Question about 1996 Oldsmobile 88
Good fun chasing this one down.... Died on the side of the road when my wife tried to lower the window. Would not restart. She could not raise the windows before she walked home. Car restarted 5hrs later, but died when my buddy hit the turn signal. Towed it home. Again no windows. Door locks would only unlock with the Ign. on, but worked normally ign. off. Window controls will only dim out the interior lights Ign. on or off. Seems like a bad ground. Oh yea No fuel PSI... and seat controls worked before the last restart, but dead now. Where the F is the ground for all these... Or is it the PCM? (black box behind the glove box?) I know it controls the door locks, but what else? Yea I need a service manual with a good wiring diagram. Any help would be great.
All I can suggest is to carefully check out the condition of all +12V power supply leads and ground connections, from the battery to the general power distribution bus at the fusebox.
Pay particular attention to battery terminal posts and any in line maxi power fuses/fusible links and associated connectors, terminals and connections.
Check you havent lost a ground connection between the battery, engine/transmission assy and the general body.
Also worth checking the alternator is working correctly, able to carry the normal running loads reliably. Battery terminal voltage should be approx 14 to 14.5V with engine running when headlights on, A/C blower motor running.
I assume the battery charge condition is ok when these problems occur.
Check electrical and physical condition of the actual Ignition/Accessory switch and associated steering column loom connectors.
Posted on Jun 25, 2009
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Posted on Jan 02, 2017
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