DTC C1249/58 Stop Light Switch Circuit: Description
WARNING: This page is about a different car, the 2008 Toyota Avalon. However, it is still accessible from the selected car via links, so may be relevant.
This circuit recognizes brake operation by sending a stop light signal to the skid control ECU.
The skid control ECU has an open detection circuit, which outputs this DTC when detecting an open in the stop light signal input line (STP terminal) or the ground line of the stop light circuit with the stop light switch OFF (brake pedal not depressed).
DTC DETECTING CONDITION CHART
| DTC No. | DTC Detecting Condition | Trouble Area |
|---|---|---|
| C1249/58 | With the stop light switch OFF (brake pedal not depressed), the power supply voltage of the stop light switch is 40 % to 67 % of the battery voltage. |
|