Diagnostic Test

CHECK FOR AN INTERMITTENT CONDITION
NOTE:
This vehicle has a Front Tweeter wired in parallel with the Front Speaker.
1. Turn the ignition on.
2. Using the scan tool, record and erase the Radio DTCs.
3. Cycle the ignition switch from on to off, wait five seconds and then back to on.
4. Turn the radio on and set the volume to 25.
5. Adjust the speakers to the front and center.
6. Using the scan tool, read the active Radio DTCs.
  Does the scan tool display active: B1404-1A-FRONT RIGHT AUDIO SPEAKER OUTPUT - CIRCUIT RESISTANCE BELOW THRESHOLD - BASE?
  
  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 BODY VERIFICATION TEST or BODY VERIFICATION TEST (EV) .
CHECK THE RIGHT FRONT SPEAKERS
1. Using the scan tool, erase the DTCs.
2. Turn the ignition off.
3. Disconnect the Right Front Door Speaker harness connector.
4. Disconnect the Right Front Tweeter harness connector from the Right Front Tweeter.
5. Turn the ignition on.
6. Turn the radio on and set the volume to 25.
7. Using the scan tool, read the active Radio DTCs.
  Does the scan tool display active: B1404-1A-FRONT RIGHT AUDIO SPEAKER OUTPUT - CIRCUIT RESISTANCE BELOW THRESHOLD - BASE?
  
  Yes
  - Go To 4
  No
  - Go To 3
CHECK THE RIGHT FRONT SPEAKER
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. Re-connect the Right Front Tweeter harness connector from the Right Front Tweeter.
5. Turn the ignition on.
6. Turn the radio on and set the volume to 25.
7. Using the scan tool, read the active Radio DTCs.
  Does the scan tool display active: B1404-1A-FRONT RIGHT AUDIO SPEAKER OUTPUT - CIRCUIT RESISTANCE BELOW THRESHOLD - BASE?
  
  Yes
  - Replace the Right Front Tweeter in accordance with the Service Information. Refer to SPEAKER, REMOVAL AND INSTALLATION .
  - Perform the BODY VERIFICATION TEST. Refer to BODY VERIFICATION TEST or BODY VERIFICATION TEST (EV) .
  No
  - Replace the Right Front Door Speaker in accordance with the Service Information. Refer to SPEAKER, REMOVAL AND INSTALLATION .
  - Perform the BODY VERIFICATION TEST. Refer to BODY VERIFICATION TEST or BODY VERIFICATION TEST (EV) .
CHECK THE (X202) RIGHT FRONT DOOR SPEAKER (+) CIRCUIT, AND THE (X292) RIGHT FRONT DOOR SPEAKER (-) CIRCUITS FOR A SHORT TOGETHER
1. Disconnect the Radio harness connector.
2. Measure the resistance between the (X202) Right Front Door Speaker (+) circuit, and the (X292) Right Front Door Speaker (-) circuit.
  Is the resistance below 10K Ohms?
  
  Yes
  - Repair the (X202) Right Front Door Speaker (+) circuit, and the (X292) Right Front Door Speaker (-) circuit for a short together.
  - Perform the BODY VERIFICATION TEST. Refer to BODY VERIFICATION TEST or BODY VERIFICATION TEST (EV) .
  No
  - Replace the Radio in accordance with the Service Information. Refer to RADIO, REMOVAL AND INSTALLATION .
  - Perform the BODY VERIFICATION TEST. Refer to BODY VERIFICATION TEST or BODY VERIFICATION TEST (EV) .