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DTC Detection Logic

DTC No. Trouble diagnosis name (Trouble diagnosis content) DTC detecting condition Possible cause
P3112 STOP LAMP SWITCH (Stop lamp switch stuck ON) Stop lamp switch is ON state for extremely longtime. Without ICC models
  • Harness or connectors (Stop lamp switch circuit is shorted.)
  • Stop lamp switch With ICC models
  • Harness or connectors (Stop lamp switch circuit is shorted.)
  • Stop lamp switch
  • ICC brake hold relay

DTC CONFIRMATION PROCEDURE

  1. PERFORM COMPONENT FUNCTION CHECK 

    Refer to "COMPONENT FUNCTION CHECK ".

    NOTE: Use component function check to check the overall function of the stop lamp switch circuit. During this check, a DTC might not be confirmed.

    Is the inspection result normal? 

    YES: Proceed to "DIAGNOSIS PROCEDURE ".

    NO: INSPECTION END

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