Pinpoint Test E: Voice Recognition Is Inoperative/Does Not Operate Correctly (Late Build SYNC(R) or Early Build Bluetooth Hands
Information and Entertainment System
Pinpoint Test E: Voice Recognition Is Inoperative/Does Not Operate Correctly (Late Build SYNC(R) or Early Build Bluetooth Hands-Free System)
Refer to Wiring Diagrams Set 130, Audio System for schematic and connector information. Electrical Diagrams
Normal Operation
When the VOICE switch is pressed, it changes a reference voltage signal, and the audio system enters voice recognition mode. The VOICE switch is hardwired to the Audio Front Control Module (ACM). For late build vehicles, the ACM (Audio Front Control Module) then broadcasts a message over the independent network circuits to the APIM (Accessory Protocol Interface Module). For early build vehicles, the ACM (Audio Front Control Module) then broadcasts a message to the SRM (Speech Recognition Module) over the MS-CAN (Medium Speed Controller Area Network).
The microphone receives the voice command and sends an AC voltage signal to the APIM (Accessory Protocol Interface Module) (late build) or SRM (Speech Recognition Module) (early build). The microphone is also used to detect outgoing audio during a phone call.
This pinpoint test is intended to diagnose the following:
- Wiring, terminals or connectors
- Steering wheel controls
- Microphone
- APIM (Accessory Protocol Interface Module) (late build)
- SRM (Speech Recognition Module) (early build)
PINPOINT TEST E : VOICE RECOGNITION IS INOPERATIVE/DOES NOT OPERATE CORRECTLY (LATE BUILD SYNC(R) OR EARLY BUILD BLUETOOTH HANDS-FREE SYSTEM)
NOTICE: Use the correct probe adapter(s) when making measurements. Failure to use the correct probe adapter(s) may damage the connector.
E1 CHECK THE OPERATION OF THE STEERING WHEEL CONTROLS
- Operate the audio system in radio tuner (AM/FM) mode.
- Press the VOICE button on the steering wheel controls.
Does the audio system enter voice recognition mode?
Yes
If equipped with SYNC(R), GO to E2.
If equipped with the Bluetooth Hands-Free System, GO to E7.
No
For late build vehicles, GO to Pinpoint Test D to diagnose the inoperative steering wheel controls. Pinpoint Test D: The Steering Wheel Controls Are Inoperative/Do Not Operate Correctly (Late Build)
For early build vehicles, GO to Pinpoint Test U to diagnose the inoperative steering wheel controls. Pinpoint Test U: The Steering Wheel Controls Are Inoperative/Do Not Operate Correctly (Early Build)
E2 CHECK THE OPERATION OF THE VOICE RECOGNITION
- Press the VOICE button on the steering wheel controls.
- Wait for the SYNC(R) system to acknowledge the VOICE button being pressed.
- While still in voice recognition mode, speak the command "PHONE", and observe the audio system.
Does the SYNC(R) system acknowledge the command "PHONE"?
Yes
The system is operating correctly at this time. INSTRUCT the customer of the correct operation of the Bluetooth Hands-Free System.
No
GO to E3.
E3 RESET THE APIM (Accessory Protocol Interface Module) AND RECHECK SYNC(R) SYSTEM OPERATION
NOTE: Carrying out a Master Reset returns all preference settings to the factory defaults, erases all the phone book and call histories, and deletes any devices paired with the SYNC(R) system.
- Carry out an APIM (Accessory Protocol Interface Module) power reset by disconnecting the battery for 5 minutes, then reconnecting it.
- Connect: Multi-Media Interface Tester (105-00120).
- Using the Multi-Media Interface Tester (105-00120), test the audio output for the audio input jack, USB (Universal Serial Bus) port, and Bluetooth connection using the VOICE switch on the steering wheel controls to enter each mode.
Do all of the SYNC(R) inputs function correctly?
Yes
The SYNC(R) system is operating correctly at this time. CARRY OUT a SYNC(R) system Master Reset. REFER to the Owner's Literature.
REVIEW the SYNC(R) system operation with the customer. If the customer device still does not operate correctly, the fault is with the customer device.
No
GO to E4.
E4 CHECK THE MICROPHONE CIRCUITS FOR A SHORT TO VOLTAGE (SYNC(R))
- Ignition OFF.
- Disconnect: APIM (Accessory Protocol Interface Module) C2383.
- Disconnect: Microphone C9045.
- Ignition ON.
- Measure the voltage between the APIM (Accessory Protocol Interface Module), harness side and ground.
Positive Meter Lead Negative Meter Lead Circuit C2383-5 Ground 8-MC8 (WH/BU) C2383-18 Ground 89-MC8 (WH/RD) C2307-6 Ground 3-MC8 (BK)
Is any voltage present?
Yes
REPAIR the circuit in question. TEST the system for normal operation.
No
GO to E5.
E5 CHECK THE MICROPHONE CIRCUITS FOR AN OPEN OR SHORT TO GROUND (SYNC(R))
- Ignition OFF.
- Measure the resistance between the APIM (Accessory Protocol Interface Module), harness side and the microphone, harness side; and between the APIM (Accessory Protocol Interface Module), harness side and ground.
