So what makes the Central Locking Pump on a '93 90 sedan run all the time??

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09-13-2007, 05:04 AM

Junker CQ

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So what makes the Central Locking Pump on a '93 90 sedan run all the time??

Found out that is what's killing the battery. Did the diagnostic procedure as explained here and found the damn pump running all the time. Relay? Bad pump? The pump is in the rear of the car on passenger side? Correct?

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09-13-2007, 05:06 AM

Brdman*

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a vac leak can also do that... you can hear it running ALL the time?

or just too long?

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09-13-2007, 05:10 AM

Junker CQ

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System runs to specs, all locks work and operate but the damn pump....

works all the time. Can hear it hum when the car is off.

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09-13-2007, 10:00 AM

Brdman*

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that's strange. could possibly be the trunk lid wiring, but i'm thinking the pump itself.

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