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Pinpoint Test Ag: DTC U0197 Or DTC U0197:00

WARNING: This page is about a different car, the 2010 Lincoln MKX and 2010 Ford Edge. However, it is still accessible from the selected car via links, so may be relevant.
  1. AG1 CHECK FOR LOST COMMUNICATION DTCs 
    • Ignition ON.
    • Clear continuous DTCs from all modules.
    • Ignition OFF.
    • Ignition ON.
    • Wait at least 10 seconds.
    • Retrieve all continuous DTCs from all modules.
    • Is DTC U0197 or DTC U0197:00 set in any audio system module? 
    • Yes:  GO to AG2  .
    • No:  The system is operating correctly at this time. The DTC may have been set due to high network traffic or an intermittent fault condition.
  2. AG2 CHECK FOR BATTERY VOLTAGE OUT-OF-RANGE DTCs 
    • Carry out the self-test for the following modules:
      • ACM 
      • Audio DSP  module (if equipped)
      • SDARS  module (if equipped)
      • APIM 
    • Is DTC B1317, B1318, U3003:16, or U3003:17 recorded in any module? 
    • Yes:  REFER to DTC CHARTS .
    • No:  GO to AG3  .
  3. AG3 CHECK FOR DTC U0197 OR DTC U0197:00 SET IN MULTIPLE MODULES 
    • Review the recorded results from the self-test.
    • Is DTC U0197 or DTC U0197:00 set in more than one audio system module? 
    • Yes:  GO to AG4  .
    • No:  If there is an observable symptom, GO to SYMPTOM CHART - GENERAL AUDIO SYSTEM  to diagnose the observed symptom.

      If there is no observable symptom, CHECK the MS-CAN  wiring between the APIM  and the module in question for an intermittent fault.

  4. AG4 CHECK FOR CORRECT APIM OPERATION 
    • Disconnect the APIM  connector.
    • Check for:
      • corrosion
      • damaged pins
      • pushed-out pins
    • Connect the APIM  connector and make sure it seats correctly.
    • Wait 2 minutes for the APIM  to reinitalize.
    • Operate the system and verify the concern is still present.
    • Is the concern still present? 
    • Yes:  INSTALL a new APIM  . REFER to ACCESSORY PROTOCOL INTERFACE MODULE (APIM) . CLEAR all continuous DTCs. 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 all continuous DTCs.
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