ON
ConnectorTe r m i n a l
(Wire color)
M18 38 (W/L)
Ground0V
Battery voltage
M20 70 (W/B) Battery voltage
WKIA2089E
Terminals
Ignition switch
conditionContinuity
ConnectorTe r m i n a l
(wire color)
M20 67 (B) Ground OFF Yes
WKIA2090E

FRONT WIPER AND WASHER SYSTEM
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3. IPDM E/R INSPECTION
With CONSULT-II
1. Select "HI" on "ACTIVE TEST" screen.
2. 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-22, "
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-31, "Removal and Installation of Wiper Motor and
Linkage" .
NG >> Replace IPDM E/R. Refer to PG-28, "
Removal and Installation of IPDM E/R" .
4. COMBINATION SWITCH TO BCM (1) 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-7, "
COMBINATION
SWITCH READING FUNCTION" .
5. COMBINATION SWITCH TO BCM (2) 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, "Removal and
Installation of BCM" .
CAN COMM CIRCUIT>> Check CAN communication line of BCM.
GO TO BCS-13, "
CAN Communication Inspection Using
CONSULT-II (Self-Diagnosis)" .
Te r m i n a l s
Vo l ta g e
(Approx.) (+)
(–) Condition
Connector Terminal (wire color)
E12132 (L)
GroundStopped 0
LO operation Battery voltage
35 (L/B)Stopped 0
HI operation Battery voltage
WKIA2101E
WKIA1018E
SKIA1039E

FRONT WIPER AND WASHER SYSTEM
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3. IPDM E/R INSPECTION
With CONSULT-II
1. Connect IPDM E/R connector and front wiper motor connector.
2. Select "LO" on "ACTIVE TEST" screen.
3. When front wipers are operating and when stopped, measure voltage between IPDM E/R terminal 43 and
ground.
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-22, "
Auto Active Test" .
3. When front wipers are operating and when stopped, measure
voltage between IPDM E/R terminal 43 and ground.
OK or NG
OK >> Replace IPDM E/R. Refer to PG-28, "Removal and Installation of IPDM E/R" .
NG >> Replace front wiper motor. Refer to WW-31, "
Removal and Installation of Wiper Motor and Link-
age" .
ONLY FRONT WIPER LOW DOES NOT OPERATE
Inspection Procedure
1. IPDM E/R TO FRONT WIPERS (1) INSPECTION
With CONSULT-II
1. Select "IPDM E/R" with CONSULT-II, and select "ACTIVE
TEST" on "SELECT DIAG MODE" screen.
2. Select "FRONT WIPER" on "SELECT TEST ITEM" screen.
3. Select "LO" on "ACTIVE TEST" screen.
4. Confirm front wiper low operation.
Without CONSULT-II
1. Turn on front wipers using auto active test. Refer to PG-22,
"Auto Active Test" .
2. Confirm front wiper low operation.
OK or NG
OK >> GO TO 4.
NG >> GO TO 2.
Terminals
Vo l ta g e
(Approx.) (+)
(–) Condition
ConnectorTe r m i n a l
(wire color)
E122 43 (L/Y) GroundWiper operatingBattery
voltage
Wiper stopped 0
WKIA2085E
SKIA3486E

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Revision: October 20052005 QX56
2. IPDM E/R TO FRONT WIPERS (2) 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. Select "LO" on "ACTIVE TEST" screen.
3. 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-22, "
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-31, "Removal and Installation of Wiper Motor and Linkage"
.
NG >> Replace IPDM E/R. Refer to PG-28, "
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, "Removal and Installa-
tion of BCM" .
NG >> Replace wiper switch. Refer to WW-33, "
Removal and
Installation of Wiper and Washer Switch" .
Terminals
Continuity
ConnectorTe r m i n a l
(wire color)ConnectorTe r m i n a l
(wire color)
E121 32 (L) E23 3 (L) Yes
WKIA2086E
Te r m i n a l s
Vo ltag e
(Approx.) (–) (+)
ConnectorTe r m i n a l
(wire color)ConnectorTe r m i n a l
(wire color)
E122 38 (B)
E121 32 (L)Battery
voltage
E124 59 (B)
WKIA3198E
WKIA1018E

