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 |
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| NEXT | .gif) |
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:
Clutch Switch
Components
COMPONENTS
ILLUSTRATION
Removal
REMOVAL
PROCEDURE
1. PRECAUTION
NOTICE:
After turning the engine switch off, waiting time may be required before disconnecting
the cable from the battery terminal. Therefore, make sure to read the disconnecting
the cable from the battery t ...
On-vehicle Inspection
ON-VEHICLE INSPECTION
PROCEDURE
1. CHECK BATTERY CONDITION
NOTICE:
If the battery is weak or if the engine is difficult to start, recharge the battery
and perform inspections again before returning the vehicle to the customer.
(a) Check the battery for damage or deformation. If severe damage, ...
Inspection
INSPECTION
PROCEDURE
1. INSPECT TRANSMISSION FLOOR SHIFT ASSEMBLY (w/o Smart Key System)
HINT:
If the results of the following inspections are as specified but a malfunction
has occurred, replace the transmission floor shift assembly.
(a) Inspect the wire harness.
(1) Disconnect the shift lo ...
