Originally Posted by Cyclone76
Thanks to all those that provided comments.
Now here is the follow up:
Ignition to Run:
A & B should be 12 volts. I measured 0 volts. A to ground was 12 volts and B to ground was 12 volts. BUT I measured 12 volts across A and B with the ignition off.
B to G: 12 volts
B to C: 12 volts with any door open
A to K: I got 12 volts all the time (Supposed to come on when door handle lifted?)
J to G: Interior lamps turned on.
Trunk release works without the module plugged in.
Here'* the strange part:
I plugged the connector back into the module. The interior lights came on! (I had the passenger door open.) Now the the lights come on when the door handle is lifted. It appears everything works as it'* supposed to. Prior to doing all of the the tests I swithed two relays (one of which controls the courtesy lights). It didn't matter. I switched them back after the lights started working again and they still work.
Maybe I had a bad connection in the harness connector. I assume the module is solid state.
Is this same module used on my wife'* '99 Bonneville? If it is, next time I'm going to swap them. What does it cost??
Thanks all for your help!
Yes, that'* what I meant on the A and B tests. Each one should have 12V+, separately when the ignition is on.
Did you have the other two harnesses connected when you tested the trunk release? Did you test it with the door button or the remote? This point is probably not important.
A to K had 12V+ all of the time? That is only supposed to have 12V+ when the door handle is lifted. That would mean that the grey wire is shorted to the ground. One of your door handle switches may be permanently closed.
I would expect it to turn on the lights after you plugged in the RAC module, but then it should time out and turn the lights off after a period of time. And then they wouldn't come back on.
I can't say for sure that the 99 has the same module - that'* a risky switch.
So how is it working now? Everything normal or do you have the problem described above?