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Home >> Audi >> 2015 >> A4 Prestige >> Repair and Diagnosis >> External Pages >> Different car >> Section 838 (Information And Entertainment Systems - Am/Fm/Cd) >> Diagnosis And Testing >> Information and Entertainment System >> Pinpoint Tests >> Pinpoint Test Ab : DTC U0151 >> Pinpoint Test Ab : DTC U0151

Pinpoint Test Ab : DTC U0151

WARNING: This page is about a different car, the 2017 Lincoln Navigator and 2017 Ford Expedition. However, it is still accessible from the selected car via links, so may be relevant.

  1. AB1 VERIFY THE CUSTOMER'S CONCERN

    • Ignition ON.
    • Verify if there is an observable symptom present.

    Is an observable symptom present? 

    Yes  GO to  AB2.
    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. AB2 CHECK THE COMMUNICATION NETWORK

    • Using a diagnostic scan tool, perform a network test.

    Does the RCM pass the network test? 

    Yes  GO to  AB3.
    No  REFER to Module Communications Network .

  3. AB3 RETRIEVE THE RCM DTCs

    • Using a diagnostic scan tool, perform the RCM self-test.

    Are any non-network DTCs recorded in the RCM ? 

    Yes  GO to  AB4.
    No  REFER to Supplemental Restraint System .

  4. AB4 RECHECK FOR DTC U0151

    • Using a diagnostic scan tool, clear all CMDTCs.
    • Ignition OFF.
    • Ignition ON.
    • Wait at least 10 seconds.
    • Using a diagnostic scan tool, retrieve the APIM CMDTCs.

    Is DTC U0151 still set in the APIM ? 

    Yes  GO to  AB5.
    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.

  5. AB5 RETRIEVE THE RECORDED DTCs FROM THE APIM SELF-TEST

    • Using a diagnostic scan tool, perform the APIM self-test.

    Are any non-network DTCs recorded? 

    Yes  REFER to the Accessory Protocol Interface Module (APIM) DTC Chart .
    No  GO to  AB6.

  6. AB6 CHECK FOR DTC U0151 SET IN MULTIPLE MODULES

    • Review the CMDTCs from all modules.

    Is DTC U0151 set in more than one module? 

    Yes  GO to  AB7.
    No  If there is an observable symptom, REFER to the Symptom Charts  to diagnose the observed symptom.If there is no observable symptom, the system is operating correctly at this time. The DTC may have been set due to high network traffic or an intermittent fault condition.

  7. AB7 CHECK FOR CORRECT RCM OPERATION

    • Ignition OFF.
    • Disconnect and inspect the RCM connectors and related in-line connectors.
    • Repair:
      • Corrosion (clean module pins or install new connectors or terminals)
      • Damaged or bent pins (install new terminals or pins)
      • Pushed-out pins (install new pins as necessary)
    • Reconnect the RCM connectors and related in-line connectors. Make sure they seat and latch correctly.
    • Operate the system and determine if the concern is still present.

    Is the concern still present? 

    Yes  CHECK OASIS for any applicable TSBs. If a TSB exists for this concern, DISCONTINUE this test and FOLLOW TSB instructions. If no TSBs address this concern, INSTALL a new RCM. REFER to Supplemental Restraint System .
    No  The system is operating correctly at this time. The concern may have been caused by module connections. ADDRESS the root cause of any connector or pin issues.
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