Pinpoint Test S : The Sync ® System Voice Or Tone Prompts, TTS Feature, Or Ringtones Are Inoperative Or Do Not Operate Correctly

S1 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 steering wheel switch and observe the SYNC ® audible prompt.

Does the SYNC ® system produce an audible prompt correctly?

Yes	The system is operating correctly at this time. The concern was caused by a customer setting. INSTRUCT the customer in the correct operation of the audible prompt feature.
No	GO to S2.

S2 CHECK FOR A VOLTAGE SIGNAL FROM THE APIM

Operate the audio system in SYNC ® mode.

While pressing the VOICE steering wheel switch repeatedly, measure the Alternating Current (AC) voltage by back-probing:

Positive Lead	Measurement / Action	Negative Lead
C3154A-5	Courtesy of FORD MOTOR COMPANY	C3154A-15

Is an AC voltage produced each time the VOICE switch is pressed?

Yes	GO to S7.
No	GO to S3.

S3 CHECK THE AUDIBLE PROMPT CIRCUITS FOR A SHORT TO VOLTAGE

Ignition OFF.

Disconnect: Audio DSP Module C3154A .

Disconnect: APIM C2383 .

Ignition ON.

Measure:

Positive Lead	Measurement / Action	Negative Lead
C2383-3	Courtesy of FORD MOTOR COMPANY	Ground
C2383-4	Courtesy of FORD MOTOR COMPANY	Ground

Is any voltage present?

Yes	REPAIR the circuit in question.
No	GO to S4.

S4 CHECK THE AUDIBLE PROMPT CIRCUITS FOR A SHORT TO GROUND

Ignition OFF.

Measure:

Positive Lead	Measurement / Action	Negative Lead
C2383-3	Courtesy of FORD MOTOR COMPANY	Ground
C2383-4	Courtesy of FORD MOTOR COMPANY	Ground

Are the resistances greater than 10, 000 ohms?

Yes	GO to S5.
No	REPAIR the circuit in question.

S5 CHECK THE AUDIBLE PROMPT CIRCUITS FOR AN OPEN

Measure:

Positive Lead	Measurement / Action	Negative Lead
C2383-3	Courtesy of FORD MOTOR COMPANY	C3154A-5
C2383-4	Courtesy of FORD MOTOR COMPANY	C3154A-15

Are the resistances less than 3 ohms?

Yes	GO to S6.
No	REPAIR the circuit in question.

S6 CHECK FOR CORRECT APIM OPERATION

Ignition OFF.

Disconnect and inspect the APIM connector.

Repair:
- Corrosion (clean module pins or install new connectors or terminals)
- Damaged or bent pins (install new terminals or pins)
- Pushed-out pins (install new pins as necessary)

Reconnect the APIM connector. Make sure it seats and latches correctly.

Wait 2 minutes for the APIM to re-initialize.

Operate the system and determine if the concern is still present.

Is the concern still present?

Yes	CHECK OASIS for any applicable TSBs. If a TSB exists for this concern, DISCONTINUE this test and FOLLOW TSB instructions. If no TSBs address this concern, Refer to APIM HARDWARE TESTING .
No	The system is operating correctly at this time. The concern may have been caused by module connections. ADDRESS the root cause of any connector or pin issues.

S7 CHECK FOR CORRECT AUDIO DSP MODULE OPERATION

Ignition OFF.

Disconnect and inspect all the audio DSP module connectors.

Repair:
- Corrosion (clean module pins or install new connectors or terminals)
- Damaged or bent pins (install new terminals or pins)
- Pushed-out pins (install new pins as necessary)

Reconnect the audio DSP module connectors. Make sure they seat and latch correctly.

Operate the system and determine if the concern is still present.

Is the concern still present?

Yes	CHECK OASIS for any applicable TSBs. If a TSB exists for this concern, DISCONTINUE this test and FOLLOW TSB instructions. If no TSBs address this concern, INSTALL a new audio DSP module. Refer to Audio Digital Signal Processing (DSP) Module .
No	The system is operating correctly at this time. The concern may have been caused by module connections. ADDRESS the root cause of any connector or pin issues.