Toyota Tacoma (2015-2018) Service Manual: Brake Switch "A" Circuit Open (P057113)

Toyota Tacoma (2015-2018) Service Manual / Cruise Control / Dynamic Radar Cruise Control System(for 2gr-fks) / Brake Switch "A" Circuit Open (P057113)

DESCRIPTION

When the brakes are applied by the dynamic radar cruise control system, the skid control ECU (master cylinder solenoid)*1 or skid control ECU (brake actuator assembly)*2 operates the stop light switch assembly (stop light relay) to illuminate the stop lights.

If the ECM receives a stop light switch control relay malfunction signal from the skid control ECU (brake actuator assembly), DTC P057113 is stored.

DTC No.	Detection Item	DTC Detection Condition	Trouble Area	MIL
P057113	Brake Switch "A" Circuit Open	While the vehicle speed is 36 km/h (22 mph) or more and the dynamic radar cruise control system is operating, the ECM detects the stop light switch control relay malfunction signal from the skid control ECU (master cylinder solenoid)1 or skid control ECU (brake actuator assembly)2 for approximately 0.5 seconds or more.	Pre-collision system	Does not come on

*1: for Hydraulic Brake Booster
*2: for Vacuum Brake Booster

CAUTION / NOTICE / HINT

HINT:

When DTC P057113 is stored by the dynamic radar cruise control system, DTC C1A4B is stored by the pre-collision system. Therefore, if DTC P057113 is stored, inspect the pre-collision system first.

PROCEDURE

1.	GO TO PRE-COLLISION SYSTEM

Click here

END

Radar Cruise Control Presence Determination Malfunction (Engine / HV) (C1A52)

DESCRIPTION DTC C1A52 is stored when the ECM cannot recognize the millimeter wave radar sensor assembly. DTC No. Detection Item DTC Detection Condition ...

Front Radar Sensor (C1A10)

DESCRIPTION C1A10 is output when there is an internal malfunction in the millimeter wave radar sensor assembly. DTC No. Detection Item DTC Detection Condition ...

Other materials:

Removal
REMOVAL PROCEDURE 1. REMOVE STEERING PAD (See page ) 2. REMOVE STEERING WHEEL ASSEMBLY 3. REMOVE LOWER STEERING COLUMN COVER 4. REMOVE UPPER STEERING COLUMN COVER 5. REMOVE SPIRAL CABLE SUB-ASSEMBLY WITH SENSOR (a) Slide the slider and disconnect the airbag connector ...

Installation
INSTALLATION PROCEDURE 1. INSTALL REAR SEAT 3 POINT TYPE OUTER BELT ASSEMBLY (a) Before installing the rear seat 3 point type outer belt assembly, check the ELR function. Text in Illustration *a Unlock *b ...

Center Airbag Sensor Communication Stop Mode
DESCRIPTION Detection Item Symptom Trouble Area Center Airbag Sensor Communication Stop Mode Either condition is met: Communication stop for "Airbag" is indicated on the "Communication Bus Check" sc ...