WW-14
< SERVICE INFORMATION >
FRONT WIPER AND WASHER SYSTEM
Terminal and Reference Value for IPDM E/R
INFOID:0000000001328549
How to Proceed with Trouble DiagnosisINFOID:0000000001328550
1. Confirm the symptoms and customer complaint.
2. Understand operation description and function description. Refer to WW-4, "
System Description".
3. Perform the Preliminary Check. Refer to WW-14, "
Preliminary Check".
4. Check symptom and repair or r eplace the cause of malfunction.
5. Does the front wiper and washer operate norma lly? If YES, GO TO 6. If NO, GO TO 4.
6. INSPECTION END
Preliminary CheckINFOID:0000000001328551
CHECK POWER SUPPLY AND GROUND CIRCUIT
1.CHECK FUSE
Check for blown fuses.
Refer to WW-8, "
Wiring Diagram - WIPER -".
OK or NG
OK >> GO TO 2
NG >> If fuse is blown, be sure to eliminate caus e of malfunction before installing new fuse, Refer to PG-
3, "Schematic".
2.CHECK POWER SUPPLY CIRCUIT
1. Turn ignition switch OFF.
2. Disconnect BCM connector.
Te r m i n a l No. Wire
color Signal name Measuring condition
Reference value
Ignition
switch Operation or condition
21 P Low speed signal ON Wiper switch OFF Approx. 0 V
LOW Battery voltage
31 PU High speed signal ON Wiper switch OFF Approx. 0 V
HI Battery voltage
32 L Wiper auto - stop signal ON Wiper operating Battery voltage
Wiper stopped Approx. 0 V
38 B Ground ON — Approx. 0 V
44 OR Front and rear washer pump
power supply ON — Battery voltage
48 L CAN-H — — —
49 R CAN-L — — —
60 B Ground ON — Approx. 0 V
Unit Power source Fuse and fusible link No.
Front and Rear washer pump Ignition switch ON or START 84
Front wiper motor, front wiper rela y, front wiper HI relay Battery 73
BCM BatteryM
22
Ignition switch ON or START 1
3AA93ABC3ACD3AC03ACA3AC03AC63AC53A913A773A893A873A873A8E3A773A983AC73AC93AC03AC3
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WW-18
< SERVICE INFORMATION >
FRONT WIPER AND WASHER SYSTEM
With CONSULT-III
1. Connect IPDM E/R connector and front wiper motor connector.
2. Select “FRONT WIPER” of IPDM E/R active test item.
3. With operating the test item , check voltage between IPDM E/R
harness connector and ground.
Without CONSULT-III
1. Connect IPDM E/R connector and front wiper motor connector.
2. Start up auto active test. Refer to PG-20, "
Auto Active Test".
3. Check voltage between IPDM E/R harness connector and ground.
OK or NG
OK >> Replace front wiper motor.
NG >> Replace IPDM E/R.
5.CHECK CIRCUIT BETWEEN COMB INATION SWITCH AND BCM
With CONSULT-III
1. Select “FR WIPER INT”, “FR WIPER LOW”, and “FR WIPER HI” of BCM data monitor item.
2. With operating the wiper switch, check the monitor status.
Without CONSULT-III
Refer to LT-104, "
Combination Switch Inspection".
OK or NG
OK >> GO TO 6.
NG >> Check combination switch (wiper switch). Refer to LT-104, "
Combination Switch Inspection".
6.CHECK CIRCUIT BETWEEN IPDM E/R AND BCM
Select “BCM” on CONSULT-III, and perform self-diagnosis for “BCM”.
Displayed self
-diagnosis results
NO DTC>>Replace BCM. Refer to BCS-13, "Removal and Installation of BCM".
CAN COMM CIRCUIT>>Check CAN communi cation line of BCM. Refer to LAN-43, "
CAN System Specifica-
tion Chart".
Front Wiper Does Not Return to Stop PositionINFOID:0000000001328555
1.CHECK FRONT WIPER STOP SIGNAL
With CONSULT-III
1. Select “WIP AUTO STOP” of IPDM E/R data monitor item.
2. Check that “WIP AUTO STOP” turns “ACT P” - “STOP P” linked with wiper operation.
Without CONSULT-III
GO TO 2.
(+)
(-) Condition Vol tag e
(Approx.)
IPDM E/R
connector Te r m i n a l
E7 21
Ground Stopped 0 V
LO operation Battery voltage
31 Stopped 0 V
HI operation Battery voltage
(+) (-) Condition Vol tag e
(Approx.)
IPDM E/R
connector Te r m i n a l
E7 21
Ground Stopped 0 V
LO operation Battery voltage
31 Stopped 0 V
HI operation Battery voltage
PKIA5194E
3AA93ABC3ACD3AC03ACA3AC03AC63AC53A913A773A893A873A873A8E3A773A983AC73AC93AC03AC3
3A893A873A873A8F3A773A9D3AAF3A8A3A8C3A863A9D3AAF3A8B3A8C
WW-22
< SERVICE INFORMATION >
FRONT WIPER AND WASHER SYSTEM
Displayed self-diagnosis results
NO DTC>>Replace BCM. Refer to BCS-13, "Removal and Installation of BCM".
