Last Modified: 05-13-2024 6.11:8.1.0 Doc ID: RM10000000265V2
Model Year Start: 2023 Model: GR Corolla Prod Date Range: [09/2022 - 11/2022]
Title: BRAKE CONTROL / DYNAMIC CONTROL SYSTEMS: ELECTRONICALLY CONTROLLED BRAKE SYSTEM (for Gasoline Model without Electric Parking Brake System TMMMS Made): C13807E; Stop Lamp Relay Actuator Stuck On; 2023 MY Corolla Corolla Hatchback GR Corolla [09/2022 - 11/2022]

DTC

C13807E

Stop Lamp Relay Actuator Stuck On

DESCRIPTION

When any of the following conditions are met, the skid control ECU (brake actuator assembly) sets the drive output (STPO) ON which operates the stop light control relay (stop light switch assembly) and turns on the stop lights.

Illumination Conditions:

  • Pre-collision brake is operating.*
  • The dynamic radar cruise control system is operating and is applying the brakes.*
  • Secondary collision brake is operating.*
  • *: w/ Pre-collision System

DTC No.

Detection Item

DTC Detection Condition

Trouble Area

C13807E

Stop Lamp Relay Actuator Stuck On

When the voltage at the +BS terminal is between 10 V or more and the stop light control relay (stop light switch assembly) drive output (STPO) is off, the signal at the STP2 terminal is different from the input signal at the STP terminal for 5 seconds or more.
  • Wire harness or connector
  • Stop light switch assembly
  • Skid control ECU (brake actuator assembly)
  • Rear combination light assembly LH
  • Rear combination light assembly RH
  • Center stop light set

WIRING DIAGRAM

CAUTION / NOTICE / HINT

NOTICE:

  • Inspect the fuses for circuits related to this system before performing the following procedure.
  • After replacing the skid control ECU (brake actuator assembly), perform acceleration sensor zero point calibration and store system information memorization.

    Click here 2023 MY Corolla Corolla Hatchback GR Corolla [09/2022 - 11/2022]; BRAKE CONTROL / DYNAMIC CONTROL SYSTEMS: ELECTRONICALLY CONTROLLED BRAKE SYSTEM (for Gasoline Model without Electric Parking Brake System TMMMS Made): UTILITY

HINT:

When DTC P057111, P057112 and/or P057113 are output together with DTC C13807E, inspect and repair the trouble areas indicated by DTC P057111, P057112 and/or P057113 first.

P057111: Click here 2023 MY Corolla Corolla Hatchback GR Corolla [09/2022 - 11/2022]; BRAKE CONTROL / DYNAMIC CONTROL SYSTEMS: ELECTRONICALLY CONTROLLED BRAKE SYSTEM (for Gasoline Model without Electric Parking Brake System TMMMS Made): P057111; Brake Switch "A" Circuit Short to Ground

P057112: Click here 2023 MY Corolla Corolla Hatchback GR Corolla [09/2022 - 11/2022]; BRAKE CONTROL / DYNAMIC CONTROL SYSTEMS: ELECTRONICALLY CONTROLLED BRAKE SYSTEM (for Gasoline Model without Electric Parking Brake System TMMMS Made): P057112; Brake Switch "A" Circuit Short to Battery

P057113: Click here 2023 MY Corolla Corolla Hatchback GR Corolla [09/2022 - 11/2022]; BRAKE CONTROL / DYNAMIC CONTROL SYSTEMS: ELECTRONICALLY CONTROLLED BRAKE SYSTEM (for Gasoline Model without Electric Parking Brake System TMMMS Made): P057113; Brake Switch "A" Circuit Open

PROCEDURE

1.

CHECK STOP LIGHT ILLUMINATION STATUS

(a) With the brake pedal released, check the illumination status of the brake lights.

Result

Proceed to

The stop lights are illuminated.

A

The stop lights are not illuminated.

B
B

GO TO STEP 7

A

2.

CHECK HARNESS AND CONNECTOR (STOP LIGHT CONTROL RELAY 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.

*a

Component with harness connected

(Stop Light Switch Assembly)

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

Standard Voltage:

Tester Connection

Condition

Specified Condition

A53-4 (ACC) - Body ground

Always

11 to 14 V
NG

GO TO STEP 5

OK

3.

CHECK STOP LIGHT ILLUMINATION STATUS

(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.

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

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

OK:

No deformation or corrosion.

(d) Check the illumination status of the brake lights.

Result

Proceed to

The stop lights are illuminated.

A

The stop lights are not illuminated.

B
B

REPLACE STOP LIGHT SWITCH ASSEMBLY

A

4.

CHECK STOP LIGHT ILLUMINATION STATUS

(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.

(b) Disconnect the A100 skid control ECU (brake actuator assembly) connector.

(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) Check the illumination status of the brake lights.

Result

Proceed to

The stop lights are illuminated.

A

The stop lights are not illuminated.

B
A

REPAIR OR REPLACE HARNESS OR CONNECTOR (STOP LIGHT CIRCUIT)
B

REPLACE BRAKE ACTUATOR ASSEMBLY

5.

