Inspection and Verification

INSPECTION AND VERIFICATION

1. Verify the customer concern.

Visual Inspection Chart:

2. Visually inspect for obvious signs of mechanical or electrical damage.
3. If an obvious cause for an observed or reported concern is found, correct the cause (if possible) before proceeding to the next step.
4. If the cause is not visually evident, connect the diagnostic tool to the data link connector (DLC) and select the vehicle to be tested from the diagnostic tool menu. If the diagnostic tool does not communicate with the vehicle:
- check that the program card is correctly installed.
- check the connections to the vehicle.
- check the ignition switch position.

5. If the diagnostic tool still does not communicate with the vehicle, refer to the diagnostic tool operating manual.
6. Carry out the data link diagnostics test. If the diagnostic tool responds with:
- CAN circuit fault; all electronic control units no response/not equipped, refer to Information Bus (Module Communications Network).
- No response/not equipped for the audio control module, refer to Radio, Stereo, and Compact Disc.
- System passed, retrieve and record the continuous diagnostic trouble codes (DTCs), erase the continuous DTCs and carry out self-test diagnostics for the audio control module.

7. If the DTCs retrieved are related to the concern, go to the Audio Control Module Diagnostic Trouble Code (DTC) Index to continue diagnostics. Diagnostic Trouble Code Tests and Associated Procedures
8. If no DTCs related to the concern are retrieved, carry out the navigation system self diagnostics and GO to Symptom Chart. Symptom Related Diagnostic Procedures

Self Diagnostics
The navigation system provides internal self diagnostics to assist with diagnosing vehicle concerns.

Press and hold the 3 and 6 memory preset buttons for 3 seconds.







Press the End Test button on the screen to exit the speaker walk test.







The following diagnostics are available using the on-screen buttons as follows:
- ON DEMAND SELF TEST provides internal self-test diagnostics and displays all the DTCs resulting from the self-test.
- VIEW DTCs provides a list of all the diagnostic trouble codes (DTCs) currently stored in memory.
- CONFIGURATION STATUS displays the current unit configuration.
- SYSTEM INFO provides the navigation module part number and software information.
- GPS INFO provides satellite information and vehicle current information.
- SPEAKER WALK TEST performs a speaker walk-around test.
- MULTI-DISC TEST performs a test of the compact disc (CD) player mechanism.
- HARDKEY TEST checks any of the buttons operation.
- RADIO SIGNAL STRENGTH performs a test of the antenna signal.