Positive Meter Lead Negative Meter Lead Circuit C2383-5 C9045-2, then ground 8-MC8 (WH/BU) C2383-18 C9045-1, then ground 89-MC8 (WH/RD) C2307-6 C9045-3 3-MC8 (BK)
Are the resistances less than 3 ohms between the APIM (Accessory Protocol Interface Module) and the microphone, and greater than 10,000 ohms between the APIM (Accessory Protocol Interface Module) and ground?
Yes
GO to E6.
No
REPAIR the circuit in question. TEST the system for normal operation.
E6 CHECK THE MICROPHONE CIRCUITS FOR A SHORT TOGETHER (SYNC(R))
- Measure the resistance between the pins of the APIM (Accessory Protocol Interface Module), harness side.
Positive Meter Lead Negative Meter Lead C2383-5 8-MC8 (WH/BU) C2383-18 89-MC8 (WH/RD) C2383-5 8-MC8 (WH/BU) C2383-6 3-MC8 (BK) C2383-18 89-MC8 (WH/RD) C2383-6 3-MC8 (BK)
Are the resistances greater than 10,000 ohms?
Yes
GO to E11.
No
REPAIR the circuit in question. TEST the system for normal operation.
E7 CHECK THE OPERATION OF THE SRM (Speech Recognition Module) AUDIO OUTPUT (BLUETOOTH HANDS-FREE SYSTEM)
- Connect: Multi-Media Interface Tester (105-00120).
- Operate the audio system in AUX mode.
- Using the Multi-Media Interface Tester (105-00120), attempt to play an audio file using the audio input jack.
Does the audio file play correctly?
Yes
GO to E8.
No
GO to Pinpoint Test C to diagnose the SRM (Speech Recognition Module) audio output. Pinpoint Test C: The Audio Input Jack Is Inoperative/Does Not Operate Correctly
E8 CHECK THE MICROPHONE CIRCUITS FOR A SHORT TO VOLTAGE (BLUETOOTH HANDS-FREE SYSTEM)
- Ignition OFF.
- Disconnect: SRM (Speech Recognition Module) C2307.
- Disconnect: Microphone C9221.
- Ignition ON.
- Measure the voltage between the SRM (Speech Recognition Module) C2307-3, circuit 8-MC8 (WH/RD), harness side and ground; and between the SRM (Speech Recognition Module) C2307-4, circuit 3-MC8 (BK), harness side and ground.
Is any voltage present?
Yes
REPAIR the circuit in question. TEST the system for normal operation.
No
GO to E9.
E9 CHECK THE MICROPHONE CIRCUITS FOR AN OPEN OR SHORT TO GROUND (BLUETOOTH HANDS-FREE SYSTEM)
- Ignition OFF.
- Measure the resistance between the SRM (Speech Recognition Module), harness side, and the microphone, harness side, as follows:
Positive Meter Lead Negative Meter Lead Circuit C2307-3 C9221-A, then ground 8-MC8 (WH/RD) C2307-4 C9221-B, then ground 3-MC8 (BK)
Are the resistances less than 3 ohms between the SRM (Speech Recognition Module) and the microphone, and greater than 10,000 ohms between the SRM (Speech Recognition Module) and ground?
Yes
GO to E10.
No
REPAIR the circuit in question. TEST the system for normal operation.
E10 CHECK THE MICROPHONE CIRCUITS FOR A SHORT TOGETHER (BLUETOOTH HANDS-FREE SYSTEM)
- Measure the resistance between the SRM (Speech Recognition Module), harness side.
Positive Meter Lead Negative Meter Lead C2307-3 8-MC8 (WH/RD) C2307-4 3-MC8 (BK)
Is the resistance greater than 10,000 ohms?
Yes
GO to E11.
No
REPAIR the circuit in question. TEST the system for normal operation.
E11 ISOLATE THE MICROPHONE
- Connect: All Disconnected Connectors.
- Install a new microphone. Refer to Microphone- SYNC(R) or Microphone- Speech Recognition Module (SRM) .
- Operate the audio system in radio tuner (AM/FM) mode.
- Press the VOICE button on the steering wheel controls, and attempt several voice commands.
Does the voice recognition operate correctly?
Yes
The concern was caused by an inoperative microphone. The system is now operating correctly.
No
If equipped with the Bluetooth Hands-Free System (early build), GO to E12.
If equipped with SYNC(R) (late build), GO to E13.
E12 CHECK FOR CORRECT SRM (Speech Recognition Module) OPERATION
- Disconnect all the SRM (Speech Recognition Module) connectors.
- Check for:
- corrosion
- damaged pins
- pushed-out pins
- Connect all the SRM (Speech Recognition Module) connectors and make sure they seat correctly.
- Operate the system and determine if the concern is still present.
Is the concern still present?
Yes
INSTALL a new SRM (Speech Recognition Module). REFER to Speech Recognition Module (SRM) . 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 any DTCs present.
E13 CHECK FOR CORRECT APIM (Accessory Protocol Interface Module) OPERATION
- Disconnect the APIM (Accessory Protocol Interface Module) connector.
- Check for:
- corrosion
- damaged pins
- pushed-out pins
- Connect the APIM (Accessory Protocol Interface Module) connector and make sure it seats correctly.
- Wait 2 minutes for the APIM (Accessory Protocol Interface Module) to re-initialize.
- Operate the system and verify the concern is still present.
Is the concern still present?
Yes
INSTALL a new APIM (Accessory Protocol Interface Module). REFER to Accessory Protocol Interface Module (APIM) . 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.