Diagnostic Test

CHECK FOR AN ACTIVE DTC
NOTE:
Verify the connection of the ANC Microphone 1 harness connector.
1. Turn the ignition on.
2. With the scan tool, read DTCs.
  Is the DTC active?
  
  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 .
CHECK THE (X460) ANC MICROPHONE 1 (+) CIRCUIT FOR A SHORT TO VOLTAGE
1. Turn the ignition off.
2. Disconnect the Amplifier C2 harness connector.
3. Turn the ignition on.
4. Measure the voltage between ground and the (X460) ANC Microphone 1 (+) circuit at the Amplifier C2 harness connector.
  Is there any voltage present?
  
  Yes
  - Repair the (X460) ANC Microphone 1 (+) circuit for a short to voltage.
  - Perform the BODY VERIFICATION TEST. Refer to BODY VERIFICATION TEST .
  No
  - Go To 3
CHECK THE (X461) ANC MICROPHONE 1 (-) CIRCUIT FOR A SHORT TO VOLTAGE
1. Measure the voltage between ground and the (X461) ANC Microphone 1 (-) circuit at the Amplifier C2 harness connector.
  Is there any voltage present?
  
  Yes
  - Repair the (X461) ANC Microphone 1 (-) circuit for a short to voltage.
  - Perform the BODY VERIFICATION TEST. Refer to BODY VERIFICATION TEST .
  No
  - Replace the Amplifier in accordance with the Service Information. Refer to AMPLIFIER, REMOVAL .
  - Perform the BODY VERIFICATION TEST. Refer to BODY VERIFICATION TEST .