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Old 01-28-2016, 08:06 PM   #1
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Parking Brake Light and Convertible Top Microswitch - Is There a Connection

I could use your help chasing down a solution.

Last weekend, I wanted to open to clamshell to check to see if the rear drains were clear. I put the parking brake on, opened the convertible top latch and pushed the button to lower the top. Nothing happened. No parking brake light, no window drop and no motor sounds.

Yesterday, I replaced the parking brake sensor switch. Now when I put the brake on, open the latch and push the button, the top will open. Still the parking brake light is out and the windows won't drop.

So my next task will be to change out the micro switches next to the convertible top latch. I expect this will fix the window won't drop problem. My question is will this fix the parking brake light out problem?

I know the light works because it comes on when I first turn the key in the ignition.

Thanks
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Old 01-29-2016, 03:14 AM   #2
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Has it thrown any codes?
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Old 01-29-2016, 07:27 PM   #3
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Good question I'll check tomorrow
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Old 01-30-2016, 04:18 PM   #4
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Found several codes. They were:

33 - interior sensor faulty
42 - wrong key or transponder pill
60 - central locking limit position Lock not reached

None of these seem like the problem unless the interior sensor and the latch micro switch are part of the same unit
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Old 01-30-2016, 04:54 PM   #5
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The brake has a sensor. If the light isn't lighting up when you pull the brake then that sensor needs replaced or the top won't operate. Seeing as you replaced it but the light still doesn't come on, check your work. Maybe test the relay with a multimeter?

If the light is good, and the sensor is good, you should see that light up when you pull the handle.

Last edited by jdraupp; 01-30-2016 at 05:00 PM.
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Old 03-19-2016, 04:01 PM   #6
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Here's where things stand now
  1. Parking light on when I first turn the ignition key; goes off when engine starts
  2. Convertible top and windows work normally
  3. Tested the convertible top relay with multi-meter, all tests were normal
  4. No parking light when engine is running and I pull up on the parking brake

Am I right that the light should come on when I pull up on the parking brake? If so, where should I look next.

Thanks
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Old 03-30-2016, 02:31 AM   #7
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Having the exact same issue, top works, but no brake light, so curious to see how this works out?
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Old 04-04-2016, 10:10 PM   #8
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Thom - disregard my last message. After a quick search, I see that you have a 2001. The correct pin on the cluster is #22 on the blue connector. Same procedure as described in my last message. With the DVM or test light attached as I described, pull the brake and release it to confirm that it is switching correctly. If not, you have a break in the wire between the parking brake and the cluster.
If it does switch properly, the problem lies within the cluster.
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