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Old 02-23-2003, 09:12 AM
Jag Guy
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300 TE Battery Discharge

My wife's '91 300TE recently had a battery discharge problem. I got to the bottom of the problem and thought it might be of help to someone.

The symptoms, besides the dead battery were:

1) Constant 15A battery drain with the key off.

2) Removing fuse "C" decreased current draw to 1A.

3) Removing fuse 9 decreased current draw to 0A.

The problem was a short circuit in the tailgate lock actuator position switch. The short circuit burned the insulation on the Yellow/Blk signal wire, the Red/Blk signal wire and the Brown/Blk ground wire.

As a temporary repair, I disconnected the position switch and insulated the burned wires. Everything basically works in this condition, however, the tailgate lock will not activate the central locking system or the alarm system.

Last edited by Jag Guy; 02-23-2003 at 07:44 PM.
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