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 .
  - Probing of the circuit cavities at the ORC Module body harness connectors or vehicle connectors is only to be done with a approved test lead from the test lead 10159-6 or the use of Breakout Box 8443-55 to prevent vehicle wiring harness connector damage during diagnostic procedures.
DETERMINE ACTIVE OR STORED DTC
1. Turn the ignition on.
2. With the scan tool, read all active ORC DTCs.
  Is the DTC active or stored?
  
  ORC - ACTIVE DTC
  - Go To 3
  ORC - STORED DTC
  - Perform the RESTRAINTS SYSTEM VERIFICATION TEST. Refer to RESTRAINTS SYSTEM VERIFICATION TEST .
CHECK FOR A SHORT TO GROUND ON THE FUSED RUN CIRCUIT WITH THE ORC CONNECTED
WARNING:
To avoid serious or fatal injury, 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.

NOTE:
Check the connectors - Clean and repair as necessary.
1. Measure the resistance between the Power Distribution Center fused run circuit fuse 54 output cavity and ground.
  Is the resistance 100 Ohms or less?
  
  Yes
  - Go To 4
  No
  - Replace the Power Distribution Center fused run fuse.
  - Perform the RESTRAINTS SYSTEM VERIFICATION TEST. Refer to RESTRAINTS SYSTEM VERIFICATION TEST .
CHECK FOR A SHORT TO GROUND ON THE FUSED RUN CIRCUIT WITH THE ORC DISCONNECTED
NOTE:
Check the connectors - Clean and repair as necessary.
1. Disconnect the ORC harness connector.
2. Connect the appropriate test lead to the DVOM.
3. Measure the resistance between the Power Distribution Center fused run circuit output and ground.
  Is the resistance 100 Ohms or less on the Fused circuit ?
  
  Yes
  - Go To 5
  No
  
  WARNING:
  If the Occupant Restraint Controller (ORC) is dropped at any time, it must be replaced. Failure to take the proper precautions can result in accidental airbag deployment. Failure to follow these instructions may result in possible serious or fatal injury.
  - Replace the ORC in accordance with Service Information. Refer to MODULE, OCCUPANT RESTRAINT CONTROLLER, REMOVAL .
  - Perform the RESTRAINTS SYSTEM VERIFICATION TEST. Refer to RESTRAINTS SYSTEM VERIFICATION TEST .
CHECK FOR A SHORT TO GROUND ON THE FUSED RUN CIRCUIT
1. Open Run Circuit at Power Distribution Center.
2. Measure the resistance between the Fused run circuit at the appropriate terminals of the ORC module body harness connector and ground.
  Is the resistance 100 Ohms or less?
  
  Yes
  - Repair the Fuse circuit for a short to ground.
    Using the wiring diagram/schematic as a guide, inspect the related wiring and connectors. Look for chafed, pierced, pinched, or partially broken wires and broken, bent, pushed out, spread, corroded, or contaminated terminals.
  - Perform the RESTRAINTS SYSTEM VERIFICATION TEST. Refer to RESTRAINTS SYSTEM VERIFICATION TEST .
  No
  - Replace the Power Distribution Center and reinstall fuse in accordance with the Service Information.
  - Perform the RESTRAINTS SYSTEM VERIFICATION TEST. Refer to RESTRAINTS SYSTEM VERIFICATION TEST .
CHECK FOR A SHORT TO GROUND ON THE (F201) FUSED IGNITION SWITCH OUTPUT (RUN/START) CIRCUIT WITH THE ORC CONNECTED
WARNING:
To avoid serious or fatal injury, 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.

NOTE:
Check connectors - Clean and repair as necessary.
1. Measure the resistance between the Power Distribution Center fused (F201) Fused Ignition Switch Output (Run/Start) Circuit terminal output and ground.
  Is the resistance 100 Ohms or less?
  
  Yes
  - Go To 7
  No
  - Replace the Power Distribution Center run/start fuse.
  - Perform the RESTRAINTS SYSTEM VERIFICATION TEST. Refer to RESTRAINTS SYSTEM VERIFICATION TEST .
CHECK FOR A SHORT TO GROUND ON THE (F201) FUSED IGNITION SWITCH OUTPUT (RUN/START) CIRCUIT WITH THE ORC DISCONNECTED
NOTE:
Check connectors - Clean and repair as necessary.
1. Disconnect the ORC harness connector.
2. Connect the appropriate test lead to the DVOM.
3. Measure the resistance between the (F201) Fused Ignition Switch Output (Run/Start) Circuit output and ground.
  Is the resistance 100 Ohms or less on the (F201) Fused Ignition Switch Output (Run/Start) Circuit ?
  
  Yes
  - Go To 8
  No
  
  WARNING:
  If the Occupant Restraint Controller (ORC) is dropped at any time, it must be replaced. Failure to take the proper precautions can result in accidental airbag deployment and serious or fatal injury.
  - Replace the ORC in accordance with Service Information. Refer to MODULE, OCCUPANT RESTRAINT CONTROLLER, REMOVAL .
  - Perform the RESTRAINTS SYSTEM VERIFICATION TEST. Refer to RESTRAINTS SYSTEM VERIFICATION TEST .
CHECK FOR A SHORT TO GROUND ON THE (F201) FUSED IGNITION SWITCH OUTPUT (RUN/START) CIRCUIT WITH THE POWER DISTRIBUTION CENTER DISCONNECTED
1. Disconnect circuit (F201) Fused Ignition Switch Output (Run/Start) Circuit from the Power Distribution Center.
2. Connect the appropriate test lead to the DVOM.
3. Measure the resistance between the (F201) Fused Ignition Switch Output (Run/Start) Circuit terminal and ground.
  Is the resistance 100 Ohms or less?
  
  Yes
  - Repair the (F201) Fused Ignition Switch Output (Run/Start) Circuit for a short to ground.
    Using the wiring diagram/schematic as a guide, inspect the related wiring and connectors. Look for chafed, pierced, pinched, or partially broken wires and broken, bent, pushed out, spread, corroded, or contaminated terminals.
    
    Replace the Rear Power Distribution Center run/start fuse.
  - Perform the RESTRAINTS SYSTEM VERIFICATION TEST. Refer to RESTRAINTS SYSTEM VERIFICATION TEST .
  No
  - Replace the Power Distribution Center and reinstall run/start fuse in accordance with the Service Information.
  - Perform the RESTRAINTS SYSTEM VERIFICATION TEST. Refer to RESTRAINTS SYSTEM VERIFICATION TEST .