Lexus RX (RX 350L, RX450h) 2016-2025 Repair Manual: Stop Light Relay Actuator Stuck (C142571)
DESCRIPTION
The skid control ECU (brake actuator assembly) sends a stop light operation request signal to the stop light relay (semiconductor PWR integration ECU). If the skid control ECU (brake actuator assembly) detects a malfunction in the stop light relay (semiconductor PWR integration ECU) circuit, the forward recognition camera stores this DTC.
| DTC No. | Detection Item | DTC Detection Condition | Trouble Area |
|---|---|---|---|
| C142571 | Stop Light Relay Actuator Stuck | 3 seconds or more after the engine switch is turned on (IG), the forward recognition camera receives a stop light relay circuit malfunction signal from the skid control ECU (brake actuator assembly) for approximately 1 second or more. | Vehicle stability control system |
PROCEDURE
| 1. | GO TO VEHICLE STABILITY CONTROL SYSTEM |
HINT:
If DTC C142571 is output by the pre-collision system, perform troubleshooting for the vehicle stability control system.
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Lexus RX (RX 350L, RX450h) 2016-{YEAR} Owners Manual
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Lexus RX (RX 350L, RX450h) 2016-{YEAR} Repair Manual
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