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Pinpoint Test C: B1616:04

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  1. DTC Fault Trigger Conditions 
    DTC Description Fault Trigger Condition
    BCM B1616:04 Electrical System High Key Off Load: System Internal Failure BCM sets this DTC when the BMS senses a high load draw when the ignition is off.

    Possible Causes 

    • Aftermarket electrical component
    • Vehicle module(s)
    • Wiring, terminals or connectors

  2. C1 CHECK FOR AFTERMARKET ACCESSORIES

    • Check for any aftermarket electrical components that are attached to the vehicle's electrical system.

    Are any aftermarket electrical components connected to the vehicle? 

    Yes  Remove the aftermarket electrical components, carry out the battery drain test to verify the high load draw has been removed from the vehicle.
    No  GO to  C2

  3. C2 CHECK THE VEHICLES FOR A HIGH LOAD DRAW

    Was a high load draw detected? 

    Yes  Fix or Repair the excessive high load draw.
    No  GO to  C3

  4. C3 CHECK FOR CORRECT OPERATION SHORT SOAK

    • Using a diagnostic scan tool, Clear the BCM DTCs.

    • Ignition OFF.

    • Wait 1.5 hours.

    • Ignition ON.

    • Wait 10 seconds.

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

    Is DTC B1616:04 still present? 

    Yes  GO to  C4
    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. C4 CHECK FOR CORRECT OPERATION LONG SOAK

    • Using a diagnostic scan tool, clear the BCM DTCs.

    • Ignition OFF.

    • Wait 12 hours.

    • Ignition ON.

    • Wait 10 seconds.

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

    Is DTC B1616:04 still present? 

    Yes  GO to  C5
    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.

  6. C5 CHECK FOR CORRECT BCM (BODY CONTROL MODULE) OPERATION

    • Ignition OFF.

    • Disconnect and inspect all the BCM connectors.

    • Repair:

      • corrosion (install new connectors or terminals - clean module pins)
      • damaged or bent pins - install new terminals pins
      • pushed-out pins - install new pins as necessary

    • Reconnect the BCM 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 service articles: TSB, GSB, SSM or FSA. If a service article exists for this concern, DISCONTINUE this test and FOLLOW the service article instructions. If no service articles address this concern, INSTALL a new BCM. REFER to: Body Control Module (BCM) .
    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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