WW-44
REAR WIPER AND WASHER SYSTEM
Revision: October 20052005 QX56
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 the 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 Battery voltage
WKIA2089E
Terminals
Ignition switch
conditionContinuity
ConnectorTe r m i n a l
(wire color)
M20 67 (B) Ground OFF Yes
WKIA2090E
WW-48
REAR WIPER AND WASHER SYSTEM
Revision: October 20052005 QX56
4. CHECK REAR WIPER MOTOR AUTO STOP CIRCUITS
1. Disconnect BCM connector M18.
2. Check continuity between BCM harness connector terminals
and rear wiper motor harness connector terminals.
OK or NO
OK >> GO TO 5.
NO >> Repair harness or connector.
5. CHECK REAR WIPER MOTOR AUTO STOP SWITCH GROUNDS
Check continuity between rear wiper motor harness connector D704
terminals and ground.
OK or NG
OK >> GO TO 6.
NG >> Repair harness or connector.
6. CHECK REAR WIPER OPERATING
1. Connect BCM connectors and rear wiper motor connector.
2. Select "RR WIPER" during "ACTIVE TEST". Refer to WW-46,
"ACTIVE TEST" . When rear wiper is operating, check voltage
between BCM connector terminals.
OK or NG
OK >> Replace rear wiper motor. Refer to WW-53, "Removal and Installation of Rear Wiper Motor" .
NG >> Replace BCM. Refer to BCS-20, "
Removal and Installation of BCM" .
Te r m i n a l s
Continuity
ConnectorTe r m i n a l
(wire color)ConnectorTe r m i n a l
(wire color)
M18 26 (Y/L)
D7041 (Y/L)
Ye s
M19 44 (O) 2 (O)
WKIA2093E
Terminals
Continuity
ConnectorTe r m i n a l
(wire color)
D7043 (B)
Ground Yes
5 (B)
WKIA2094E
ConnectorTe r m i n a l s
Voltage
(Approx.) (+)
(–) Condition
Terminal
(wire color)
M1954 (Y)
GroundOperating Fluctuating
55 (SB)End of travel
(stopped)0
WKIA2095E
