Last Modified: 05-13-2024 6.11:8.1.0 Doc ID: RM10000000260SF
Model Year Start: 2023 Model: GR Corolla Prod Date Range: [09/2022 -           ]
Title: BRAKE CONTROL / DYNAMIC CONTROL SYSTEMS: ELECTRONICALLY CONTROLLED BRAKE SYSTEM (for Gasoline Model without Electric Parking Brake System TMC Made): P057113; Brake Switch "A" Circuit Open; 2023 - 2025 MY Corolla Corolla Hatchback GR Corolla [09/2022 -        ]

DTC

P057113

Brake Switch "A" Circuit Open

DESCRIPTION

The skid control ECU (brake actuator assembly) detects the brake operating conditions through a signal transmitted by the stop light switch.

The skid control ECU incorporates a circuit to detect an open circuit.

This DTC is output when an open circuit is detected in the stop light signal input line.

DTC No.

Detection Item

DTC Detection Condition

Trouble Area

P057113

Brake Switch "A" Circuit Open

When the +BS terminal voltage is 9.5 V or more, an open is detected in the STP terminal circuit for 0.3 seconds or more and the stop light drive output (STPO) is off for 0.1 seconds or more.

  • Wire harness and connector
  • Skid control ECU (Brake actuator assembly)
  • Stop light switch assembly
  • STP circuit

WIRING DIAGRAM

Refer to DTC C13807E.

Click here 2023 - 2025 MY Corolla Corolla Hatchback GR Corolla [09/2022 -        ]; BRAKE CONTROL / DYNAMIC CONTROL SYSTEMS: ELECTRONICALLY CONTROLLED BRAKE SYSTEM (for Gasoline Model without Electric Parking Brake System TMC Made): C13807E; Stop Lamp Relay Actuator Stuck On

CAUTION / NOTICE / HINT

NOTICE:

Inspect the fuses for circuits related to this system before performing the following procedure.

PROCEDURE

1.

CHECK STOP LIGHT OPERATION

(a) Check that the stop lights come on when the brake pedal is depressed.

Result

Proceed to

All stop lights illuminate when the brake pedal is depressed and turn off when the brake pedal is released.

A

All stop lights do not illuminate when the brake pedal is depressed.

B

One or more stop lights illuminate when the brake pedal is depressed but remain on when the brake pedal is released.

C

B

GO TO STEP 10

C

GO TO STEP 6

A

2.

READ VALUE USING GTS (Stop Light SW)

(a) Check the value of Stop Light SW when the brake pedal is depressed.

Chassis > Brake/EPB > Data List

Tester Display

Measurement Item

Range

Normal Condition

Diagnostic Note

Stop Light SW

Stop light switch assembly status

(STP or STP2 terminal input)

OFF / ON

OFF: Brake pedal released

ON: Brake pedal depressed

HINT:

  • Stop light control relay off: STP terminal status displayed.
  • Stop light control relay on: STP2 terminal status displayed.

Chassis > Brake/EPB > Data List

Tester Display

Stop Light SW

Result

Proceed to

The value of Stop Light SW is ON.

A

Other than above.

B

B

GO TO STEP 9

A

3.

STOP LIGHT SWITCH ASSEMBLY OUTPUT CIRCUIT INSPECTION

(a) Turn the ignition switch off.

*a

Component with harness connected

(Stop Light Switch Assembly)

(b) Make sure that there is no looseness at the locking part and the connecting part of the connector.

OK:

The connector is securely connected.

(c) Turn the ignition switch to ON.

(d) Measure the voltage according to the value(s) in the table below.

Standard Voltage:

Tester Connection

Condition

Specified Condition

A53-1 (OUT) - Body ground

  • Ignition switch ON
  • The headlights are on
  • The blower motor switch is in the HI position
  • The rear window defogger is turned on
  • Stop light switch assembly off (Brake pedal released)

Below 1.5 V

NG

GO TO STEP 6

OK

4.

CLEAR DTC

(a) Clear the DTCs.

Chassis > Brake/EPB > Clear DTCs

(b) Turn the ignition switch off.

NEXT

5.

RECONFIRM DTC

(a) Based on the Freeze Frame Data and interview with the customer, attempt to reproduce the conditions when the malfunction occurred.

(b) Check if the same DTC is output.

Chassis > Brake/EPB > Trouble Codes

Result

Proceed to

DTC P057113 is not output.

