Diagnostic Test

WARNING: This page is about a different car, the 2016 Jeep Wrangler and 2015 Jeep Wrangler. However, it is still accessible from the selected car via links, so may be relevant.

CHECK FOR AN INTERMITTENT CONDITION
NOTE:
This vehicle has a Front Tweeter wired in parallel with the Front Speaker.
1. Turn the ignition on and open one of the front doors.
  NOTE:
  A front door must remain open whenever checking or erasing Radio DTCs.
2. Using the scan tool, record and erase the Radio DTCs.
3. Turn the Radio on.
4. Adjust the speakers to the front and center.
5. Using the scan tool, read the active Radio DTCs.
  Does the scan tool read: B1405-FRONT RIGHT AUDIO SPEAKER OUTPUT CIRCUIT LOW?
  
  Yes
  - Go To 2
  No
  - Test complete, the condition or conditions that originally set this DTC are not present at this time. Using the wiring diagrams as a guide, check all related splices and connectors for signs of water intrusion, corrosion, pushed out or bent terminals and correct pin tension.
  - Perform the BODY VERIFICATION TEST. Refer to STANDARD PROCEDURE .
RIGHT FRONT SPEAKERS

Fig 1: Right Front Speakers Connector End Views
Courtesy of CHRYSLER GROUP, LLC
1. Make sure one of the front doors is still open.
2. Using the scan tool, erase the DTCs.
3. Turn the ignition off.
4. Disconnect the Right Front Speaker harness connector from the Right Front Speaker.
5. Disconnect the Right Front Tweeter harness connector from the Right Front Tweeter.
6. Turn the ignition on.
7. Turn the radio on.
8. Using the scan tool, read the active Radio DTCs.
  Does the scan tool read: B1405-FRONT RIGHT AUDIO SPEAKER OUTPUT CIRCUIT LOW?
  
  Yes
  - Go To 4
  No
  - Go To 3
RIGHT FRONT SPEAKER

Fig 2: Right Front I/P Speaker Connector End View
Courtesy of CHRYSLER GROUP, LLC
1. Make sure one of the front doors is still open.
2. Using the scan tool, erase the DTCs.
3. Turn the ignition off.
4. Reconnect the Right Front Speaker harness connector to the Right Front Speaker.
5. Turn the ignition on.
6. Turn the radio on.
7. Using the scan tool, read the active Radio DTCs.
  Does the scan tool read: B1405-FRONT Right AUDIO SPEAKER OUTPUT CIRCUIT LOW?
  
  Yes
  - Replace the Right Front Speaker in accordance with the Service Information.
  - Perform the BODY VERIFICATION TEST. Refer to STANDARD PROCEDURE .
  No
  - Replace the Right Front Tweeter in accordance with the Service Information.
  - Perform the BODY VERIFICATION TEST. Refer to STANDARD PROCEDURE .
CHECK THE (X202) RIGHT FRONT DOOR SPEAKER (+) CIRCUIT FOR A SHORT TO GROUND

Fig 3: Checking Right Front Door Speaker (+) Circuit For A Short To Ground
Courtesy of CHRYSLER GROUP, LLC
1. Turn the ignition off.
2. Disconnect the Radio C2 harness connector.
3. Measure the resistance between ground and the (X202) Right Front Door Speaker (+) circuit.
  Is the resistance below 5.0 Ohms?
  
  Yes
  - Repair the (X202) Right Front Door Speaker (+) circuit for a short to ground.
  - Perform the BODY VERIFICATION TEST. Refer to STANDARD PROCEDURE .
  No
  - Go To 5
CHECK THE (X292) RIGHT FRONT DOOR SPEAKER (-) CIRCUIT FOR A SHORT TO GROUND

Fig 4: Checking Right Front Door Speaker (-) Circuit For A Short To Ground
Courtesy of CHRYSLER GROUP, LLC
1. Measure the resistance between ground and the (X292) Right Front Door Speaker (-) circuit.
  Is the resistance below 5.0 Ohms?
  
  Yes
  - Repair the (X292) Right Front Door Speaker (-) circuit for a short to ground.
  - Perform the BODY VERIFICATION TEST. Refer to STANDARD PROCEDURE .
  No
  - Replace the Radio in accordance with the Service Information.
  - Perform the BODY VERIFICATION TEST. Refer to STANDARD PROCEDURE .