CAN COMM CIRCUIT>>Check CAN communi cation line of BCM. Refer to LAN-43, "
CAN System Specifica-
tion Chart".
Front Wiper Intermittent Operation S witch Position Cannot Be AdjustedINFOID:0000000001328560
1.CHECK CIRCUIT BETWEEN COMB INATION SWITCH AND BCM
With CONSULT-III
1. Select “INT VOLUME” of BCM data monitor item.
2. Check that “INT VOLUME”, changes in order fo rm 1 to 7 according to wiper switch operation.
Without CONSULT-III
Refer to LT-104, "
Combination Switch Inspection".
OK or NG
OK >> Replace BCM. Refer to BCS-13, "Removal and Installation of BCM".
NG >> Check combination switch (wiper switch). Refer to LT-104, "
Combination Switch Inspection".
Wiper Does Not Wipe When Front Washer OperatesINFOID:0000000001328561
1.CHECK CIRCUIT BETWEEN COMB INATION SWITCH AND BCM
With CONSULT-III
1. Select “FR WASHER SW” of BCM data monitor item.
2. Check that “FR WASHER SW” turn ON-OFF according to front wiper switch operation.
Without CONSULT-III
Refer to LT-104, "
Combination Switch Inspection".
OK or NG
OK >> Replace BCM Refer to BCS-13, "Removal and Installation of BCM".
NG >> Check combination switch (wiper switch). Refer to LT-104, "
Combination Switch Inspection".
After Front Wiper Operate for 10 Seconds, They Stop for 20 Seconds, and After Re-
peating the Operation Five Time s, They Become Inoperative
INFOID:0000000001328562
CAUTION:
When auto-stop signal has not varied for 10 seconds or longer while IPDM E/R is operating front wip-
ers, IPDM E/R considers that front wipers are locked, and stops wiper output. That causes this symp-
tom.
This status can be checked by “DATA MONITOR” of “IPDM E/R” on which “WIPER PROTECTION”
item shows “BLOCK”.
1.CHECK WIPER MOTOR SIGNAL
With CONSULT-III
1. Select “WIP AUTO STOP” of BCM data monitor item.
2. Check that “WIP AUTO STOP” turns “ACT P” - “STOP P” linked with wiper operation.
Without CONSULT-III
GO TO 2.
OK or NG
OK >> Replace IPDM E/R.
NG >> GO TO 2.
2.CHECK WIPER AUTO STOP CIRCUIT
1. Turn ignition switch OFF.
2. Disconnect IPDM E/R connector and front wiper motor connector.
3AA93ABC3ACD3AC03ACA3AC03AC63AC53A913A773A893A873A873A8E3A773A983AC73AC93AC03AC3
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WW-30
< SERVICE INFORMATION >
REAR WIPER AND WASHER SYSTEM
REAR WIPER AND WASHER SYSTEM
Component Parts and Harness Connector LocationINFOID:0000000001328576
System DescriptionINFOID:0000000001328577
Wiper switch (combination switch) is composed of a combination of 5 output terminals and 5 input terminals.
Terminal combination status is read by BCM ( body control module) when switch is turned ON.
BCM controls rear wiper ON and INT (intermittent) operation.
Power supplied at all times
through 50 A fusible link (letter M, located in fuse, fusible link and relay box)
to BCM terminal 55,
through 15 A fuse [No. 22, located in fuse block (J/B)]
to BCM terminal 42.
When ignition switch ON or START position, power is supplied
through 15 A fuse [No.1, located in fuse block (J/B)]
to BCM terminal 38,
through 10 A fuse [No. 84, located in IPDM E/R (intelligent power distribution module engine room)]
to combination switch terminal 14.
Ground is supplied
to BCM terminals 49 and 52
through grounds M35, M45 and M85,
to combination switch terminal 12
through grounds M35, M45 and M85.
REAR WIPER OPERATION
When the wiper switch is in rear wiper ON position, BCM detects rear wiper ON signal by BCM wiper switch
reading function.
BCM operates rear wiper motor, power is supplied
through BCM terminal 70
to rear wiper motor 4.
Ground is supplied
to rear wiper motor terminal 2
through grounds B15 and B45.
With power and ground supplied, the rear wiper operates.
PKIC9708E
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3A893A873A873A8F3A773A9D3AAF3A8A3A8C3A863A9D3AAF3A8B3A8C
REAR WIPER AND WASHER SYSTEMWW-31
< SERVICE INFORMATION >
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INTERMITTENT OPERATION
The rear wiper motor operates the wiper arms at low speed approximately every 7 seconds.
