Wiper and Washer Switch Circuit
WIPER AND WASHER: WIPER AND WASHER SYSTEM: Wiper and Washer Switch Circuit
Wiper and Washer Switch Circuit
DESCRIPTION
- This circuit provides power to operate the combination switch.
- Perform this inspection with the back door window glass fully closed.
WIRING DIAGRAM
INSPECTION PROCEDURE
PROCEDURE
1. CHECK VEHICLE CONDITION
(a) Check the condition A, B or C, when rear wiper or rear washer system does not operate.
Result:
C -- WINDSHIELD WIPER SWITCH ASSEMBLY
B -- INSPECT WINDSHIELD WIPER SWITCH ASSEMBLY
A -- Continue to next step.
2. INSPECT WINDSHIELD WIPER SWITCH ASSEMBLY
(a) Check the continuity of the windshield wiper switch assembly.
Rear Wiper Switch:
Rear Washer Switch:
(b) Check the continuity between the terminals 2 (EW) of windshield wiper switch assembly and body ground.
Standard:
There is continuity
NG -- REPLACE WINDSHIELD WIPER SWITCH ASSEMBLY
OK -- Continue to next step.
3. INSPECT DRIVER SIDE JUNCTION BLOCK (SIG)
(a) Measure the voltage between terminals 1C-2 and 1H-2 of driver side junction block when ignition key is ON.
Standard voltage:
NG -- REPAIR OR REPLACE HARNESS OR CONNECTOR
OK -- REPAIR OR REPLACE POWER WINDOW REGULATOR MOTOR ASSEMBLY LH REAR
4. INSPECT WINDSHIELD WIPER SWITCH ASSEMBLY
(a) Check the continuity the windshield wiper switch assembly.
Rear Wiper Switch:
NG -- REPLACE WINDSHIELD WIPER SWITCH ASSEMBLY
OK -- Continue to next step.
5. CHECK MULTIPLEX NETWORK BODY ECU
(a) Check the continuity terminals multiplex network body ECU and body ground, when rear wiper switch operated.
Standard resistance:
NG -- REPAIR OR REPLACE HARNESS OR CONNECTOR
OK -- PROCEED TO NEXT CIRCUIT INSPECTION SHOWN IN PROBLEM SYMPTOMS TABLE
6. WINDSHIELD WIPER SWITCH ASSEMBLY
(a) Check the continuity the windshield wiper switch assembly.
Rear Washer Switch:
NG -- REPLACE WINDSHIELD WIPER SWITCH ASSEMBLY
OK -- Continue to next step.
7. INSPECT DRIVER SIDE JUNCTION BLOCK
(a) Check the continuity terminals driver side junction block and body ground, when rear washer switch operated.
Standard resistance:
NG -- REPLACE REAR WASHER MOTOR AND PUMP ASSEMBLY
OK -- PROCEED TO NEXT CIRCUIT INSPECTION SHOWN IN PROBLEM SYMPTOMS TABLE