Pinpoint Test AP: DTC U3003:17 (Audio Digital Signal Processing (DSP) Module)

Information and Entertainment System

Pinpoint Test AP: DTC U3003:17 (Audio Digital Signal Processing (DSP) Module)

Normal Operation

- DTC U3003:17 (Battery Voltage: Circuit Voltage Above Threshold)- set by the audio Digital Signal Processing (DSP) module when the supply voltage is greater than 15.8 volts for more than 250 milliseconds during normal operation or the self-test.

This pinpoint test is intended to diagnose the following:

- Charging system concern

- Audio DSP (Digital Signal Processing) module

PINPOINT TEST AP : DTC U3003:17 (AUDIO DSP (Digital Signal Processing) MODULE)

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

AP1 CHECK FOR HIGH VOLTAGE DTCs SET IN OTHER MODULES

- Ignition ON.

- Retrieve all continuous DTCs 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.

No
GO to AP2.

AP2 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.

No
GO to AP3.

AP3 RECHECK FOR DTC U3003:17

- Ignition OFF.

- Ignition ON.

- Clear the audio DSP (Digital Signal Processing) module DTCs.

- Repeat the audio DSP (Digital Signal Processing) module self-test.

Is DTC U3003:17 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 DTC may have been set previously during battery charging or while jump starting the vehicle.