Intermittent fault
- Ignition off.
Check the control module and transmission connectors. Check the ground terminal for the gear position sensor. Check for intermittent loose connections (terminals). Check for contact resistance and oxidation.
Check the wiring between the transmission connector (control module side):
- terminal #F (#A6) and control module terminal #A46 (#A46) "A"
- terminal #G (#A7) and control module terminal #A64 (#B4) "B"
- terminal #H (#A8) and control module terminal #A45 (#A45) "C"
- terminal #J (#A9) and control module terminal #A63 (#B3) "PA".
check for an intermittent open-circuit. Check for an intermittent short-circuit to ground. Check for an intermittent short-circuit to supply voltage.
Remedy as necessary.
Other information:
- To connect the breakout box to the control module, see Connecting the breakout box
- To connect the breakout box to the transmission connector, see Connecting the breakout box, GM automatic transmissions
- For information about signals, see Signal specification
- See Checking wiring and terminals
- Continue
Refer to Information