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Pinpoint Test AD: DTC U3003:16




Information and Entertainment System

Pinpoint Test AD: DTC U3003:16

Normal Operation

- DTC U3003:16 (Battery Voltage: Circuit Voltage Below Threshold)- set by the Audio Control Module (ACM), the Accessory Protocol Interface Module (APIM), the audio Digital Signal Processing (DSP) module (if equipped), the Global Positioning System Module (GPSM) (if equipped), the Front Controls Interface Module (FCIM), and the Front Control/Display Interface Module (FCDIM) (if equipped) when the supply voltage falls below 10 volts for at least 10 seconds during normal operation, or for more than 250 milliseconds during the self-test.

This pinpoint test is intended to diagnose the following:

- Wiring, terminals or connectors

- High circuit resistance

- ACM (Audio Control Module)

- APIM (Accessory Protocol Interface Module)

- Audio DSP (Digital Signal Processing) module

- GPSM (Global Positioning System Module)

- FCIM (Front Controls Interface Module)

- FCDIM (Front Control/Display Interface Module)

PINPOINT TEST AD : DTC U3003:16

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

NOTE: Failure to disconnect the battery when instructed results in false resistance readings.

AD1 RECHECK FOR DTC U3003:16

- Ignition ON.

- Clear the DTCs for the module in question.

- Wait at least 15 seconds.

- Repeat the self-test.

Is DTC U3003:16 still present?

Yes
GO to AD2.

No
The system is operating correctly at this time. The DTC may have been set due to a previous low battery voltage condition.

AD2 CHECK FOR CHARGING SYSTEM DTCs IN THE PCM

- Retrieve the continuous DTCs from all modules.

Is DTC P0620, P0622, P0625, P0626, or P065B set in the PCM?

Yes
REFER to Charging System.

No
GO to AD3.

AD3 CHECK THE BATTERY CONDITION AND STATE OF CHARGE

- Check the battery condition and verify that the battery is fully charged.

Is the battery OK and fully charged?

Yes
GO to AD4.

No
REFER to Battery.

AD4 CHECK THE MODULE VOLTAGE SUPPLY

- Ignition OFF.

- Measure and record the voltage at the battery.

- Disconnect the module setting DTC U3003:16.
- ACM (Audio Control Module)

- APIM (Accessory Protocol Interface Module)

- Audio DSP (Digital Signal Processing) module

- GPSM (Global Positioning System Module)

- FCIM (Front Controls Interface Module)

- FCDIM (Front Control/Display Interface Module)

- Ignition ON.

- Measure the voltage between the module setting DTC U3003:16, harness side and ground as follows:

Suspect Module Positive Meter Lead Negative Meter Lead Circuit ACM (Audio Control Module) C240A-1 Ground SBP29 (GY/RD) APIM (Accessory Protocol Interface Module) (4.2-inch (107 mm) screen SYNC(R)) C3342-1 Ground SBP29 (GY/RD) APIM (Accessory Protocol Interface Module) (8-inch (203 mm) touchscreen SYNC(R)) C2383-1 Ground SBP29 (GY/RD) Audio DSP (Digital Signal Processing) module (SONY(R)) C4326C-7 Ground SBP19 (BU/RD) C4326C-8 Ground SBP19 (BU/RD) Audio DSP (Digital Signal Processing) module (THX(R)) C4348C-11 Ground SBP19 (BU/RD) C4348C-12 Ground SBP19 (BU/RD) GPSM (Global Positioning System Module) C2398-1 Ground SBP26 (YE/RD) FCIM (Front Controls Interface Module) C2402-1 Ground SBP29 (GY/RD) FCDIM (Front Control/Display Interface Module) C2123-1 Ground SBP29 (GY/RD)

Is the voltage at the suspect module within 0.2 volt of the recorded battery voltage?

Yes
GO to AD5.

No
REPAIR the circuit for high resistance. CLEAR the DTCs. REPEAT the self-test.

