DTC C1249/49 Open in Stop Light Switch Circuit: Description
The skid control ECU (housed in the actuator assembly) inputs the stop light switch signal and the condition of brake operation.
The skid control ECU has an open detection circuit, which outputs this DTC when detecting an open 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 | After the ignition switch is turned to ON, the STP terminal voltage of the ECU is 40% to 67% of its supplied voltage for 3 seconds. |
|