No | GO to G3 |
|---|
G3 CHECK THE ENABLE CIRCUIT FUNCTIONALITY BY CHECKING THE AUDIBLE PROMPT FUNCTIONALITY
Operate the audio system in AM/ FM mode. Operate the VOICE steering wheel switch and listen for the SYNC® audible prompt.
Does the SYNC® system produce an audible prompt correctly; indicating voice recognition mode has been entered?
Yes | GO to G4 |
|---|---|
No | GO to G5 |
G4 CHECK FOR AN AUDIO SIGNAL TO THE AUDIO DSP (AUDIO DIGITAL SIGNAL PROCESSING MODULE) MODULE
NOTICE: This pinpoint test step directs testing circuits using a back-probe method. Use the special back-probe tool POM6411. Do not force test leads or other probes into connectors. Adequate care must be exercised to avoid connector terminal damage, while ensuring that good electrical contact is made with the circuit or terminal. Failure to follow these instructions may cause damage to wiring, terminals, or connectors, and may cause subsequent electrical faults.
Ignition ON. Operate the audio system in AM/ FM mode. While back-probing audio DSP module C2385A, measure the AC voltage.
Click to display connectors
Positive Lead | Measurement / Action | Negative Lead |
|---|---|---|
C2385A-7 | C2385A-17 |
Is a fluctuating AC voltage present?
Yes | GO to G10 |
|---|---|
No | GO to G9 |
G5 CHECK THE AUDIO DSP (AUDIO DIGITAL SIGNAL PROCESSING MODULE) MODULE ENABLE CIRCUIT FOR CORRECT VOLTAGE
NOTICE: This pinpoint test step directs testing circuits using a back-probe method. Use the special back-probe tool POM6411. Do not force test leads or other probes into connectors. Adequate care must be exercised to avoid connector terminal damage, while ensuring that good electrical contact is made with the circuit or terminal. Failure to follow these instructions may cause damage to wiring, terminals, or connectors, and may cause subsequent electrical faults.
While back-probing audio DSP module C2385A, measure the AC voltage.
Click to display connectors
Positive Lead | Measurement / Action | Negative Lead |
|---|---|---|
C2385A-3 | Ground |
2016 Mustang workshop publication supplied to Mustang Atlas. Original technical text and illustrations; HTML formatting by Mustang Atlas. Source page numbering is retained for traceability. Follow the configuration, revision, warnings, and cross-references in the material. About this edition.