DTC C1249/49 Open in Stop Light Switch Circuit: Description
WARNING: This page is about a different car, the 2009 Toyota Corolla. However, it is still accessible from the selected car via links, so may be relevant.
The skid control ECU (housed in the actuator assembly) inputs stop light switch signals and the condition of brake operation.
The skid control ECU has an open detection circuit, which outputs this DTC when an open is detected in the stop light input line or the ground line of the stop light circuit with the stop light switch off (brake pedal not depressed).
DTC DETECTION CONDITION CHART
| DTC Code | DTC Detection Condition | Trouble Area |
|---|---|---|
| C1249/49 | When IG1 terminal voltage is 9.5 V or more, an open in stop light switch circuit continues for 0.3 seconds or more. |
|