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:
Clearance Warning ECU Power Source Circuit
DESCRIPTION
This circuit provides power to operate the clearance warning ECU assembly.
WIRING DIAGRAM
CAUTION / NOTICE / HINT
NOTICE:
Inspect the fuse for circuits related to this system before performing the following
inspection procedure.
PROCEDURE
1.
CHECK HARNES ...
Disassembly
DISASSEMBLY
PROCEDURE
1. INSPECT FRONT PROPELLER SHAFT UNIVERSAL JOINT SPIDER BEARING
(a) Check the spider bearings for wear and damage.
(b) Check each spider bearing's axial play by turning the yoke while holding
the shaft tightly.
Maximum bearing axial play:
0 to 0.05 mm (0 to 0.002 i ...
Parts Location
PARTS LOCATION
ILLUSTRATION
ILLUSTRATION
ILLUSTRATION
ILLUSTRATION
...
