C1249: Stop Light Switch Circuit
Short answer: C1249 means “Stop Light Switch Circuit”. Below is what it means on each of the 2 cars we cover, with a link to the full page for each car.
C1249 on each car
| Car | Meaning on this car | Confidence |
|---|---|---|
| Toyota Vitz (1st gen) | Stop lamp switch circuit | medium |
| Toyota Corolla (9th gen, E120) | Stop Light Switch Circuit (C1249/49) | high |
Symptoms
- With IG1 terminal voltage at 10V − 16V, ABS not controlling stop light switch circuit is open for 1.0 sec. or longer.
Likely causes
- Stop light switch; Stop light switch circuit
What to check, in order
- Workshop check order (RM821E): INSPECT STOP LIGHT SWITCH OPERATION -> INSPECT SKID CONTROL ECU CONNECTOR (STP TERMINAL VOLTAGE) -> INSPECT HARNESS AND CONNECTOR (BRAKE ACTUATOR ASSEMBLY − STOP
Causes and checks above are the general meaning. The exact test steps and values differ by car: open your car’s page.