Component Inspection
- Check auto cruise switch
- IG "OFF" and disconnect Cruise switch connector.
- Measure resistance between signal and power terminals of Cruise switch connector with each switch depressed. (Component side)
- Measure resistance between signal and ground terminals of Cruise remote connector with each switch depressed. (Component side)
- Specification:
RESISTANCE SPECIFICATIONItem Resistance (Ω) ON/OFF switch 33.9 kΩ ± 5% between signal and power terminals SET switch 220 Ω ± 5% between signal and ground terminals RESUME switch 910 Ω ± 5% between signal and ground terminals CANCEL switch 0 Ω ± 5% between signal and ground terminals - Is the measured resistance within specification?
YES
- Substitute with a known - good PCM and check for proper operation.
If the problem is corrected, replace PCM and go to VERIFICATION OF VEHICLE REPAIR procedure.
NO
- Substitute with a known - good auto cruise switch and check for proper operation.
If the problem is corrected, replace auto cruise switch and go to VERIFICATION OF VEHICLE REPAIR procedure.
NOTE: There is a memory reset function on scantool that can erase optional parts automatically detected and memorized by PCM. After testing PCM on the vehicle, use this function to reuse the PCM on the others