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Pinpoint Test AF: DTC U3003:17 (Audio DSP Module)

NOTE: DTC U3003:17 may be stored in the module memory due to past battery charging or vehicle jump starting events.
  1. AF1 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 AF2  .
  2. AF2 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 AF3  .
  3. AF3 RECHECK FOR DTC U3003:17 
    • Ignition OFF.
    • Ignition ON.
    • Clear the audio DSP  module DTCs.
    • Repeat the audio DSP  module self-test.
    • Is DTC U3003:17 present? 
    • Yes:  INSTALL a new audio DSP  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.
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