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Home >> Genesis >> 2019 >> G80 3.8, RWD >> Repair and Diagnosis >> Brakes >> Traction Control >> Electronic Stability Control Diagnosis >> DTC C2131: ESS Brake Lamp Relay Error >> DTC Information >> DTC Detecting Condition

DTC Information: DTC Detecting Condition

Item Detecting Condition Possible Cause
DTC Strategy
  • Voltage Monitoring
  1. Open or short in the ESS brake lamp relay (ESS relay) circuit
  2. Faulty Stop Signal Electronic Module
Monitoring Period
  • When ESS brake lamp relay drive OFF
    • If the monitor of ESS Brake Lamp Drive is ON for 1 sec.
    • If the monitor of ESS Brake Lamp Relay is different from BLS signal for 1 sec.
  • When ESS brake lamp relay drive ON
    • If the monitor of ESS Brake Lamp Drive is OFF for 800 msec.
    • If the monitor of ESS Brake Lamp Relay is ON for 800 msec.

      * BLS: Brake Light Switch
Fail Safe
  • No MIL
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