Skylark V6-3100 3.1L VIN M SFI (1996)
improperly formed or damaged terminals, and poor terminal to wire connection.
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Damaged harness. Inspect the wiring harness for damage. If the harness appears to be OK, disconnect the PCM and turn the ignition ON.
Observe a voltmeter connected to the affected PCM circuit while moving connectors and wiring harnesses related to the PCM circuit. A
change in voltage will indicate the location of the fault.
Test Description
Number(s) below refer to the step number(s) on the Diagnostic Chart.
10. Refer to Instrument Panel for further diagnostics. This diagnostic only covers inputs to the PCM. See: Instrument Panel, Gauges and Warning
Indicators
11. This vehicle is equipped with a PCM which utilizes an Electrically Erasable Programmable Read Only Memory (EEPROM). When the PCM is
being replaced, the new PCM must be programmed. Refer to PCM Replacement and Programming Procedures in Powertrain Control Module. See:
Powertrain Management/Computers and Control Systems/Powertrain Control Module