CHECK HARNESS AND CONNECTOR (STOP LIGHT CONTROL RELAY CIRCUIT)

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

OK:

The connector is securely connected.

*a

Component with harness connected

(Stop Light Switch Assembly)

(b) Disconnect the A100 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

A53-4 (ACC) - Body ground

Always

11 to 14 V
OK

REPLACE BRAKE ACTUATOR ASSEMBLY

NG

6.

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

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

OK:

The connector is securely connected.

(b) Disconnect the A53 stop right switch assembly connector.

(c) Disconnect the A100 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 resistance according to the value(s) in the table below.

Standard Resistance:

Tester Connection

Condition

Specified Condition

A53-4 (ACC) or A100-3 (STPO) - Body ground and other terminals

Always

10 kΩ or higher
OK

REPLACE STOP LIGHT SWITCH ASSEMBLY

NG

REPAIR OR REPLACE HARNESS OR CONNECTOR

7.

CHECK STOP LIGHT OPERATION

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

OK:

The stop lights illuminate.

NG

GO TO STEP 9

OK

8.

CHECK HARNESS AND CONNECTOR (STOP LIGHT SIGNAL INPUT CIRCUIT)

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

OK:

The connector is securely connected.

*a

Front view of wire harness connector

(to Skid Control ECU (Brake Actuator Assembly))

(b) Disconnect the A100 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

A100-24 (STP2) - Body ground

Brake pedal depressed

11 to 14 V
OK

REPLACE BRAKE ACTUATOR ASSEMBLY

NG

REPAIR OR REPLACE HARNESS OR CONNECTOR

9.

CHECK STOP LIGHT OPERATION

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

OK:

The connector is securely connected.

(b) Disconnect the A100 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) Check that the stop lights come on when the brake pedal is depressed.

OK:

The stop lights illuminate.

OK

REPLACE BRAKE ACTUATOR ASSEMBLY

NG

10.

CHECK HARNESS AND CONNECTOR (STOP LIGHT SWITCH ASSEMBLY - REAR COMBINATION LIGHT ASSEMBLY LH)

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

OK:

The connector is securely connected.

*a

Front view of wire harness connector

(to Rear Combination Light Assembly LH)

(b) Disconnect the A100 skid control ECU (brake actuator assembly) connector.

(c) Disconnect the O104 rear combination light assembly LH 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

O104-2 (STP) - Body ground

Brake pedal depressed

11 to 14 V
OK

Refer to "Left or right stop light does not illuminate" of problem symptoms table.

Click here GO TO LIGHTING SYSTEM (REAR COMBINATION LIGHT ASSEMBLY LH (STOP LIGHT CIRCUIT))

NG

11.

CHECK HARNESS AND CONNECTOR (STOP LIGHT SWITCH ASSEMBLY - REAR COMBINATION LIGHT ASSEMBLY RH)

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

OK:

The connector is securely connected.

*a

Front view of wire harness connector

(to Rear Combination Light Assembly RH)

(b) Disconnect the A100 skid control ECU (brake actuator assembly) connector.

(c) Disconnect the O104 rear combination light assembly LH connector.

(d) Disconnect the O103 rear combination light assembly RH connector.

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

OK:

No deformation or corrosion.

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

Standard Voltage:

Tester Connection

Condition

Specified Condition

O103-2 (STP) - Body ground

Brake pedal depressed

11 to 14 V
OK

Refer to "Left or right stop light does not illuminate" of problem symptoms table.

Click here GO TO LIGHTING SYSTEM (REAR COMBINATION LIGHT ASSEMBLY RH (STOP LIGHT CIRCUIT))

NG

12.

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

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

OK:

The connector is securely connected.

*a

Front view of wire harness connector

(to Center Stop Light Set)

(b) Disconnect the A100 skid control ECU (brake actuator assembly) connector.

(c) Disconnect the O104 rear combination light assembly LH connector.

(d) Disconnect the O103 rear combination light assembly RH connector.

(e) Disconnect the O111 center stop light set connector.

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

OK:

No deformation or corrosion.

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

Standard Voltage:

Tester Connection

Condition

Specified Condition

O111-1 (B) - Body ground

Brake pedal depressed

11 to 14 V
OK

REPLACE CENTER STOP LIGHT SET

NG

13.

CHECK HARNESS AND CONNECTOR (STOP LIGHT SWITCH ASSEMBLY - REAR COMBINATION LIGHT ASSEMBLY LH)

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

OK:

The connector is securely connected.

(b) Disconnect the A100 skid control ECU (brake actuator assembly) connector.

(c) Disconnect the O104 rear combination light assembly LH connector.

(d) Disconnect the O103 rear combination light assembly RH connector.

(e) Disconnect the O111 center stop light set connector.

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

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

OK:

No deformation or corrosion.

(h) Measure the resistance according to the value(s) in the table below.

Standard Resistance:

Tester Connection

Condition

Specified Condition

A53-1 (OUT) - O104-2 (STP)

Always

Below 1 Ω

A53-1 (OUT) or O104-2 (STP) - Body ground

Always

10 kΩ or higher
OK

REPLACE STOP LIGHT SWITCH ASSEMBLY

NG

REPAIR OR REPLACE HARNESS OR CONNECTOR