FRONT WIPER AND WASHER SYSTEM
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Front Wiper Does Not Operate Both in Low and IntermittentBKS002FY
1. CHECK CIRCUIT BETWEEN IPDM E/R AND FRONT WIPER MOTOR
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 (A) and
front wiper motor harness connector (B).
4. Check continuity between IPDM E/R harness connector (A) and
ground.
OK or NG
OK >> GO TO 2.
NG >> Repair harness or connector.
2. CHECK IPDM E/R OUTPUT VOLTAGE
With CONSULT-II
1. Connect IPDM E/R connector and front wiper motor connector.
2. Select “IPDM E/R” on CONSULT-II, and select “ACTIVE TEST” on “SELECT DIAG MODE” screen.
3. Select “FRONT WIPER” on “SELECT TEST ITEM” screen.
4. Touch “LO” screen.
5. When front wiper LOW is operating, check voltage between
IPDM E/R harness connector and ground.
Without CONSULT-II
1. Connect IPDM E/R connector and front wiper motor connector.
2. Start auto active test. Refer to PG-21, "
Auto Active Test" .
3. When front wiper LOW is operating, check voltage between IPDM E/R harness connector and ground.
OK or NG
OK >> Replace front wiper motor. Refer to WW-35, "Disassembly and Assembly of Front Wiper Drive
Assembly" .
NG >> Replace IPDM E/R. Refer to PG-28, "
Removal and Installation of IPDM E/R" .
AB
Continuity
Connector Terminal Connector Terminal
E7 21 E42 1 Yes
A
GroundContinuity
Connector Terminal
E7 21 No
PKID0222E
Terminals
ConditionVoltage
(Approx.) (+)
(–)
IPDM E/R
connectorTerminal
E7 21 GroundFront wiper stopped 0 V
Front wiper LOW operating Battery voltage
Te r m i n a l s
ConditionVoltage
(Approx.) (+)
(–)
IPDM E/R
connectorTerminal
E7 21 GroundFront wiper stopped 0 V
Front wiper LOW operating Battery voltage
PKID0223E
FRONT WIPER AND WASHER SYSTEM
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2. CHECK CIRCUIT BETWEEN COMBINATION SWITCH AND BCM
With CONSULT-II
1. Select “BCM” on CONSULT-II, and select “WIPER” on “SELECT TEST ITEM” screen.
2. Select “DATA MONITOR” on “SELECT DIAG MODE” screen.
Make sure that “FR WIPER HI” turns ON-OFF according to front
wiper switch operation.
Without CONSULT-II
Refer to LT- 1 8 5 , "
Combination Switch Inspection" .
OK or NG
OK >> Replace BCM. Refer to BCS-16, "Removal and Installa-
tion of BCM" .
NG >> Check combination switch (Front wiper switch). Refer to LT- 1 8 5 , "
Combination Switch Inspection"
.
3. CHECK CIRCUIT BETWEEN IPDM E/R AND FRONT WIPER MOTOR
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 (A) and
front wiper motor harness connector (B).
4. Check continuity between IPDM E/R harness connector (A) and
ground.
OK or NG
OK >> GO TO 4.
NG >> Repair harness or connector.When front wiper switch is in the
HI position:FR WIPER HI ON
PKIB0110E
AB
Continuity
Connector Terminal Connector Terminal
E7 31 E42 4 Yes
A
GroundContinuity
Connector Terminal
E7 31 No
PKID0224E
WW-30
FRONT WIPER AND WASHER SYSTEM
4. CHECK IPDM E/R OUTPUT VOLTAGE
With CONSULT-II
1. Connect IPDM E/R connector and front wiper motor connector.
2. Select “IPDM E/R” on CONSULT-II, and select “ACTIVE TEST” on “SELECT DIAG MODE” screen.
3. Select “FRONT WIPER” on “SELECT TEST ITEM” screen.
4. Touch “HI” screen.
5. When front wiper HI is operating, check voltage between IPDM
E/R harness connector and ground.
Without CONSULT-II
1. Connect IPDM E/R connector and front wiper motor connector.
2. Start auto active test. Refer to PG-21, "
Auto Active Test" .
3. When front wiper HI is operating, check voltage between IPDM E/R harness connector and ground.
OK or NG
OK >> Replace front wiper motor. Refer to WW-35, "Disassembly and Assembly of Front Wiper Drive
Assembly" .
NG >> Replace IPDM E/R. Refer to PG-28, "
Removal and Installation of IPDM E/R" .
