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 IMPACT/PRESSURE 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 Impact/Pressure 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 and in-line connectors using test kit 2022900080 for back probing the terminal will prevent vehicle wiring harness connector damage during diagnostic procedures.
4. Measure the voltage between ground and the Impact/Pressure Sensor Signal circuits at the Impact Sensor harness connector.
  Is there any voltage present?
  
  Yes
  - Repair the Impact/Pressure 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 IMPACT/PRESSURE SENSOR SIGNAL AND RETURN CIRCUITS FOR A SHORT TO GROUND
1. Check for continuity between ground and both of the Impact/Pressure Sensor Signal circuits at the Impact/Pressure Sensor harness connector.
  Is there continuity between ground and either circuit?
  
  Yes
  - Repair the Impact/Pressure 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 IMPACT/PRESSURE SENSOR SIGNAL AND RETURN CIRCUITS FOR A SHORT TOGETHER
1. Check for continuity between the signal circuit and the return circuit at the Impact/Pressure 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 IMPACT/PRESSURE SENSOR SIGNAL AND RETURN CIRCUITS FOR AN OPEN OR HIGH RESISTANCE
1. Measure the resistance of the Impact/Pressure Sensor signal circuit and the return circuit from the Impact/Pressure Sensor harness connector to the ORC harness connector.
  Is the resistance below 3.0 Ohms?
  
  Yes
  - Go To 6
  No
  - Repair the Impact/Pressure 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 IMPACT/PRESSURE SENSOR
1. Replace the Impact/Pressure Sensor in accordance with the Service Information. Refer to SENSOR, IMPACT, REMOVAL AND INSTALLATION .
2. Perform the RESTRAINTS SYSTEM VERIFICATION TEST. Refer to: RESTRAINTS SYSTEM VERIFICATION TEST .
  Did the DTC return?
  
  Yes
  
  WARNING:
  If the Occupant Restraint Controller (ORC) is dropped at any time, it must be replaced. Failure to follow these instructions may result in possible serious or fatal injury.
  - Replace the ORC in accordance with the Service Information. Refer to: OCCUPANT RESTRAINT CONTROLLER (ORC), REMOVAL AND INSTALLATION .
  - Perform the RESTRAINTS SYSTEM VERIFICATION TEST. Refer to: RESTRAINTS SYSTEM VERIFICATION TEST .
  No
  - Test complete.