C1249 LEXUS, TOYOTA, SCION: OPEN IN STOP LIGHT SWITCH CIRCUIT
POST UPDATED IN February, 2023
C1249 LEXUS, TOYOTA, SCION: OPEN IN STOP LIGHT SWITCH CIRCUIT
The Slip Control Unit detects the various brake working situations using the signal provided by the brake light switch. The Slip Control Unit has an open circuit detection circuit.
The OBD2 fault code C1249 is set when the brake light input line has an open circuit while the switch is off.
Reasons for setting the DTC C1249 OBDII code:
To solve the C1249 OBD2 diagnostic code, try this: