Pinpoint Test AK: DTC U3003:17

Information and Entertainment System

Pinpoint Tests

Pinpoint Test AK: DTC U3003:17

Normal Operation
- DTC U3003:17 (Battery Voltage: Circuit Voltage Above 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 Display Interface Module (FDIM) (if equipped) .

The DTCs set in continuous memory when the sensed voltage is equal to or greater than 15.8V for more than 250ms.

This pinpoint test is intended to diagnose the following:

- Charging system concern
- ACM
- APIM
- Audio DSP module
- GPSM
- FCIM

PINPOINT TEST AK: DTC U3003:17

NOTE: DTC U3003:17 may be stored in the module memory due to past battery charging or vehicle jump starting events.

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AK1 CHECK FOR HIGH VOLTAGE DTCs SET IN OTHER MODULES

- Ignition ON.
- Retrieve all Continuous Memory Diagnostic Trouble Codes (CMDTCs) from all modules.
- Is DTC B1317, B1676, P0563 (PCM), or U3003:17 set in more than one module?

Yes
REFER to Charging System to diagnose an overcharging condition. Testing and Inspection

No
GO to AK2.

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AK2 CHECK THE BATTERY VOLTAGE

- Turn off all interior/exterior lights and accessories.
- Start and run the engine at approximately 2,000 rpm for 3 minutes while monitoring the battery voltage.
- Does the battery voltage rise to 15.5 volts or higher?

Yes
REFER to Charging System to diagnose an overcharging condition. Testing and Inspection

No
GO to AK3.

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AK3 RECHECK FOR DTC U3003:17

- Ignition OFF.
- Ignition ON.
- Clear the DTCs for the module in question.
- Repeat the self-test.
- Is DTC U3003:17 still present?

Yes
For ACM DTC U3003:17, GO to AK4. For APIM DTC U3003:17, GO to AK5. For audio DSP module DTC U3003:17, GO to AK6. For GPSM DTC U3003:17, GO to AK7. For FCIM DTC U3003:17, GO to AK8.

No
The system is operating correctly at this time. The DTC may have been set previously during battery charging or while jump starting the vehicle.

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AK4 CHECK FOR CORRECT ACM OPERATION

- Ignition OFF.
- 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 determine if 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. CLEAR the DTCs.

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AK5 CHECK FOR CORRECT APIM OPERATION

- Ignition OFF.
- Disconnect the APIM connector.
- Check for:
- corrosion
- damaged pins
- pushed-out pins
- Connect the APIM 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 APIM. REFER to Accessory Protocol Interface Module (APIM) 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.

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AK6 CHECK FOR CORRECT AUDIO DSP MODULE OPERATION

- Ignition OFF.
- Disconnect all the audio DSP module connectors.
- Check for:
- corrosion
- damaged pins
- pushed-out pins
- Connect all the audio DSP 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 module. REFER to Audio Digital Signal Processing (DSP) Module - Front Captain's Chair Audio Digital Signal Processing (DSP) Module - Front Captain's Chair or Audio Digital Signal Processing (DSP) Module - Split Bench Audio Digital Signal Processing (DSP) Module - Split Bench. 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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AK7 CHECK FOR CORRECT GPSM OPERATION

- Ignition OFF.
- Disconnect the GPSM connector.
- Check for:
- corrosion
- damaged pins
- pushed-out pins
- Connect the GPSM 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. REFER to Global Positioning System Module (GPSM) Service and Repair. 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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AK8 CHECK FOR CORRECT FCIM OPERATION

- Ignition OFF.
- Disconnect all the FCIM module connectors.
- Check for:
- corrosion
- damaged pins
- pushed-out pins
- Connect all the FCIM 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 FCIM. REFER to Front Controls Interface Module (FCIM) 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.

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