850 No reverse lights - PNP switch? No diag code (?)

I have a 1997 850GLT, and the reverse lights have quit working. Sockets, bulbs and fuse are all good. I tried the 'cleaning' routine of shifting rapidly from P to L about 20 times -- still no reverse lights.

Q1: If the PNP switch is bad, should I expect the check engine light to be on, and have a code available to read? I'm not getting any codes, and the performance/operation of the car is normal.

Q2: Is it highly probable that the PNP switch is what I need to replace, given that my reverse lights are not working, and the bulbs/fuse check out okay?

I just hate to go through the PNP switch replacement if it might end up not being the problem...

Thanks, Randy

Reply to
Randy MacKenna
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No, since the contacts that control the reversing light are probably separate from the ones the feed the TCU.

Yes, at least in my 94, the PNP switch controls the reversing lights.

You could short the correct two pins together in the harness connector for the PNP switch and see if the lights come on. Unfortuntely, I wouldn't trust the pinout to match for the 94, unless the switches are the same part #. If you can determine if it's the same, I can scan the page that shows the pins for you.

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Reply to
Doug Warner

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