2012 Hyundai AzeraFACTORY OEM SERVICE PROCEDURE

Trunk Control

This IPM Trunk describes the following functions:

  • Trunk Release Control Function
  • Trunk Status Indicator Function
  • Trunk Lamp Function
    Fig 1: Trunk Control System Function Diagram
    G08814260Courtesy of HYUNDAI MOTOR AMERICA
Function Characteristics Name
Signal Label Spec. Designation
Input Logic L_ExternalTrunkSW External Trunk Open Switch
L_RLDRUnlockSW Rear Left Door Unlock Switch
L_RRDRUnlockSW Rear Right Door Unlock Switch
L_TrunkStatus Trunk Switch Status
CAN_B Communication C_ASTUnlockState Assist Door Unlock Switch
C_DRVUnlockState Driver Door Unlock Switch
C_PassiveTrunk_TG Trunk open command by SMK
C_TrunkOpenSW Trunk Open Switch from DDM
CAN_C Communication VS Vehicle Speed Signal
Internal b_BAState Burglar Alarm State is in ARM type state
b_RKETrunkCmd RKE Trunk Command
Output Logic O_TrunkLamp Trunk Lamp Output
O_TrunkRelease Trunk Release Output
CAN_C Communication CF_Gway_TrkOpnInd Trunk opening Status
Factory Service Tools

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When to See a Mechanic

Stop DIY work and contact a certified mechanic immediately if any of the following apply:

  • β€’ You smell fuel, burning insulation, or see smoke.
  • β€’ Brakes feel soft, pull hard to one side, or make grinding noises.
  • β€’ The engine overheats, stalls repeatedly, or misfires under load.
  • β€’ You are missing required tools, torque specs, or safe lifting equipment.
  • β€’ You are not confident in the next step or safety outcome.

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