When the wiper switch is in rear wiper INT position, BCM detects rear wiper INT signal by BCM wiper switch
reading function (Refer to BCS-4, "
System Description").
BCM operates rear wiper motor, power supplied
through BCM terminal 70
to rear wiper motor terminal 4.
Ground is supplied
to rear wiper motor terminal 2
through grounds B15 and B45.
With power and ground supplied, rear wiper operates at intermittent.
AUTO STOP OPERATION
With rear wiper switch turned OFF, rear wiper motor will continue to operate until wiper arm reaches rear wiper
stopper.
Then wiper motor turns the other way and wiper arm moves once until wiper arm reaches stopper.
WASHER OPERATION
When the wiper switch is in rear wiper washer positi on, BCM detects rear wiper washer signal by BCM wiper
switch reading function (Refer to BCS-4, "
System Description"), and combination switch (wiper switch) ground
is supplied
to combination switch terminal 11
through front and rear washer pump terminal 2,
to front and rear washer pump terminal 1
through combination switch terminal 13
through combination switch terminal 12
through grounds M35, M45 and M85.
With ground supplied, front and rear washer pump is operated.
When the BCM detects that washer pump has operated fo r. 0.4 seconds or linger, BCM operates rear wiper
pump low speed.
When the BCM detects washer switch is OFF, low speed operation cycles approximately 3 times and then
stops.
BCM WIPER SWITCH READING FUNCTION
Refer to BCS-4, "System Description".
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REAR WIPER AND WASHER SYSTEMWW-33
< SERVICE INFORMATION >
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Terminal and Reference Value for BCMINFOID:0000000001328579
CAUTION:
Check combination switch system terminal wavef orm under the loaded condition with lighting
switch, turn signal switch an d wiper switch OFF not to be fluctuated by overloaded.
Turn wiper intermittent dial position to 4 except when checking waveform or voltage of wiper inter-
mittent dial position. Wiper intermittent dial position can be confirmed on CONSULT-III. Refer to WW-
15, "CONSULT-III Functions (BCM)".
TKWM4377E
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WW-34
< SERVICE INFORMATION >
REAR WIPER AND WASHER SYSTEM
Te r m i n a l No. Wire
color Signal name Measuring condition
Reference value
Ignition
switch Operation or condition
5Y/R Combination
switch input 2 ONLighting, turn, wip-
er switch
(Wiper intermittent
dial position 4) OFF Approx. 0 V
Rear washer switch
Approx. 1.0 V
Rear wiper switch ON Approx. 0.8 v
6SB Combination
switch input 1 ONLighting, turn,
wiper switch
(Wiper intermittent
dial position 4) OFF Approx. 0 V
Rear wiper INT
Approx. 1.0 V
32 GY/R Combination
switch output 5
ONLighting, turn,
wiper switch
(Wiper intermittent
dial position 4) OFF
Approx. 7.0 - 7.5 V
Rear wiper ON Approx. 1.0 V
PKIB4959J
PKIB4955J
PKIB4959J
PKIB4960J
PKIB4956J
3AA93ABC3ACD3AC03ACA3AC03AC63AC53A913A773A893A873A873A8E3A773A983AC73AC93AC03AC3
3A893A873A873A8F3A773A9D3AAF3A8A3A8C3A863A9D3AAF3A8B3A8C
REAR WIPER AND WASHER SYSTEMWW-35
< SERVICE INFORMATION >
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How to Proceed with Trouble DiagnosisINFOID:0000000001328580
1. Confirm the symptoms and customer complaint.
33 G Combination
switch output 4 ONLighting, turn, wip-
er switch
(Wiper intermittent
dial position 4) OFF
Approx. 7.2 V
Rear wiper switch INT Approx. 1.2 V
34 W/B Combination
switch output 3
ONLighting, turn, wip-
er switch
(Wiper intermittent
dial position 4) OFF
Approx. 7.2 V
Rear washer switch Approx. 1.2 V
38 W/L Ignition switch
(ON) ON — Battery voltage
39 L CAN − H— — —
40 P CAN − L— — —
42 L/R Battery power
supply
OFF — Battery voltage
49 B Ground ON — Approx. 0 V
52 B Ground ON — Approx. 0 V
55 G Battery power
supply OFF — Battery voltage
59 Y Rear wiper auto
stop signal
ONWiper operating Approx. 0 V
Wiper stopped Battery voltage
70 SB Rear wiper mo-
tor output signal ON Wiper switch OFF Approx. 0 V
ON Battery voltage
Te r m i n a l
No. Wire
color Signal name Measuring condition
Reference value
Ignition
switch Operation or condition
PKIB4960J
PKIB4958J
PKIB4960J
PKIB4958J
3AA93ABC3ACD3AC03ACA3AC03AC63AC53A913A773A893A873A873A8E3A773A983AC73AC93AC03AC3
3A893A873A873A8F3A773A9D3AAF3A8A3A8C3A863A9D3AAF3A8B3A8C