Diagnostic Test

CHECK FOR AN ACTIVE DTC
1. Turn the ignition on and open one of the front doors.
  NOTE:
  A front door must remain open whenever checking or erasing Amplifier (AMP) DTCs.
2. With the scan tool, read Amplifier DTCs and record on the repair order.
3. With the scan tool, erase DTCs.
4. Cycle the ignition switch from on to off, wait five seconds and then back to on.
5. Turn the Radio on.
6. Adjust the speakers to the front and center.
7. With the scan tool, read Amplifier DTCs.
  Did the DTC return?
  
  Yes
  - Go To 2
  No
  - Perform the TESTING FOR AN INTERMITTENT CONDITION procedure. Refer to TESTING FOR AN INTERMITTENT CONDITION .
CHECK THE OPERATION OF THE LEFT REAR DOOR SPEAKER
1. Turn the ignition off.
2. Disconnect the Left Rear Door Speaker harness connector. Refer to SPEAKER, REMOVAL AND INSTALLATION .
3. Measure the resistance between the (X205) Left Rear Speaker (+) circuit and the (X295) Left Rear Speaker (-) circuit at the Left Rear Door Speaker connector.
  Is the resistance of the Left Rear Speaker circuits less than 1.0 Ohm?
  
  Yes
  - Replace the Left Rear Door Speaker in accordance with the Service Information. Refer to SPEAKER, REMOVAL AND INSTALLATION .
  - Perform the BODY VERIFICATION TEST. Refer to BODY VERIFICATION TEST .
  No
  - Go To 3
CHECK THE (X205) LEFT REAR SPEAKER (+) CIRCUIT AND THE (X295) LEFT REAR SPEAKER (-) CIRCUITS FOR A SHORT TOGETHER
1. Disconnect the Amplifier C2 harness connector.
2. Check for continuity between the (X205) Left Rear Speaker (+) circuit and the (X295) Left Rear Speaker (-) circuit at the Amplifier C2 harness connector.
  Is there continuity between the (X205) Left Rear Speaker (+) circuit and the (X295) Left Rear Speaker (-) circuit?
  
  Yes
  - Repair the (X205) Left Rear Speaker (+) circuit for a short to the (X295) Left Rear Speaker (-) circuit.
  - Perform the BODY VERIFICATION TEST. Refer to BODY VERIFICATION TEST .
  No
  - Go To 4
CHECK RELATED HARNESS CONNECTIONS
1. Disconnect all Amplifier 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.
  - Perform a terminal drag test on each connector terminal to verify proper terminal tension.
  Repair any conditions that are found.
5. Reconnect all Amplifier harness connectors. Be certain that all harness connectors are fully seated and the connector locks are fully engaged.
6. Reconnect all in-line harness connectors (if equipped). Be certain that all connectors are fully seated and the connector locks are fully engaged.
7. Reconnect 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. Using the recorded Environmental Data, along with the When Monitored and Set Conditions above, operate the vehicle in the conditions that set the DTC.
10. With the scan tool, read Amplifier DTCs.
  Did the DTC return?
  
  Yes
  - Replace the Amplifier in accordance with the Service information. Refer to AMPLIFIER, REMOVAL AND INSTALLATION .
  - Perform the BODY VERIFICATION TEST. Refer to BODY VERIFICATION TEST .
  No
  - Perform the BODY VERIFICATION TEST. Refer to BODY VERIFICATION TEST .
  - Test complete.