Toyota Camry (XV70): Brake Switch "A" Circuit Open (P057113)
DESCRIPTION
The skid control ECU (brake actuator assembly) receives stop light switch assembly signals and uses them to determine whether or not the brakes are applied.
The skid control ECU (brake actuator assembly) has a detection circuit that it uses to detect an open in the stop light input line.
If the skid control ECU (brake actuator assembly) detects an open in this circuit, it will store this DTC.
|
DTC No. | Detection Item |
DTC Detection Condition | Trouble Area |
|---|---|---|---|
|
P057113 | Brake Switch "A" Circuit Open |
An open in the stop light switch assembly input line continues for 3 seconds or more. |
|
WIRING DIAGRAM
Refer to DTC P057111.
Click here
.gif)
CAUTION / NOTICE / HINT
NOTICE:
After replacing the skid control ECU (brake actuator assembly), perform acceleration sensor zero point calibration and system information memorization.
Click here
PROCEDURE
| 1. |
CHECK HARNESS AND CONNECTOR (STOP LIGHT SWITCH ASSEMBLY OUTPUT CIRCUIT) |
| (a) Make sure that there is no looseness at the locking part and the connecting part of the connector. OK: The connector is securely connected. |
|
.png)
(b) Measure the voltage according to the value(s) in the table below.
Standard Voltage:
|
Tester Connection | Condition |
Specified Condition |
|---|---|---|
|
A81-3 (L) - Body ground |
Brake pedal depressed |
11 to 14 V |
|
A81-3 (L) - Body ground |
Brake pedal released |
Below 1.5 V |
| NG | .gif) | REPLACE STOP LIGHT SWITCH ASSEMBLY |
|
.gif)
| 2. |
CHECK HARNESS AND CONNECTOR (STOP LIGHT SWITCH ASSEMBLY INPUT CIRCUIT) |
| (a) Make sure that there is no looseness at the locking part and the connecting part of the connector. OK: The connector is securely connected. |
|
.png)
(b) Disconnect the A33 skid control ECU (brake actuator assembly) connector.
(c) Check both the connector case and the terminals for deformation and corrosion.
OK:
No deformation or corrosion.
(d) Measure the voltage according to the value(s) in the table below.
Standard Voltage:
|
Tester Connection | Condition |
Specified Condition |
|---|---|---|
|
A33-9 (STP) - Body ground |
Brake pedal depressed |
11 to 14 V |
| OK | | REPLACE BRAKE ACTUATOR ASSEMBLY |
| NG | | REPAIR OR REPLACE HARNESS OR CONNECTOR |
READ NEXT:
Control Module Communication Bus "B" Off Bus Off (U007488,...,U015187)
DESCRIPTION The skid control ECU (brake actuator assembly) communicates with the following ECUs and sensors via CAN communication.
ECM
TCM (ECM)
Yaw rate and acceleration sensor (airbag s
ABS Warning Light Remains ON
DESCRIPTION This procedure is for troubleshooting when the ABS warning light remains on but no DTCs are output.
The skid control ECU (brake actuator assembly) controls the ABS warning light in the c
ABS Warning Light does not Come ON
DESCRIPTION The skid control ECU (brake actuator assembly) controls the ABS warning light in the combination meter assembly via CAN communication. CAUTION / NOTICE / HINT
NOTICE: After replacing the
SEE MORE:
Reverse Signal Circuit
DESCRIPTION The radio and display receiver assembly receives a reverse signal from the BKUP LP relay. WIRING DIAGRAM
PROCEDURE
1.
CHECK BACK-UP LIGHT (a) Move the shift lever to R and check if the back-up lights come on.
OK: The back-up lights come on.
NG
GO TO LIGHTIN
Maintenance data (fuel, oil level, etc.)
Dimensions and weights (2WD models)
*1: Unladen vehicles
*2: For LE or XLE grade models
*3: For SE or XSE grade models
*4: 205/65R16 tires
*5: 215/55R17 tires and TRD models with 235/40R19 tires
*6: 235/45R18, and SE or XSE grade models with 235/40R19 tires
*7: For TRD models
Dimensions an
