Cadillac Owners Forum banner

Switch OFF, wipers ON...

1555 Views 6 Replies 3 Participants Last post by  Candyllac
I'm working on an '08 CTS. The wipers and window washer come on intermittently even though the switch is off. Testing I found a square wave signal on the wire from the washer push button switch to the body control module. All of the other parts of the circuit (low, intermittent, high) are pull-down circuits and therefore have the typical system voltage at rest. When a switch is activated, the voltage is pulled to ground.
Has anybody ever seen this square wave?
BTW, all normal functions work (mist, low, intermittent, high)... when it's not acting up.
1 - 1 of 7 Posts
Damn, you're far ahead most of us in terms of technical knowledge. Good luck on your quest. And love your screen-name. lol
  • Like
Reactions: 1
1 - 1 of 7 Posts
This is an older thread, you may not receive a response, and could be reviving an old thread. Please consider creating a new thread.