Audio Unit Does Not Exit Anti-Theft Mode

Audio System Symptom Troubleshooting - Audio unit does not exit anti-theft mode

Audio unit does not exit anti-theft mode

NOTE:
* Check the vehicle battery condition first Battery Test.
* Check for F-CAN DTCs and resolve them before troubleshooting.
* Check the connectors for poor connections or loose terminals.

1. Problem verification:

Problem verification
-1. Turn the ignition switch to ON (II).

-2. Press and hold the POWER button more than 2 seconds to release the anti-theft mode.

Is the anti-theft mode released?
-YES- Intermittent failure, the system is OK at this time.
-NO- The failure is duplicated, go to step 2.

2. Gauge control module DTC check:

Gauge control module DTC check
-1. Turn the ignition switch to LOCK (0).

-2. Connect the HDS to the DLC.

-3. Turn the ignition switch to ON (II).

-4. Clear the DTCs with the HDS.

-5. Turn the ignition switch to LOCK (0) and then back to ON (II).

-6. Check for DTCs with the HDS.

Are any DTCs indicated?
-YES- Go to indicated DTC's troubleshooting.
-NO- Go to step 3.

3. Open wire check (B_CAN-H line, B_CAN-L line):

Open wire check (B_CAN-H line, B_CAN-L line)
-1. Turn the ignition switch to LOCK (0).

-2. Disconnect the following connectors.





-3. Check for continuity between test points 1 and 2.














Is there continuity?
-YES- Replace the audio unit Audio Unit Removal and Installation.
-NO- Repair an open in the wire(s) between the audio unit and the gauge control module (tach).