Diagnostic Test

WARNING: This page is about a different car, the 2020 Jeep Renegade. However, it is still accessible from the selected car via links, so may be relevant.

CHECK FOR AN ACTIVE DTC
1. With the scan tool, read Amplifier DTCs and record on the repair order.
2. With the scan tool, erase DTCs.
3. Using the When Monitored and Set Conditions above, operate the vehicle in the conditions that set the DTC.
4. 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 .
LEFT FRONT SPEAKER ELECTRICAL CONNECTION CHECK
1. Turn the ignition off.
2. Disconnect the Left Front Speaker and Amplifier harness connectors.
3. Check for the presence of loose or damaged connections at the Left Front Speaker and Amplifier harness connectors.
  Were there signs of any of the connections being loose or damaged?
  
  Yes
  - Restore the correct connections.
  - Perform the BODY VERIFICATION TEST. Refer to BODY VERIFICATION TEST .
  No
  - Go To 3
CHECK THE LEFT FRONT SPEAKER FOR A SHORT TO GROUND
1. Check for continuity between ground and the Left Front Speaker Signal circuit at the Left Front Speaker harness connector.
  Was a short to ground detected?
  
  Yes
  - Repair the Left Front Speaker Signal circuit for a short to ground.
  - Perform the BODY VERIFICATION TEST. Refer to BODY VERIFICATION TEST .
  No
  - Go To 4
CHECK RELATED HARNESS CONNECTIONS
1. Disconnect all AMP Module 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 pins for the following conditions:
  - Proper connector installation.
  - Damaged connector locks.
  - Corrosion.
  - Other signs of water intrusion.
  - Weather seal damage (if equipped).
  - Bent pins.
  - Overheating due to a poor connection (pin may be discolored due to excessive current draw).
  - Terminals that have been pushed back into the connector cavity.
  - Perform a pin drag test on each connector pin to verify proper pin tension.
  Repair any conditions that are found.
5. Reconnect all AMP Module 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 AMP Module DTCs.
  Did the DTC return?
  
  Yes
  - Replace the AMP Module 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.