Diagnostic Test

CHECK FOR AN ACTIVE DTC
1. With the scan tool, read ORC DTCs and record on the repair order.
2. Record the Environmental Data.
3. With the scan tool, erase DTCs.
4. Using the recorded Environmental Data, along with the When Monitored and Set Conditions above, operate the vehicle in the conditions that set the DTC.
5. With the scan tool, read ORC DTCs.
  Did the DTC return?
  
  Yes
  - Go To 2
  No
  - Perform the RESTRAINTS SYSTEM INTERMITTENT TEST. Refer to RESTRAINTS SYSTEM INTERMITTENT TEST .
CHECK THE PASSENGER PRESENCE DETECTOR (PPD) SENSOR SIGNAL AND RETURN CIRCUITS FOR A SHORT TO VOLTAGE
WARNING:
Turn the ignition off, disconnect the battery and wait two minutes before proceeding. Failure to follow these instructions may result in possible serious or fatal injury.
1. Disconnect the PPD Sensor harness connector.
2. Disconnect the ORC Module harness connectors.
3. Turn the ignition on.
  NOTE:
  Probing of the circuit cavities at the Occupant Restraint Controller (ORC) body harness connectors or in- line connectors with an approved test leads from the test lead kit 10159-6 to prevent vehicle wiring harness connector damage during diagnostic procedures.
4. Measure the voltage between ground and the PPD Sensor Signal circuits at the PPD harness connector.
  Is there any voltage present?
  
  Yes
  - Repair the PPD Sensor circuit(s) for a short to voltage.
  - Perform the RESTRAINTS SYSTEM VERIFICATION TEST. Refer to RESTRAINTS SYSTEM VERIFICATION TEST .
  No
  - Go To 3
CHECK THE PASSENGER PRESENCE DETECTOR (PPD) SENSOR SIGNAL AND RETURN CIRCUITS FOR A SHORT TO GROUND
1. Check for continuity between ground and both of the PPD Sensor Signal circuits at the PPD Sensor harness connector.
  Is there continuity between ground and either circuit?
  
  Yes
  - Repair the PPD Sensor Signal circuit(s) for a short to ground.
  - Perform the RESTRAINTS SYSTEM VERIFICATION TEST. Refer to RESTRAINTS SYSTEM VERIFICATION TEST .
  No
  - Go To 4
CHECK THE PASSENGER PRESENCE DETECTOR (PPD) SENSOR SIGNAL AND RETURN CIRCUITS FOR A SHORT TOGETHER
1. Check for continuity between the signal circuit and the return circuit at the PPD Sensor harness connector.
  Is there continuity between the signal circuit and the return circuit?
  
  Yes
  - Repair the signal circuit for a short to the return circuit.
  - Perform the RESTRAINTS SYSTEM VERIFICATION TEST. Refer to RESTRAINTS SYSTEM VERIFICATION TEST .
  No
  - Go To 5
CHECK THE PASSENGER PRESENCE DETECTOR (PPD) SENSOR SIGNAL AND RETURN CIRCUITS FOR AN OPEN OR HIGH RESISTANCE
1. Measure the resistance of the PPD Sensor signal circuit and the return circuit from the PPD Sensor harness connector to the ORC harness connector.
  Is the resistance below 3.0 Ohms?
  
  Yes
  - Go To 6
  No
  - Repair the PPD Sensor signal circuit and/or the return circuit for an open or high resistance.
  - Perform the RESTRAINTS SYSTEM VERIFICATION TEST. Refer to RESTRAINTS SYSTEM VERIFICATION TEST .
REPLACE THE PASSENGER PRESENCE DETECTOR (PPD) SENSOR
1. Replace the PPD Sensor in accordance with the Service Information. Refer to SENSOR, OCCUPANT DETECTION, REMOVAL AND INSTALLATION .
2. Perform the RESTRAINTS SYSTEM VERIFICATION TEST. Refer to RESTRAINTS SYSTEM VERIFICATION TEST .
  Did the DTC return?
  
  Yes
  - Replace the Occupant Restraint Controller (ORC) in accordance with Service Information. Refer to MODULE, OCCUPANT RESTRAINT CONTROLLER, REMOVAL AND INSTALLATION .
  - Perform the RESTRAINTS SYSTEM VERIFICATION TEST. Refer to RESTRAINTS SYSTEM VERIFICATION TEST .
  No
  - Test complete.