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

Audio unit does not exit anti-theft mode 

NOTE: 

• Check the vehicle 12 volt battery condition first .
• Check for F-CAN and B-CAN DTCs and resolve them before troubleshooting.
• Check the connectors for poor connections or loose terminals.

• 1. Problem verification:

  - 1. Turn the vehicle to the ON mode.

  - 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: With display audio

  The failure is duplicated, go to step 3.

  NO: With normal audio

  The failure is duplicated, go to step 2.

• 2. Open wire check (B-CAN_H line, B-CAN_L line):

  - 1. Turn the vehicle to the OFF (LOCK) mode.

  - 2. Disconnect the following connectors.

  Audio unit connector B (20P)

  Gauge control module connector A (32P)

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

  Test condition

  Vehicle OFF (LOCK) mode

  	Audio unit connector B (20P): disconnected
  	Gauge control module connector A (32P): disconnected
  Test point 1	Audio unit connector B (20P) No. 13 - Refer to: Audio Unit Connector for Inputs and Outputs(With Display Audio) Audio Unit Connector for Inputs and Outputs(With Normal Audio)
  Test point 2	Gauge control module connector A (32P) No. 30

  Test point 1	Audio unit connector B (20P) No. 3 - Refer to: Audio Unit Connector for Inputs and Outputs(With Display Audio) Audio Unit Connector for Inputs and Outputs(With Normal Audio)
  Test point 2	Gauge control module connector A (32P) No. 31

  Is there continuity?

  YES 

  Replace the audio unit - Refer to: Audio Unit Removal and Installation(With Display Audio)Audio Unit Removal and Installation(With Normal Audio) .

  NO 

  Repair an open in the wire(s) between the audio unit and the gauge control module.

• 3. Open wire check (B-CAN_H line, B-CAN_L line):

  - 1. Turn the vehicle to the OFF (LOCK) mode.

  - 2. Disconnect the following connectors.

  Audio unit connector C (20P)

  Gauge control module connector A (32P)

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

  Test condition	Vehicle OFF (LOCK) mode
  	Audio unit connector C (20P): disconnected
  	Gauge control module connector A (32P): disconnected
  Test point 1	Audio unit connector C (20P) No. 13 - Refer to: Audio Unit Connector for Inputs and Outputs(With Display Audio) Audio Unit Connector for Inputs and Outputs(With Normal Audio)
  Test point 2	Gauge control module connector A (32P) No. 30

  Test point 1	Audio unit connector C (20P) No. 3 - Refer to: Audio Unit Connector for Inputs and Outputs(With Display Audio) Audio Unit Connector for Inputs and Outputs(With Normal Audio)
  Test point 2	Gauge control module connector A (32P) No. 31

  Is there continuity?

  YES 

  Replace the audio unit - Refer to: Audio Unit Removal and Installation(With Display Audio)Audio Unit Removal and Installation(With Normal Audio) .

  NO 

  Repair an open in the wire(s) between the audio unit and the gauge control module.