Front Wiper Intermittent Operation Switch Position Cannot Be AdjustedBKS002G1
1. CHECK CIRCUIT BETWEEN COMBINATION SWITCH AND BCM
With CONSULT-II
1. Select “BCM” on CONSULT-II, and select “WIPER” on “SELECT TEST ITEM” screen.
2. Select “DATA MONITOR” on “SELECT DIAG MODE” screen.
Make sure that “INT VOLUME” changes 1-7 according to wiper
intermittent dial operation.
Without CONSULT-II
Refer to LT- 1 8 5 , "
Combination Switch Inspection" .
OK or NG
OK >> Replace BCM. Refer to BCS-16, "Removal and Installa-
tion of BCM" .
NG >> Check combination switch (Front wiper switch). Refer to LT- 1 8 5 , "
Combination Switch Inspection"
.
Terminals
ConditionVoltage
(Approx.) (+)
(–)
IPDM E/R
connectorTerminal
E7 31 GroundFront wiper stopped 0 V
Front wiper HI operating Battery voltage
Te r m i n a l s
ConditionVoltage
(Approx.) (+)
(–)
IPDM E/R
connectorTe r m i n a l
E7 31 GroundFront wiper stopped 0 V
Front wiper HI operating Battery voltage
SKIB4678E
When intermittent dial is in the
4 position:INT VOLUME 4
PKIB0110E
WW-40
HEADLAMP WASHER
HEADLAMP WASHERPFP:28620
Components Parts and Harness Connector LocationBKS002CB
System DescriptionBKS002CC
BCM (Body Control Module) controls headlamp washer operation.
IPDM E/R (Intelligent Power Distribution Module Engine Room) operates headlamp washer pump accord-
ing to CAN communication signal from BCM.
OUTLINE
Power is supplied at all times
to ignition relay (located in IPDM E/R), from battery direct,
through 15A fuse (No. 71, located in IPDM E/R)
to CPU (central processing unit) in IPDM E/R,
through 15A fuse (No. 78, located in IPDM E/R)
to CPU in IPDM E/R,
through 50A fusible link (letter M, located in fuse and fusible link block)
to BCM terminal 55,
through 30A fusible link (letter J, located in fuse and fusible link block)
to headlamp washer relay terminals 1 and 3.
With the ignition switch in the ON or START position, power is supplied
to ignition relay (located in IPDM E/R),
through 10A fuse [No. 1, located in fuse block (J/B)]
to BCM terminal 38.
With the ignition switch in ACC or ON position, power is supplied
through 10A fuse [No. 6, located in fuse block (J/B)]
to BCM terminal 11.
Ground is supplied
to BCM terminal 52
through grounds M71 and M72,
to IPDM E/R terminals 38 and 60
through grounds E1 and E31.
PKIC9882E
HEADLAMP WASHER
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When the headlamp washer switch is ON, ground is supplied
to BCM terminal 10
through headlamp washer switch terminal 1
through headlamp washer switch terminal 2
through grounds M71 and M72.
HEADLAMP WASHER OPERATION
When the headlamp washer switch is in ON position with the ignition switch in ON position and the lighting
switch in 2ND position, BCM detects the headlamp washer switch ON signal. It also detects the HEAD LAMP1
and 2 (ON) by BCM combination switch reading function. BCM judges that the condition of headlamp washer
operation meets. And then, BCM sends headlamp washer request signal (ON) through CAN communication.
When receiving headlamp washer request signal (ON), IPDM E/R turns ON headlamp washer relay. And then,
headlamp washer pump operates.
Power is supplied
through headlamp washer relay terminal 2
to IPDM E/R terminal 58,
through headlamp washer relay terminal 5
to headlamp washer pump terminal 1.
Ground is supplied
to headlamp washer pump terminal 2
through grounds E1 and E31.
With power and ground supplied, headlamp washer operates.
INTERLOCKED OPERATION WITH FRONT WINDOW WASHER
When the front window washer switch is in ON position at the every first time of ignition switch ON, with the
ignition switch in ON position and the lighting switch in 2ND position, BCM detects the FR WASHER (ON) and
the HEAD LAMP 1 and 2 (ON) by BCM combination switch reading function. BCM judges that the condition of
headlamp washer operation meets. And then, BCM sends headlamp washer request signal (ON) through
CAN communication.
When receiving headlamp washer request signal (ON), IPDM E/R turns ON headlamp washer relay. And then,
headlamp washer pump operates.
COMBINATION SWITCH READING FUNCTION
Refer to WW-7, "COMBINATION SWITCH READING FUNCTION" .
