Monday, November 7th, 2011 AT 6:15 PM
JAMES KUJAWSKI
- MEMBER
- 1992 OLDSMOBILE 88
- 134,000 MILES
How do I repair this problem?
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Door locks and power seats wont work for apprx 1 min after rear window defogger has been on.
5 Replies
SATURNTECH9
- MECHANIC
- 30,870 POSTS
As long as the rear window defogger is on are those things inop?
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Monday, November 7th, 2011 AT 6:32 PM
JAMES KUJAWSKI
- MEMBER
- 3 POSTS
Yes, they wont work until the car or defogger is turned off for apprx 1 min.
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Monday, November 7th, 2011 AT 6:46 PM
SATURNTECH9
- MECHANIC
- 30,870 POSTS
The only thing that comes to mind is maybe the rear window defroster is stealing the ground from the other two circuits.
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Monday, November 7th, 2011 AT 7:07 PM
JAMES KUJAWSKI
- MEMBER
- 3 POSTS
Where do I find the ground for the rear defogger?
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Tuesday, November 8th, 2011 AT 5:58 PM
SATURNTECH9
- MECHANIC
- 30,870 POSTS
With everything off go back to your rear back window where the rear window defroster grid is. Then take your multimeter and set it to the lowest ohms setting probably like 200 ohms. Then touch the two meter leads together it should read 0 ohms. If it does then ground the black lead of the meter to a good unpainted chassis ground. Then you will see a black wire and purple and white wire to your defroster grid you want to touch the exposed terminal of the red meter lead to the black wire it should read less then 2 ohms. Let me know what you find.
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Tuesday, November 8th, 2011 AT 9:01 PM
