Diagnostic Test

DTC IS ACTIVE
1. Ignition on, engine not running.
2. With the scan tool, erase DTCs in the PCM.
3. Perform several ignition key cycles, pausing for at least one minute between each cycle.
4. Turn the ignition on.
5. With the scan tool, select View DTCs.
  Did this DTC return?
  
  Yes
  - Go To 2.
  No
  - Refer to STANDARD PROCEDURE and perform the INTERMITTENT DTC diagnostic procedure.
ASD RELAY
1. Ignition off.
2. Install a known good relay in place of the ASD Relay.
3. Turn the ignition on.
4. With the scan tool, erase DTCs in the PCM.
5. Perform several ignition key cycles, pausing for at least one minute between each cycle.
6. Turn the ignition on.
7. With the scan tool, select View DTCs.
  Did this DTC return?
  
  Yes
  - Go To 3.
  No
  - Repair complete.
  - Refer to STANDARD PROCEDURE and perform the PCM VERIFICATION TEST.
CHECK THE (K51) ASD RELAY CONTROL CIRCUIT FOR A SHORT TO GROUND
1. Turn the ignition off.
2. Remove the ASD Relay.
3. Disconnect the PCM C1 harness connector.
4. Measure the resistance between ground and the (K51) ASD Relay Control circuit at terminal 85 of the ASD Relay connector.
  Was the resistance above 10k Ohms?
  
  Yes
  - Go To 4.
  No
  - Repair the (K51) ASD Relay Control circuit for a short to ground.
  - Refer to STANDARD PROCEDURE and perform the PCM VERIFICATION TEST.
CHECKING THE PCM POWER AND GROUND CIRCUITS
1. Install the ASD relay.
2. Refer to DIAGNOSIS AND TESTING and perform the diagnostic procedure for CHECKING THE PCM POWER AND GROUND CIRCUITS.
  Were any problems found?
  
  Yes
  - Repair the PCM power and ground circuit(s) as necessary.
  - Refer to STANDARD PROCEDURE and perform the PCM VERIFICATION TEST.
  No
  - Go To 5.
POWERTRAIN CONTROL MODULE
1. Using the wiring diagram/schematic as a guide, inspect the Powertrain Control Module wiring and connectors.
2. Look for any chafed, pierced, pinched, or partially broken wires.
3. Look for broken, bent, pushed out or corroded terminals.
4. Check for proper PCM power supply from the ignition switch and the ASD relay. Check the PCM for proper ground supply.
5. Perform any Technical Service Bulletins that may apply.
  Were any problems found?
  
  Yes
  - Repair as necessary.
  - Refer to STANDARD PROCEDURE and perform the PCM VERIFICATION TEST.
  No
  - Replace the Powertrain Control Module in accordance with the service information. Refer to MODULE, POWERTRAIN CONTROL, REMOVAL .
  - Refer to STANDARD PROCEDURE and perform the PCM VERIFICATION TEST.