Signal Circuit Inspection

Check Open in signal circuit.
1. Key "OFF".
2. Disconnect CMPS connector.
3. Key "ON".
4. Measure the voltage between terminal 2 of CMPS harness connector and chassis ground.
  Specification: Approx 12V
5. Is the measured voltage within specification?
  YES
  - Go to 2 "Short to power circuit inspection" procedure.
  NO
  - Repair Open in signal circuit and then, go to "VERIFICATION OF VEHICLE REPAIR " procedure.
Check Short to power in signal circuit.
1. Key "OFF".
2. Disconnect CMPS connector and ECM/PCM connector.
3. Measure the resistance between terminal 1 and 2 of CMPS harness connector.
  Specification: Infinite
4. Is the measured resistance within specifications?
  YES
  - Go to "COMPONENT INSPECTION " procedure.
  NO
  - Repair Short to power in signal circuit and then, go to "VERIFICATION OF VEHICLE REPAIR " procedure.