Question about 1991 Ford Bronco
The shift module has a self test light on it. But I don't know where it is?
The truck has the 402 v8 in it.
It is the Power control module,located behind the side kick panel in the passenger side floor board.
Posted on Jun 03, 2009
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Posted on Jan 02, 2017
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Ground Circuit for ground
Diagnostic enable circuit for an open or high resistance
Transfer case shift control switch connector
If more than one code is stored, the first code will blink, followed by a 3 second pause and then the second code will blink.
This sequence will continue until PIN 13 on the DLC is no longer grounded.
If the TCCM will not communicate the presence or absence of DTCs, test the above circuits in Self-Test Step 2. If the circuits are complete, then replace the TCCM. Refer to Transfer Case Shift Control Module Replacement .
Let me know if you have any codes , I have code definitions an procedures.
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