DTC C1A4B: Stop Light Relay Circuit [08/2019 - ]: Description
The skid control ECU (brake actuator assembly) sends a stop light operation request signal to the stop light relay (stop light switch assembly). If the skid control ECU (brake actuator assembly) detects a malfunction in the stop light relay circuit, the millimeter wave radar sensor assembly stores DTC C1A4B.
| DTC No. | Detection Item | DTC Detection Condition | Trouble Area |
|---|---|---|---|
| C1A4B | Stop Light Relay Circuit | While the engine switch is on (IG), the millimeter wave radar sensor assembly receives a stop light relay circuit malfunction signal from the skid control ECU (brake actuator assembly) for 1 second or more. |
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