Last Modified: 05-13-2024 6.11:8.1.0 Doc ID: RM100000001HBN0
Model Year Start: 2020 Model: GR Corolla Prod Date Range: [01/2019 - 09/2022]
Title: PRE-COLLISION: PRE-COLLISION SYSTEM (for Gasoline Model): C142571; Stop Light Relay Actuator Stuck; 2020 - 2022 MY Corolla Corolla Hatchback GR Corolla [01/2019 - 09/2022]

DTC

C142571

Stop Light Relay Actuator Stuck

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 (stop light switch assembly) 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 ignition switch is turned to ON, 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.

Electronically controlled brake system

PROCEDURE

1.

GO TO ELECTRONICALLY CONTROLLED BRAKE SYSTEM

HINT:

If DTC C142571 is output by the pre-collision system, perform troubleshooting for the electronically controlled brake system.

w/ Electric Parking Brake System: Click here 2019 - 2022 MY Corolla Corolla Hatchback GR Corolla [06/2018 - 09/2022]; BRAKE CONTROL / DYNAMIC CONTROL SYSTEMS: ELECTRONICALLY CONTROLLED BRAKE SYSTEM (for Gasoline Model with Electric Parking Brake System): HOW TO PROCEED WITH TROUBLESHOOTING

w/o Electric Parking Brake System: Click here 2020 - 2022 MY Corolla Corolla Hatchback GR Corolla [01/2019 - 09/2022]; BRAKE CONTROL / DYNAMIC CONTROL SYSTEMS: ELECTRONICALLY CONTROLLED BRAKE SYSTEM (for Gasoline Model without Electric Parking Brake System): HOW TO PROCEED WITH TROUBLESHOOTING

NEXT

END