Question about 1996 Volkswagen Jetta
96 Jetta must be roll-started,the hazard lights flash for several minutes then stop,the speedometer stopped working,and now the trunk lid won't open.I have a Chilton manual,but I'm not having much luck.Any help is welcome. I have a problem with the speedometer, odometer, and the cruise control going out at the same time. I also have an airbag light that won't go off. I had diagnostic code PO 501 (speed sensor), I bought the speed sensor and replaced it and I am still getting the 501 code. I am guessing that the ECU is messed up or a wire is disconnected. Does anyone have any answers?
Chase grounds first (start at the battery), sounds like you have a case
of the missing ground which will force other semi related circuits to
activate or cease to function as they are being used as a ground for
the powered circuit.
I use one side of a jumper cable when searching these out. This allows me to reestablish the ground where ground might be missing. When you find it, step back and re cause the fault again to make sure you have it right rather than just a coincidence.
Secondly I would look for loose connection at the firewall where the two harnesses come together or any other place where the harnesses are plugged one into another as well as the main fuse box and relay box.
Inspect these connectors carefully and make sure the tiny tabs in the individual connectors are all intact in the female end as well as the male end.
Posted on May 30, 2009
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Posted on Jan 02, 2017
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