Pinpoint Test K: DTC B2924

Information and Entertainment System

Pinpoint Tests

Pinpoint Test K: DTC B2924

Normal Operation

This DTC sets as a continuous DTC when an Audio Control Module (ACM) button is detected as active for greater than 120 seconds, or sets on-demand if a button is detected as active for greater than 3 seconds during the self-test.

This pinpoint test is intended to diagnose the following:
- ACM



PINPOINT TEST K: DTC B2924

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K1 CHECK FOR STUCK ACM BUTTONS


- Operate the audio system in radio tuner (AM/FM) mode.
- Enter the self-diagnostic menu and select the HARDKEY TEST function.
- NOTE: If any button is pushed, the corresponding button on the screen appears highlighted.
- Observe the buttons on the screen.




- Does the hardkey test indicate a stuck button?

Yes
GO to K2.

No
The system is operating correctly at this time.

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K2 CHECK FOR CORRECT ACM OPERATION


- Disconnect all the ACM connectors.
- Check for:
- corrosion
- damaged pins
- pushed-out pins
- Connect all the ACM connectors and make sure they seat correctly.
- Operate the system and verify the concern is still present.
- Is the concern still present?

Yes
INSTALL a new ACM. REFER to Audio Control Module (ACM) Removal and Replacement. TEST the system for normal operation.

No
The system is operating correctly at this time. The concern may have been caused by a loose or corroded connector. CLEAR the DTCs. REPEAT the self-test.

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