Question about 1998 BMW 5 Series
Most likely it is a wiring harness problem. maybe rubbing on the steering shaft at some point. May have worn through and broke at the wear spot. The security wiring for the key coder decoder circuit usually is in a harness going to the ignition switch. If it shorts or seperates it will not allow the engine to operate due too no signal to PCM (power control module). The coder/decoder reads the chip in the key and determines if the engine is allowed to be started.
Posted on Oct 14, 2010
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Posted on Jan 02, 2017
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