DTC C1249/49 Open in Stop Light Switch Circuit: Description

The skid control ECU inputs the stop light switch signal and detects the status of the brake operation.

The skid control ECU has an open detection circuit. If an open in the stop light switch input line or GND side stop light circuit is detected when the stop light switch is off, this DTC is output.

DTC TROUBLE DETECTION CHART

DTC No.	DTC Detecting Condition	Trouble Area
C1249/49	All the following conditions continue for at least 0.3 seconds. IG1 terminal voltage is between 9.5 and 17.2 V. Open in stop light switch circuit.	Stop light switch Stop light switch circuit