Pinpoint Test V: The Voice Guidance Is Inoperative/Does Not Operate Correctly

Information and Entertainment System

Pinpoint Test V: The Voice Guidance Is Inoperative/Does Not Operate Correctly

Normal Operation

The voice-assisted route guidance is broadcast through the instrument panel speaker. The volume can be adjusted using the settings on the Audio Control Module (ACM). The ACM sends the voice guidance audio signals to the audio Digital Signal Processing (DSP) module through a dedicated pair of circuits.

The voice guidance volume can be changed by the customer.

- DTC B1A07:01 (Speaker #7: General Electrical Failure) - sets when a fault is detected in the navigation voice circuits.

This pinpoint test is intended to diagnose the following:

- Incorrect voice guidance setting
- Wiring, terminals or connectors
- Audio DSP module
- ACM

PINPOINT TEST V: THE VOICE GUIDANCE IS INOPERATIVE/DOES NOT OPERATE CORRECTLY

NOTICE: Use the correct probe adapter(s) when making measurements. Failure to use the correct probe adapter(s) may damage the connector.

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V1 CHECK THE AUDIBLE PROMPT SETTING

- Operate the audio system in SYNC mode.
- Verify the audible prompts are enabled. Refer to "SYNC Voice Recognition Feature" in the Owner's Literature.
- Press the VOICE switch on the steering wheel controls and observe the SYNC audible prompt.
- Do the SYNC system produce an audible prompt correctly?

Yes
GO to V2.

No
GO to Pinpoint Test AB. Pinpoint Tests AB: The SYNC System Audible Prompts Are Inoperative/Do Not Operate Correctly

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V2 CHECK THE VOICE GUIDANCE SETTING

- Adjust the voice volume to approximately 50%. Refer to the Owner's Literature.
- Set a destination and start the route using the navigation controls. Refer to the Owner's Literature.
- Observe the voice guidance.
- Does the voice guidance operate correctly?

Yes
The concern was caused by an incorrect customer setting. INSTRUCT the customer in the correct use of the voice guidance feature.

No
GO to V3.

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V3 CHECK THE INSTRUMENT PANEL SPEAKER

- Carry out the speaker walk test. Refer to Audio Control Module (ACM) Self-Diagnostic Mode Audio Control Module (ACM) Self-Diagnostic Mode.
- Does the instrument panel speaker operate correctly?

Yes
GO to V4.

No
GO to Pinpoint Test C. Pinpoint Test C: Poor Quality/Distorted/No Sound From One Or More Speakers (Not All Speakers) - THX(R) Sound

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V4 CHECK FOR CORRECT ACM OPERATION

- Connect: Audio DSP module C4326a.
- 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) Audio Control Module (ACM). 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.

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