| Last Modified: 05-13-2024 | 6.11:8.1.0 | Doc ID: RM1000000028T1F |
| Model Year Start: 2023 | Model: Corolla | Prod Date Range: [11/2022 - ] |
| Title: BRAKE CONTROL / DYNAMIC CONTROL SYSTEMS: ELECTRONICALLY CONTROLLED BRAKE SYSTEM (for HV Model): C13807F; Stop Lamp Relay Actuator Stuck Off; 2023 - 2025 MY Corolla Corolla HV [11/2022 - ] | ||
|
DTC |
C13807F |
Stop Lamp Relay Actuator Stuck Off |
DESCRIPTION
Refer to DTC C13807E.
Click here
![2023 - 2025 MY Corolla Corolla HV [11/2022 - ]; BRAKE CONTROL / DYNAMIC CONTROL SYSTEMS: ELECTRONICALLY CONTROLLED BRAKE SYSTEM (for HV Model): C13807E; Stop Lamp Relay Actuator Stuck On](/t3Portal/stylegraphics/info.gif)
|
DTC No. |
Detection Item |
DTC Detection Condition |
Trouble Area |
MIL |
DTC Output from |
Note |
|---|---|---|---|---|---|---|
|
C13807F |
Stop Lamp Relay Actuator Stuck Off |
When the voltage at the +BS terminal is 10 V or more and the stop light control relay (stop light switch assembly) drive output (STPO) is on, a signal is not input to the STP2 terminal for 5 seconds or more. |
|
Does not come on |
Brake/EPB |
Output ECU: Skid control ECU (brake actuator assembly) |
WIRING DIAGRAM
Refer to DTC C13807E.
Click here
CAUTION / NOTICE / HINT
NOTICE:
Inspect the fuses for circuits related to this system before performing the following procedure.
HINT:
When DTC C117B62, P057112 and/or P057113 are output together with DTC C13807F, inspect and repair the trouble areas indicated by DTC C117B62, P057112 and/or P057113 first.
C117B62: Click here
P057112: Click here
P057113: Click here
PROCEDURE
|
1. |
CHECK STOP LIGHT OPERATION |
(a) Check that the stop lights come on when the brake pedal is depressed.
OK:
The stop lights illuminate.
| NG |
|
|
|
2. |
PERFORM ACTIVE TEST USING GTS (STOP LAMP RELAY) |
(a) Operate the GTS to perform the Active Test.
Chassis > Brake/EPB > Active Test
|
Tester Display |
Measurement Item |
Control Range |
Restrict Condition |
Diagnostic Note |
|---|---|---|---|---|
|
Stop Lamp Relay |
Stop light control relay (Stop light switch assembly) |
Relay OFF / ON |
Vehicle condition: Vehicle stopped HINT: To protect this Actuator and Solenoid, this test will only last 5 seconds. |
With the brake pedal released, check that the stop lights illuminate and the value of Stop Light Relay on the GTS changes to ON when Stop Lamp Relay is ON |
Chassis > Brake/EPB > Active Test
|
Tester Display |
|---|
|
Stop Lamp Relay |
(b) According to the display on the GTS, perform the Active Test and check the operation of the stop lights.
OK:
Stop lights turn on in accordance with the Active Test.
| NG |
|
|
|
3. |
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. |
|
(b) Disconnect the A51 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 |
|---|---|---|
|
A51-43 (STP2) - Body ground |
Brake pedal depressed |
11 to 14 V |
| OK |
|
| NG |
|
REPAIR OR REPLACE HARNESS OR CONNECTOR |
|
4. |
INSPECT STOP LIGHT SWITCH ASSEMBLY (ACC TERMINAL VOLTAGE) |
|
(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) 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 |
|
|
|
5. |
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 A51 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 |
|---|---|---|
|
A51-27 (STPO) - Body ground |
Always |
11 to 14 V |
| OK |
|
| NG |
|
REPAIR OR REPLACE HARNESS OR CONNECTOR |
|
6. |
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 A51 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 |
|
|
|
7. |
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 A51 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 |
|
GO TO LIGHTING SYSTEM (REAR COMBINATION LIGHT ASSEMBLY LH (STOP LIGHT CIRCUIT)) Refer to "Left or right stop light does not illuminate" of problem symptoms table. Click here
|
|
|
8. |
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. |
|
(b) Disconnect the A51 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 |
|
GO TO LIGHTING SYSTEM (REAR COMBINATION LIGHT ASSEMBLY RH (STOP LIGHT CIRCUIT)) Refer to "Left or right stop light does not illuminate" of problem symptoms table. Click here
|
|
|
9. |
CHECK HARNESS AND CONNECTOR (STOP LIGHT SWITCH ASSEMBLY - CENTER STOP LIGHT SET) |
|
(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 A51 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 |
|
|
|
10. |
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.
(b) Disconnect the A51 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) - O103-2 (STP) |
Always |
Below 1 Ω |
|
A53-1 (OUT) or O103-2 (STP) - Body ground |
Always |
10 kΩ or higher |
| OK |
|
| NG |
|
REPAIR OR REPLACE HARNESS OR CONNECTOR |
|
|