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Home >> Mercury >> 2010 >> Milan Base, Standard >> Repair and Diagnosis >> External Pages >> Different car >> Section 1245 (Information System And Entertainment System) >> Diagnosis And Testing >> Information and Entertainment System >> Pinpoint Tests >> Pinpoint Test AS: DTC U0184 Or DTC U0184:00 >> Pinpoint Test As: DTC U0184 Or DTC U0184:00

Pinpoint Test As: DTC U0184 Or DTC U0184:00

WARNING: This page is about a different car, the 2010 Mercury Mariner and 2010 Ford Escape. However, it is still accessible from the selected car via links, so may be relevant.
  1. AS1 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 U0184 or DTC U0184:00 set in any audio system module? 
    • Yes:  GO to AS2  .
    • No:  The system is operating correctly at this time. The DTC may have been set due to an intermittent fault in the network wiring.
  2. AS2 CHECK FOR BATTERY VOLTAGE OUT-OF-RANGE DTCs 
    • Carry out the self-test for the following modules:
      • ACM 
      • APIM  (if equipped)
      • FCIM 
      • FDIM 
      • GPSM 
    • Are any low or high voltage DTCs recorded in any module? 
    • Yes:  REFER to DTC CHARTS .
    • No:  GO to AS3  .
  3. AS3 CHECK FOR DTC U0184 OR DTC U0184:00 SET IN MULTIPLE MODULES 
    • Review the recorded results from the self-test.
    • Is DTC U0184 or DTC U0184:00 set in more than one audio system module? 
    • Yes:  GO to AS4  .
    • No:  If there is an observable symptom, REFER to the appropriate SYMPTOM CHART .

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

  4. AS4 CHECK FOR CORRECT ACM OPERATION 
    • Disconnect all the ACM  connectors.
    • Check for:
      • corrosion
      • damaged pins
      • pushed-out pins
    • Connect all the ACM  connectors and make sure they seat correctly.
    • Is the concern still present? 
    • Yes:  INSTALL a new ACM  . REFER to AUDIO CONTROL MODULE (ACM) . 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. REPEAT the self-test for the module(s) that set DTC U0184 or DTC U0184:00.
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