Signal Circuit Inspection

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