Diagnostic Test

CHECK FOR AN INTERMITTENT CONDITION
NOTE:
This vehicle has a Front Tweeter Speaker wired in parallel with the Front Door Speaker.
1. Turn the ignition on.
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: B1400-11-FRONT LEFT AUDIO SPEAKER OUTPUT - CIRCUIT SHORT TO GROUND ?
  
  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 LEFT FRONT SPEAKERS
1. Using the scan tool, erase the DTCs.
2. Turn the ignition off.
3. Disconnect the Left Front Door Speaker harness connector from the Left Front Door Speaker.
4. Disconnect the Left Front Tweeter Speaker harness connector from the Left Front Tweeter 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: B1400-11-FRONT LEFT AUDIO SPEAKER OUTPUT - CIRCUIT SHORT TO GROUND?
  
  Yes
  - Go To 4
  No
  - Go To 3
CHECK THE LEFT FRONT TWEETER 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 Left Front Door Speaker harness connector to the Left Front Door 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: B1400-11-FRONT LEFT AUDIO SPEAKER OUTPUT - CIRCUIT SHORT TO GROUND ?
  
  Yes
  - Replace the Left Front Door Speaker in accordance with the Service Information.
  - Perform the BODY VERIFICATION TEST. Refer to BODY VERIFICATION TEST or BODY VERIFICATION TEST (EV) .
  No
  - Replace the Left Front Tweeter Speaker in accordance with the Service Information.
  - Perform the BODY VERIFICATION TEST. Refer to BODY VERIFICATION TEST or BODY VERIFICATION TEST (EV) .
CHECK THE (X291) LEFT FRONT SPEAKER (+) CIRCUIT FOR A SHORT TO GROUND
1. Turn the ignition off.
2. Disconnect the Radio C1 harness connector.
3. Measure the resistance between ground and the (X291) Left Front Speaker (+) circuit.
  Is the resistance below 5.0 Ohms?
  
  Yes
  - Repair the (X291) Left Front Speaker (+) circuit for a short to ground.
  - Perform the BODY VERIFICATION TEST. Refer to BODY VERIFICATION TEST or BODY VERIFICATION TEST (EV) .
  No
  - Go To 5
CHECK THE (X201) LEFT FRONT SPEAKER (-) CIRCUIT FOR A SHORT TO GROUND
1. Measure the resistance between ground and the (X201) Left Front Speaker (-) circuit.
  Is the resistance below 5.0 Ohms?
  
  Yes
  - Repair the (X201) Left Front Speaker (-) circuit for a short to ground.
  - 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.
  - Perform the BODY VERIFICATION TEST. Refer to BODY VERIFICATION TEST or BODY VERIFICATION TEST (EV) .