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Home >> Hyundai >> 2020 >> Sonata SEL >> Repair and Diagnosis >> External Pages >> Different variant/trim >> Section 30 (Abs/ESC Diagnosis (HEV) (1 Of 2)) >> DTC C1503-01: TCS Switch Error >> DTC Information And Inspection >> DTC Detecting Condition

DTC Information And Inspection: DTC Detecting Condition

WARNING: This page is about a different variant/trim than selected.
Troubleshooting Condition Possible Cause
Main Action
  • Monitor the switch circuit signal
  1. Short to power in ESP (ESC/TCS) OFF switch circuit
  2. Defected ESP (ESC/TCS) OFF switch
Threshold Value
  • When "ESP (TCS/ESC) OFF" switch is "ON" for more than 60 seconds
MIL
  • No MIL ON (DTC only)
Reset Condition
  • When "ESP/TCS OFF" switch is 'OFF' for 1 second
NOTE: * IEBM (Integrated Electric Brake Module: ESP Control Module)
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