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FRONT WIPER AND WASHER SYSTEM
Revision: October 20052005 QX56
3. IPDM E/R INSPECTION
With CONSULT-II
1. Connect IPDM E/R connector and front wiper motor connector.
2. Select "HI" on "ACTIVE TEST" screen.
3. 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-22, "
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-31, "Removal and Installation of Wiper Motor and Linkage"
.
NG >> Replace IPDM E/R. Refer to PG-28, "
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, "Removal and Installa-
tion of BCM" .
NG >> Replace wiper switch. Refer to WW-33, "
Removal and
Installation of Wiper and Washer Switch" .
ONLY FRONT WIPER INT DOES NOT OPERATE
Inspection Procedure
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, "Removal and Installa-
tion of BCM" .
NG >> Replace wiper switch. Refer to WW-33, "
Removal and
Installation of Wiper and Washer Switch" .
Te r m i n a l s
Voltage
(Approx.) (–) (+)
ConnectorTerminal (wire
color)ConnectorTerminal (wire
color)
E122 38 (B)
E121 35 (L/B)Battery
voltage
E124 59 (B)
WKIA3200E
WKIA1018E
WKIA1018E

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Revision: October 20052005 QX56
2. IPDM E/R TO FRONT WIPER MOTOR (2) 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.
4. Check continuity between IPDM E/R harness connector terminal
and ground.
OK or NG
OK >> Connect connectors. GO TO 3.
NG >> Repair harness or connector.
3. IPDM E/R TO FRONT WIPER MOTOR (3) INSPECTION
While front wiper motor is stopped and while operating, measure
voltage between IPDM E/R terminal 43 and ground.
OK or NG
OK >> Replace IPDM E/R. Refer to PG-28, "Removal and Installation of IPDM E/R" .
NG >> Replace front wiper motor. Refer to WW-31, "
Removal and Installation of Wiper Motor and Link-
age" .
Terminals
Continuity
ConnectorTe r m i n a l
(wire color)ConnectorTe r m i n a l
(wire color)
E122 43 (L/Y) E23 6 (L/Y) Yes
WKIA2084E
Te r m i n a l s
Continuity
Connector Terminal (wire color)
E122 43 (L/Y) Ground No
WKIA2088E
Te r m i n a l s
Voltag e
(Approx.) (+)
(–) Condition
ConnectorTe r m i n a l
(wire color)
E122 43 (L/Y) GroundWiper operatingBattery
voltage
Wiper stopped 0
WKIA2085E

REAR WIPER AND WASHER SYSTEM
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Terminals and Reference Values for BCMEKS00BEE
Te r m i -
nal No.Wire
colorSignal nameMeasuring condition
Reference Value (V)
(Approx.) Ignition
switchOperation or condition
2 SB Combination switch input 5 ON

Light switch and wiper switch OFF

Wiper dial position 4
3 G/Y Combination switch input 4 ON

Light switch and wiper switch OFF

Wiper dial position 4
4 Y Combination switch input 3 ON

Light switch and wiper switch OFF

Wiper dial position 4
5 G/B Combination switch input 2 ON

Light switch and wiper switch OFF

Wiper dial position 4
6 V Combination switch input 1 ON
26 Y/LRear wiper auto stop
switch 2ONRise up position (rear wiper arm on
stopper)0V
A Position (full clockwise stop
position)0V
Forward sweep (counterclockwise
direction)Fluctuating
B Position (full counterclockwise stop
position)Battery voltage
Reverse sweep (clockwise direction) Fluctuating
32 R/G Combination switch output 5 ON

Light switch and wiper switch OFF

Wiper dial position 4
SKIA5291E
SKIA5292E
SKIA5291E
SKIA5292E
SKIA5291E