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The only reset I know of on OBD-1 systems (like yours) is to disconnect battery for a couple of minutes. Take off the negative cable for a few minutes.
maybe a diagnostic or limp mode, try resetting codes / ecu by disconnecting and reconnecting the battery. If that fails check for loose or disconnected electrical wires.
Hi, The clicking you hear is the anti theft system has been triggered, beneath the steering column pull down the fuse cover and locate the (ECU) fuse Labeled so on cover and owners manual. Remove (ECU) fuse turn ignition to on only, do not start, wait 3 minutes turn off ignition remove key, reinstall (ECU) fuse. Try starting Vehicle!
never seen a deville so cant help,but it sounds like a relay is not being controled by the ECU and to locate this fault need special software and again to reset vehicle .sorry i couldnt tell you more know the fault but without dealer software ??i could only rewire to make it work
The engine computer (PCM/ECU) is located behind the passenger side kick panel. The pictures above should help. Hope it does.....
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