Shorted the electrical, now no speedometer - Ford Forum - Enthusiast Forums for Ford Owners

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Old 11-24-2017, 09:30 PM
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Join Date: May 2016
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Default Shorted the electrical, now no speedometer

no codes.
Working on car and shorted that PAM module (Parking assist module) up on that deck in the back window, under the card board. Drilled through the harness.

Now speedometer and odometer don't work, traction control light on, ABS light on, and brake light on.
Spliced the harness carfully, and correctly and that didn't help.

Did I blow the PCM (Powertrain control module), Trasmission speed sensor, and ABS module? And where are the all located?

There is a car in the junk yard exact same model, same year, that I could pull them off. 2005 limited awd cvt trans. I probably wouldn't have to program them.

All the modules must be connected to each other and that's what happen. I've been working on this for three full days. Frustrated. all for that back up sensors.
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Old 11-25-2017, 06:11 AM
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Join Date: Jun 2010
Posts: 8,310

Have you tried disconnecting the negative battery cable and holding the negative battery cable end on to the positive cable end for 20 min to allow memory to go away.
This will also erase any radio settings , seat settings etc. but will get rid of gremlins.
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Old 11-25-2017, 11:04 AM
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Join Date: Jun 2010
Posts: 8,310

How many wires did you manage to cut , chafe, or separate?
Did you catch the damage before turning on the key?
Did you check for any blown fuses?
There are times after a short or open is corrected , the system will function again after some running.
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