Diagnostic Test

CHECK FOR AN ACTIVE DTC
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. With the scan tool, read Radio DTCs and record on the repair order.
3. Cycle the ignition 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. With the scan tool, read Radio DTCs.
  Did the DTC return?
  
  Yes
  - Go To 2
  No
  - 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. If no problems are found, test complete.
  - Perform the BODY VERIFICATION TEST. Refer to BODY VERIFICATION TEST .
CHECK THE LEFT FRONT DOOR SPEAKER
1. Turn the ignition off.
2. Disconnect the Left Front Door Speaker harness connector.
3. Measure the resistance of the speaker between the two terminals.
4. Is the resistance below 3.0 Ohms?
  
  Yes
  - Replace the Left Front Door Speaker in accordance with the Service Information. Refer to SPEAKER, REMOVAL .
  - Perform the BODY VERIFICATION TEST. Refer to BODY VERIFICATION TEST .
  No
  - Go To 3
CHECK THE LEFT FRONT TWEETER
1. Turn the ignition off.
2. Disconnect the Left Front Tweeter harness connector.
3. Measure the resistance of the speaker between the two terminals.
4. Is the resistance below 3.0 Ohms?
  
  Yes
  - Replace the Left Front Tweeter in accordance with the Service Information. Refer to SPEAKER, REMOVAL .
  - Perform the BODY VERIFICATION TEST. Refer to BODY VERIFICATION TEST .
  No
  - Go To 4
CHECK THE (X201) LEFT FRONT DOOR SPEAKER (+) CIRCUIT FOR AN OPEN
1. Disconnect the Radio harness C1 connector.
2. Measure the resistance of the (X201) Left Front Door Speaker (+) circuit between the Radio C1 harness connector and the Left Rear Speaker harness connector.
  Is the resistance below 3.0 Ohms?
  
  Yes
  - Go To 5
  No
  - Repair the (X201) Left Front Door Speaker (+) circuit for an open.
  - Perform the BODY VERIFICATION TEST. Refer to BODY VERIFICATION TEST .
CHECK THE (X291) LEFT FRONT DOOR SPEAKER (-) CIRCUIT FOR AN OPEN
1. Measure the resistance of the (X291) Left Front Door Speaker (-) circuit between the Radio harness C1 connector and the Left Front Door Speaker harness connector.
  Is the resistance below 3.0 Ohms?
  
  Yes
  - Replace the Radio in accordance to the service information. Refer to RADIO, REMOVAL .
  - Perform the BODY VERIFICATION TEST. Refer to BODY VERIFICATION TEST .
  No
  - Repair the (X291) Left Front Door Speaker (-) circuit for an open.
  - Perform the BODY VERIFICATION TEST. Refer to BODY VERIFICATION TEST .