Hill Start Assist Warning Light, Hill Descent Control Indicator Light Does Not Come On: Trouble symptom

When the ignition switch is turned to ON (engine OFF), hill start assist warning light and hill descent control indicator light do not illuminate.

1. CHECK OTHER INDICATOR LIGHT. 

   Turn the ignition switch to ON. (Engine OFF)

   Do other indicator lights illuminate?

   • Yes  : Go to 2. 
   • No  : Check the combination meter. Ref. to INSTRUMENTATION/DRIVER INFO>Combination Meter System>OPERATION>SELF-DIAGNOSIS DISPLAY MODE .
2. READ DTC. 

   Read the DTC.

   Is DTC displayed? Ref. to BRAKE CONTROL (DIAGNOSTICS)>Read Diagnostic Trouble Code (DTC) .

   • Yes  : Perform the diagnosis according to DTC. Ref. to BRAKE CONTROL (DIAGNOSTICS)>List of Diagnostic Trouble Code (DTC) .
   • No  : Go to 3. 
3. CHECK LAN SYSTEM. 

   Perform the diagnosis for LAN system. Ref. to LAN SYSTEM (DIAGNOSTICS)>Basic Diagnostic Procedure .

   Is there any fault in LAN system?

   • Yes  : Perform the diagnosis according to DTC for LAN system. Ref. to LAN SYSTEM (DIAGNOSTICS)>List of Diagnostic Trouble Code (DTC) .
   • No  : Go to 4. 
4. CHECK COMBINATION METER. 

   Check the combination meter. Ref. to INSTRUMENTATION/DRIVER INFO>Combination Meter System>OPERATION>SELF-DIAGNOSIS DISPLAY MODE .

   Is the check result OK?

   • Yes  : Replace the VDCCM only. Ref. to VEHICLE DYNAMICS CONTROL (VDC)>VDC Control Module and Hydraulic Control Unit (VDCCM&H/U)>REPLACEMENT .
   • No  : Replace the combination meter. Ref. to INSTRUMENTATION/DRIVER INFO>Combination Meter .