Wiper/Washer Switch Input Test
- Before troubleshooting the wiper/washer system, troubleshoot B-CAN System Diagnosis Test Mode A (see TROUBLESHOOTING - B-CAN SYSTEM DIAGNOSIS TEST MODE A ).
- Remove the dashboard lower cover (see DRIVER'S DASHBOARD LOWER COVER REMOVAL/INSTALLATION ).
- Remove the steering column covers (see STEERING COLUMN REMOVAL AND INSTALLATION ).
- Disconnect the 8P connector (A) from the wiper/washer switch (B).
- Inspect the connector and socket terminals to be sure they are all making good contact.
- If the terminals are bent, loose or corroded, repair them as necessary, and recheck the system.
- If the terminals look OK, go to step 6.
- Reconnect the connector to the wiper/washer switch, and make these input tests at the connector.
- If any test indicates a problem, find and correct the cause, then recheck the system.
- If all the input tests prove OK, go to step 7.
TEST CONDITION REFERENCE CHARTCavity Wire Test condition Test: Desired result Possible cause if desired result is not obtained 3 BLK Under all conditions Measure the voltage to ground: There should be less than 0.5 V. - Poor ground (G501)
- An open in the wire
8 WHT/RED(1) RED(2) Under all conditions Measure the voltage to ground: There should be battery voltage. - Blown No. 15 (40 A) fuse in the under-hood fuse/relay box
- Blown No. 7 (10 A) fuse in the under-dash fuse/relay box
- An open in the wire
7 YEL Ignition switch ON (II) Measure the voltage to ground: There should be battery voltage. - Blown No. 21 (7.5 A) fuse in the under-dash fuse/relay box
- An open in the wire
(1) '04-05 models (2) '06-08 models - Disconnect the 8P connector from the wiper/washer switch, and make these input tests at the connector.
- If any test indicates a problem, find and correct the cause, then recheck the system.
- If all the input tests prove OK, replace the wiper/washer switch (combination switch control unit).
TEST CONDITION REFERENCE CHARTCavity Wire Test condition Test: Desired result Possible cause if desired result is not obtained 5 GRN/WHT(1) GRN(2) Under all conditions Check for continuity between the No. 5 terminal and under-hood fuse/relay box K 10P connector No. 5 terminal: There should be continuity. An open in the wire 4 LT GRN Under all conditions Check for continuity between the No. 4 terminal and under-dash fuse/relay box X connector No. 27 terminal: There should be continuity. An open in the wire 1 WHT Under all conditions Check for continuity between the No. 1 terminal and under-hood fuse/relay box K 10P connector No.6 terminal: There should be continuity. An open in the wire (1) '04-05 models (2) '06-08 models