AD5 CHECK THE SUSPECT MODULE GROUND CIRCUIT FOR CONTINUITY

- Measure the voltage between the suspect module, harness side as follows:

Suspect Module Positive Meter Lead Negative Meter Lead ACM (Audio Control Module) C240A-1 SBP29 (GY/RD) C240A-13 GD114 (BK/BU) APIM (Accessory Protocol Interface Module) (4.2-inch (107 mm) screen SYNC(R)) C3342-1 SBP29 (GY/RD) C3342-37 GD114 (BK/BU) C3342-38 GD114 (BK/BU) APIM (Accessory Protocol Interface Module) (8-inch (203 mm) touchscreen SYNC(R)) C2383-1 SBP29 (GY/RD) C2383-37 GD115 (BK/GY) Audio DSP (Digital Signal Processing) module (SONY(R)) C4326C-7 SBP19 (BU/RD) C4326C-13 GD148 (BK/YE) C4326C-14 GD148 (BK/YE) Audio DSP (Digital Signal Processing) module (THX(R)) C4348C-11 SBP19 (BU/RD) C4348C-21 GD148 (BK/YE) C4348C-22 GD148 (BK/YE) GPSM (Global Positioning System Module) C2398-1 SBP26 (YE/RD) C2398-6 GD114 (BK/BU) FCIM (Front Controls Interface Module) C2402-1 SBP29 (GY/RD) C2402-6 GD115 (BK/GY) FCDIM (Front Control/Display Interface Module) C2123-1 SBP29 (GY/RD) C2123-9 GD115 (BK/GY)

Is the voltage greater than 10 volts?

Yes
For ACM (Audio Control Module) DTC U3003:16, GO to AD6.

For APIM (Accessory Protocol Interface Module) DTC U3003:16, GO to AD7.

For audio DSP (Digital Signal Processing) module (SONY(R)) or (THX(R)) DTC U3003:16, GO to AD8.

For GPSM (Global Positioning System Module) DTC U3003:16, GO to AD9.

For FCIM (Front Controls Interface Module) DTC U3003:16, GO to AD10.

For FCDIM (Front Control/Display Interface Module) DTC U3003:16, GO to AD11.

No
REPAIR the circuit for high resistance. CLEAR the DTCs. REPEAT the self-test.

AD6 CHECK FOR CORRECT ACM (Audio Control Module) OPERATION

- Ignition OFF.

- Disconnect all the ACM (Audio Control Module) connectors.

- Check for:
- corrosion

- damaged pins

- pushed-out pins


- Connect all the ACM (Audio Control 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 ACM (Audio Control Module). REFER to 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. CLEAR the DTCs.

AD7 CHECK FOR CORRECT APIM (Accessory Protocol Interface Module) OPERATION

- Ignition OFF.

- Disconnect all the APIM (Accessory Protocol Interface Module) connectors.

- Check for:
- corrosion

- damaged pins

- pushed-out pins


- Connect all the APIM (Accessory Protocol Interface 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 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. CLEAR the DTCs.

AD8 CHECK FOR CORRECT AUDIO DSP (Digital Signal Processing) MODULE OPERATION

- Ignition OFF.

- Disconnect all the audio DSP (Digital Signal Processing) module connectors.

- Check for:
- corrosion

- damaged pins

- pushed-out pins


- Connect all the audio DSP (Digital Signal Processing) 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 audio DSP (Digital Signal Processing) module. REFER to Audio Digital Signal Processing (DSP) Module . 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.

AD9 CHECK FOR CORRECT GPSM (Global Positioning System Module) OPERATION

- Ignition OFF.

- Disconnect the GPSM (Global Positioning System Module) connector.

- Check for:
- corrosion

- damaged pins

- pushed-out pins


- Connect the GPSM (Global Positioning System Module) connector and make sure it seats correctly.

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

Is the concern still present?

Yes
INSTALL a new GPSM (Global Positioning System Module). REFER to Global Positioning System Module (GPSM) . 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.

AD10 CHECK FOR CORRECT FCIM (Front Controls Interface Module) OPERATION

- Ignition OFF.

- Disconnect the FCIM (Front Controls Interface Module) connector.

- Check for:
- corrosion

- damaged pins

- pushed-out pins


- Connect the FCIM (Front Controls Interface Module) module connector and make sure it seats correctly.

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

Is the concern still present?

Yes
INSTALL a new FCIM (Front Controls Interface Module). REFER to Front Controls Interface Module (FCIM) . 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.

AD11 CHECK FOR CORRECT FCDIM (Front Control/Display Interface Module) OPERATION

- Ignition OFF.

- Disconnect the FCDIM (Front Control/Display Interface Module) connector.

- Check for:
- corrosion

- damaged pins

- pushed-out pins


- Connect the FCDIM (Front Control/Display Interface Module) connector and make sure it seats correctly.

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

Is the concern still present?

Yes
INSTALL a new FCDIM (Front Control/Display Interface Module). REFER to Front Controls/Display Interface Module (FCDIM) . 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.

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