WW-48
HEADLAMP WASHER
Terminals and Reference Values for IPDM E/RBKS002CF
How to Proceed with Trouble DiagnosisBKS002CG
1. Confirm the symptoms and customer complaint.
2. Understand operation description and function description. Refer to WW-40, "
System Description" .
3. Perform the Preliminary Check. Refer to WW-49, "
Preliminary Check" .
4. Check symptom and repair or replace the cause of malfunction.
5. Does headlamp washer operate normally? If YES, GO TO 6. If NO, GO TO 4.
6. INSPECTION END
39 L CAN-H — — —
40 P CAN-L — — —
52 B Ground ON — Approx. 0 V
55 W/BBattery power
supplyOFF — Battery voltage Terminal
No.Wire
colorSignal nameMeasuring condition
Reference value
Ignition
switchOperation or condition
Terminal
No.Wire
colorSignal nameMeasuring condition
Reference value
Ignition
switchOperation or condition
38 B Ground ON — Approx. 0 V
48 L CAN− H—— —
49 P CAN− L—— —
58 G/W Headlamp washer relay signal ONHeadlamp washer
switch positionOFF Battery voltage
ON Approx. 0 V
60 B Ground ON — Approx. 0 V
HEADLAMP WASHER
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7. CHECK HEADLAMP WASHER RELAY
1. Turn ignition switch OFF.
2. Remove headlamp washer relay.
3. Check continuity between headlamp washer relay terminals.
OK or NG
OK >> GO TO 8.
NG >> Replace headlamp washer relay.
8. CHECK HEADLAMP WASHER RELAY POWER SUPPLY CIRCUIT
Check voltage between headlamp washer relay harness connector
and ground.
OK or NG
OK >> GO TO 9.
NG >> Repair harness or connector.
9. CHECK CIRCUIT BETWEEN IPDM E/R AND HEADLAMP WASHER RELAY
1. Disconnect IPDM E/R connector.
2. Check continuity between IPDM E/R harness connector (A) and
headlamp washer relay harness connector (B).
3. Check continuity between IPDM E/R harness connector (A) and
ground.
OK or NG
OK >> GO TO 10.
NG >> Repair harness or connector.
Terminals Condition Continuity
35Applying battery voltage to between terminals
1 and 2Ye s
No battery voltage No
PKIA4643E
Terminals
Voltage
(Approx.) (+)
(-)
Headlamp washer relay
connectorTerminal
E551
Ground Battery voltage
3
PKIA4640E
AB
Continuity
Connector Terminal Connector Terminal
E9 58 E55 2 Yes
A
GroundContinuity
Connector Terminal
E9 58 Yes
PKID0226E
WW-56
HEADLAMP WASHER
10. CHECK IPDM E/R INPUT VOLTAGE
1. Connect IPDM E/R connector.
2. Install headlamp washer relay.
3. Select “IPDM E/R” on CONSULT-II, and select “ACTIVE TEST” on “SELECT DIAG MODE” screen.
4. Select “HEAD LAMP WASHER” on “SELECT TEST ITEM” screen.
5. Touch “ON” screen.
6. When headlamp washer is operating, check voltage between
IPDM E/R harness connector and ground.
OK or NG
OK >> GO TO 11.
NG >> Replace IPDM E/R. Refer to PG-28, "
Removal and Installation of IPDM E/R" .
11 . CHECK CIRCUIT BETWEEN HEADLAMP WASHER RELAY AND HEADLAMP WASHER PUMP
1. Turn ignition switch OFF.
2. Remove headlamp washer relay.
3. Disconnect headlamp washer pump connector.
4. Check continuity between headlamp washer relay harness con-
nector (A) and headlamp washer pump harness connector (B).
5. Check continuity between headlamp washer relay harness con-
nector (A) and ground.
OK or NO
OK >> GO TO 12.
NO >> Repair harness or connector.
12. CHECK CIRCUIT BETWEEN HEADLAMP WASHER PUMP AND GROUND
Check continuity between headlamp washer pump harness connec-
tor and ground.
OK or NG
OK >> Replace headlamp washer pump. Refer to WW-58,
"Removal and Installation of Headlamp Washer Pump" .
NG >> Repair harness or connector.
Terminals
Voltage
(Approx.) (+)
(-)Headlamp
washer
condition IPDM E/R
connectorTerminal
E9 58 GroundOFF Battery voltage
ON 0 V
PKID0313E
AB
Continuity
Connector Terminal Connector Terminal
E55 5 E254 1 Yes
A
GroundContinuity
Connector Terminal
E55 5 No
PKIC9891E
Headlamp washer pump
connectorTerminal
GroundContinuity
E254 2 Yes
PKIC9892E