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Pinpoint Test P: The Airbag Warning Indicator Is Never Or Always On

  1. Normal Operation and Fault Conditions 

    See Airbag Warning Indicator. REFER to: Instrument Panel Cluster (IPC) - System Operation and Component Description .

    If the airbag indicator lamp request message is missing for less than 5 seconds, the IPC defaults the airbag warning indicator to its last indication state (on or off), based upon the last message received.

    If the airbag indicator lamp request message is missing for 5 seconds or longer, the IPC defaults the airbag warning indicator on.

    Possible Sources 

    • Communication concern
    • SRS concern
    • GWM concern
    • IPC

  2. P1 PERFORM THE IPC (INSTRUMENT PANEL CLUSTER) SELF-TEST

    • Ignition ON.

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

    Are any Diagnostic Trouble Codes (DTCs) recorded? 

    Yes  REFER to DTC Chart: Instrument Panel Cluster (IPC) .
    No  GO to  P2
  3. P2 PERFORM THE RCM (RESTRAINTS CONTROL MODULE) SELF-TEST

    • Ignition ON.

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

    Are any Diagnostic Trouble Codes (DTCs) recorded? 

    Yes  REFER to: Airbag Supplemental Restraint System (SRS)
    No  GO to  P3
  4. P3 CHECK THE GWM (GATEWAY MODULE A) DIAGNOSTIC TROUBLE CODES (DTCS)

    • Using a diagnostic scan tool, check the GWM Continuous Memory Diagnostic Trouble Codes (CMDTCs).

    Are any Diagnostic Trouble Codes (DTCs) recorded? 

    Yes  REFER to: Communications Network
    No  GO to  P4
  5. P4 PERFORM THE IPC (INSTRUMENT PANEL CLUSTER) INDICATOR LAMP CONTROL ACTIVE COMMAND USING A DIAGNOSTIC SCAN TOOL

    • Using a diagnostic scan tool, view the IPC Parameter Identifications (PIDs).

    • Select the IPC airbag warning indicator (AIRBAG_LMP) PID.

    • Command the airbag warning indicator on then off. Observe the airbag warning indicator.

    Does the airbag warning indicator turn on when commanded on and turn off when commanded off? 

    Yes  If the airbag warning indicator is never on, the system is operating correctly. If the airbag warning indicator is always on, INSTALL a new RCM. REFER to: Restraints Control Module (RCM)
    No  INSTALL a new IPC. Refer to Instrument Panel Cluster (IPC) .