Combination Switch Control Unit Input Test
WARNING: This page is about a different car, the 2008 Acura TSX, 2007 Acura TSX, 2006 Acura TSX, 2005 Acura TSX, and 2004 Acura TSX. However, it is still accessible from the selected car via links, so may be relevant.
- Remove the steering column covers (see STEERING COLUMN REMOVAL AND INSTALLATION ).
- Disconnect the 8P connector from the wiper/washer switch.
- 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 4.
- Reconnect the connector to the wiper/washer switch, turn the ignition switch ON (II), 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 5.INPUT TEST CONDITION REFERENCE CHART
Cavity 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, G601)
- 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. 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, the combination switch control unit must be faulty, replace the wiper/washer switch.INPUT TEST CONDITION REFERENCE CHART
Cavity Wire Test condition Test: Desired result Possible cause if desired result is not obtained 4 LTGRN Under-dash fuse/relay box connector X (39P) connector disconnected Check for continuity between terminal 4 and the under-dash fuse/relay box connector X (39P) connector No. 27 terminal: There should be continuity. An open in the wire Check for continuity to ground: There should be no continuity. Short to ground