Last Modified: 05-08-2025 6.11:8.1.0 Doc ID: RM1000000021JCS
Model Year Start: 2022 Model: RAV4 Prod Date Range: [12/2021 -           ]
Title: PRE-COLLISION: PRE-COLLISION SYSTEM: C142571; Stop Light Relay Actuator Stuck; 2022 - 2025 MY RAV4 RAV4 HV [12/2021 -        ]

DTC

C142571

Stop Light Relay Actuator Stuck

DESCRIPTION

for HV Model:

  • The stop light switch and brake actuator assembly (No. 2 skid control ECU) output stop light signals. If the brake actuator assembly (No. 2 skid control ECU) detects a malfunction in circuits related to the stop light, it informs the millimeter wave radar sensor assembly via CAN communication, and DTC C142571 is stored.

for Gasoline Model:

  • The stop light switch and brake actuator assembly (skid control ECU) output stop light signals. If the brake actuator assembly (skid control ECU) detects a malfunction in circuits related to the stop light, it informs the millimeter wave radar sensor assembly via CAN communication, and DTC C142571 is stored.

DTC No.

Detection Item

DTC Detection Condition

Trouble Area

C142571

Stop Light Relay Actuator Stuck

for HV Model:

  • When the ignition switch is ON for 3 seconds or more, a stop light circuit malfunction signal is received from the brake actuator assembly (No. 2 skid control ECU) for 1 second or more.

for Gasoline Model:

  • When the ignition switch is ON for 3 seconds or more, a stop light circuit malfunction signal is received from the brake actuator assembly (skid control ECU) for 1 second or more.

Electronically controlled brake system

PROCEDURE

1.

CHECK ELECTRONICALLY CONTROLLED BRAKE SYSTEM

(a) Check the electronically controlled brake system.

for HV Model:

Click here 2022 - 2025 MY RAV4 RAV4 HV [12/2021 -        ]; BRAKE CONTROL / DYNAMIC CONTROL SYSTEMS: ELECTRONICALLY CONTROLLED BRAKE SYSTEM (w/o Vacuum Brake Booster): DTC CHECK / CLEAR

for Gasoline Model:

Click here 2019 - 2025 MY RAV4 RAV4 HV [11/2018 -        ]; BRAKE CONTROL / DYNAMIC CONTROL SYSTEMS: ELECTRONICALLY CONTROLLED BRAKE SYSTEM (w/ Vacuum Brake Booster): DTC CHECK / CLEAR

Chassis > Brake/EPB > Trouble Codes

HINT:

  • for HV Model:

    When C142571 is detected by the pre-collision system, C1380 may also be detected in the electronically controlled brake system. Therefore, check the electronically controlled brake system first when C142571 is detected.

  • for Gasoline Model:

    When C142571 is detected by the pre-collision system, C13807E or C13807F may also be detected in the electronically controlled brake system. Therefore, check the electronically controlled brake system first when C142571 is detected.

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