Diagnostic Test

CHECK FOR AN ACTIVE DTC
1. Test drive or operate the vehicle in accordance with the When Monitored and Set Conditions.
2. With the scan tool, read and record DTCs and Freeze Frame data on the repair order.
  Is the DTC active or pending?
  
  Yes
  - Go To 2
  No
  - Perform the INTERMITTENT CONDITION diagnostic procedure. Refer to INTERMITTENT CONDITION .
INSPECT THE ACTIVE EXHAUST VALVE 1 ACTUATOR FOR SIGNS OF PHYSICAL DAMAGE
1. Turn the ignition off.
2. Inspect the Active Exhaust Valve 1 Assembly and connector for damage due to road debris. Remove the actuator from the valve assembly, inspect the transmission spring, confirm the butterfly valve and spring are free and functional.
  Is the Active Exhaust Valve 1 Assembly or connector damaged or disconnected?
  
  Yes
  - Perform the appropriate repair.
  - Perform the POWERTRAIN VERIFICATION TEST. Refer to POWERTRAIN VERIFICATION TEST .
  No
  - Go To 3
INSTALL A NEW ACTIVE EXHAUST VALVE 1 ACTUATOR AND RETEST FOR DTC
1. Install a new Active Exhaust Valve 1 Actuator in accordance with the Service Information.
2. Turn the ignition on.
3. With the scan tool, erase DTCs.
4. Start the engine and allow it to idle for a minimum of two minutes.
5. Test drive or operate the vehicle in accordance with the When Monitored and Set Conditions.
6. With the scan tool, read DTCs.
  Did the DTC return?
  
  Yes
  - Go To 4
  No
  - Repair complete.
  - Perform the POWERTRAIN VERIFICATION TEST. Refer to POWERTRAIN VERIFICATION TEST .
CHECK RELATED HARNESS CONNECTIONS
1. Disconnect all PCM harness connectors.
2. Disconnect all related in-line harness connections (if equipped).
3. Disconnect the related component harness connectors.
4. Inspect harness connectors, component connectors, and all male and female terminals for the following conditions:
  - Proper connector installation.
  - Damaged connector locks.
  - Corrosion.
  - Other signs of water intrusion.
  - Weather seal damage (if equipped).
  - Bent terminals.
  - Overheating due to a poor connection (terminal may be discolored due to excessive current draw).
  - Terminals that have been pushed back into the connector cavity.
  - Check for spread terminals and verify proper terminal tension.
  Repair any conditions that are found.
5. Connect all PCM harness connectors. Be certain that all harness connectors are fully seated and the connector locks are fully engaged.
6. Connect all in-line harness connectors (if equipped). Be certain that all connectors are fully seated and the connector locks are fully engaged.
7. Connect all related component harness connectors. Be certain that all connectors are fully seated and the connector locks are fully engaged.
8. With the scan tool, erase DTCs.
9. Test drive or operate the vehicle in accordance with the when monitored and set conditions.
10. With the scan tool, read DTCs.
  Did the DTC return?
  
  Yes
  - Replace and program the Powertrain Control Module (PCM) in accordance with the Service Information. Refer to MODULE, POWERTRAIN CONTROL (PCM), REMOVAL .
  - Perform the POWERTRAIN VERIFICATION TEST. Refer to POWERTRAIN VERIFICATION TEST .
  No
  - Repair the poor connections.
  - Perform the POWERTRAIN VERIFICATION TEST. Refer to POWERTRAIN VERIFICATION TEST .