Toyota Tacoma manuals

Toyota Tacoma 2015-2018 Service Manual: 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

NEXT

END

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