A

DTC P057113 is output.

B

A

USE SIMULATION METHOD TO CHECK

B

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6.

CHECK STOP LIGHT SWITCH ASSEMBLY

(a) Turn the ignition switch off.

*a

Front view of wire harness connector

(to Stop Light Switch Assembly)

(b) Make sure that there is no looseness at the locking part and the connecting part of the connector.

OK:

The connector is securely connected.

(c) Disconnect the A53 stop light switch assembly connector.

(d) Check both the connector case and the terminals for deformation and corrosion.

OK:

No deformation or corrosion.

(e) Measure the voltage according to the value(s) in the table below.

Standard Voltage:

Tester Connection

Condition

Specified Condition

A53-1 (OUT) - Body ground

Stop light switch assembly off

(Brake pedal released)

Below 1.5 V

OK

REPLACE STOP LIGHT SWITCH ASSEMBLY

NG

7.

CHECK BRAKE ACTUATOR ASSEMBLY

(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.

*a

Front view of wire harness connector

(to Stop Light Switch Assembly)

(b) Disconnect the A140 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

A53-1 (OUT) - Body ground

Stop light switch assembly off

(Brake pedal released)

Below 1.5 V

OK

REPLACE BRAKE ACTUATOR ASSEMBLY 2023 MY Corolla Corolla Hatchback GR Corolla [09/2022 - 11/2022]; BRAKE CONTROL / DYNAMIC CONTROL SYSTEMS: BRAKE ACTUATOR (for Gasoline Model): REMOVAL 2023 - 2025 MY Corolla Corolla Hatchback GR Corolla [11/2022 -        ]; BRAKE CONTROL / DYNAMIC CONTROL SYSTEMS: BRAKE ACTUATOR (for Gasoline Model): REMOVAL

NG

8.

CHECK FOR SHORT TO +B IN STP CIRCUIT

(a) Check that there is no short to +B in the STP circuit (wire harnesses, connectors and stop lights).

OK:

No short to +B.

OK

USE SIMULATION METHOD TO CHECK

NG

REPAIR OR REPLACE MALFUNCTIONING PART

9.

CHECK HARNESS AND CONNECTOR (STP TERMINAL)

(a) Turn the ignition switch off.

*a

Front view of wire harness connector

(to Skid Control ECU (Brake Actuator Assembly))

(b) Make sure that there is no looseness at the locking part and the connecting part of the connector.

OK:

The connector is securely connected.

(c) Disconnect the A140 skid control ECU (brake actuator assembly) connector.

(d) Check both the connector case and the terminals for deformation and corrosion.

OK:

No deformation or corrosion.

(e) Measure the voltage according to the value(s) in the table below.

Standard Voltage:

Tester Connection

Condition

Specified Condition

A140-11 (STP) - Body ground

Stop light switch assembly on

(Brake pedal depressed)

11 to 14 V

OK

REPLACE BRAKE ACTUATOR ASSEMBLY 2023 MY Corolla Corolla Hatchback GR Corolla [09/2022 - 11/2022]; BRAKE CONTROL / DYNAMIC CONTROL SYSTEMS: BRAKE ACTUATOR (for Gasoline Model): REMOVAL 2023 - 2025 MY Corolla Corolla Hatchback GR Corolla [11/2022 -        ]; BRAKE CONTROL / DYNAMIC CONTROL SYSTEMS: BRAKE ACTUATOR (for Gasoline Model): REMOVAL

NG

REPAIR OR REPLACE HARNESS OR CONNECTOR

10.

CHECK HARNESS AND CONNECTOR (STOP LIGHT SWITCH ASSEMBLY - STOP LIGHT)

(a) Check that there is no open in the wire harnesses and connectors from terminal OUT of the stop light switch assembly to the stop lights.

OK:

No open.

OK

REPLACE BRAKE ACTUATOR ASSEMBLY 2023 MY Corolla Corolla Hatchback GR Corolla [09/2022 - 11/2022]; BRAKE CONTROL / DYNAMIC CONTROL SYSTEMS: BRAKE ACTUATOR (for Gasoline Model): REMOVAL 2023 - 2025 MY Corolla Corolla Hatchback GR Corolla [11/2022 -        ]; BRAKE CONTROL / DYNAMIC CONTROL SYSTEMS: BRAKE ACTUATOR (for Gasoline Model): REMOVAL

NG

REPAIR OR REPLACE HARNESS OR CONNECTOR