FixVault

DTC C1503 TCS/ESC Switch Error: DTC Detecting Condition

DETECTING CONDITION AND POSSIBLE CAUSE

Item Detecting Condition Possible cause
DTC Strategy
  • Fixation Monitoring
  • Short of TCS/ESC off switch circuit
  • Faulty TCS/ESC off switch
Monitoring Period
  • Continuous (once per loop)
Enable Conditions
  • In case of the signal from TCS/ESC off switch continuously on for 60 sec.
Fail Safe
  • HECU cancels TCS/ESC off mode. Permit TCS/ESC control after detecting switch failure.
  • The ABS/EBD/TCS/ESC warning lamps are not activated.
  • If the failure condition of TCS/ESC off switch is restored and signal changes on/off, then ECU uses the signal from ESC/TCS off switch again.