BRAKE CONTROL / DYNAMIC CONTROL SYSTEMS ELECTRONICALLY CONTROLLED BRAKE SYSTEM(w/ VSC OFF Switch) C13807F Stop Lamp Relay Actuator Stuck Off
DESCRIPTION
Refer to DTC C13807E.
| DTC No. | Detection Item | DTC Detection Condition | Trouble Area |
|---|---|---|---|
| C13807F | Stop Lamp Relay Actuator Stuck Off | ·
w/ STOP LP Relay (Stop Light Relay) When the voltage at the +BS terminal is between 10 V or more and the STOP LP relay (stop light relay) drive output (STPO) is on, a signal is not input to the STP2 terminal for 5 seconds or more. ·
w/ Rear Combination Light (for LED Type) When the voltage at the +BS terminal is between 10 V or more and the stop light relay (stop light switch assembly) drive output (STPO) is on, a signal is not input to the STP2 terminal for 5 seconds or more. |
·
Wire harness or connector ·
STOP LP relay (stop light relay)*1 ·
Stop light relay (stop light switch assembly)*2 ·
Skid control ECU (brake actuator assembly) |
*1: w/ Rear Combination Light (for Bulb Type)
*2: w/ Rear Combination Light (for LED Type)
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.
- HINT:
-
When DTC P057111, P057112 and/or P057113 are output together with DTC C13807F, inspect and repair the trouble areas indicated by DTC P057111, P057112 and/or P057113 first.
-
P057111: Click hereBrake>BRAKE CONTROL / DYNAMIC CONTROL SYSTEMS>ELECTRONICALLY CONTROLLED BRAKE SYSTEM (w/ VSC OFF Switch)>P057111202107,999999,_54,_078667,_0385049,RM100000001XSNN,P057111
-
P057112: Click hereBrake>BRAKE CONTROL / DYNAMIC CONTROL SYSTEMS>ELECTRONICALLY CONTROLLED BRAKE SYSTEM (w/ VSC OFF Switch)>P057112202107,999999,_54,_078667,_0385049,RM100000001XVV6,P057112
-
P057113: Click hereBrake>BRAKE CONTROL / DYNAMIC CONTROL SYSTEMS>ELECTRONICALLY CONTROLLED BRAKE SYSTEM (w/ VSC OFF Switch)>P057113201906,999999,_54,_078667,_0385049,RM100000001IQ9Z,P057113
PROCEDURE
Check the vehicle specification.
- Result:
Result Proceed to w/ Rear Combination Light (for Bulb Type) A w/ Rear Combination Light (for LED Type) B
A
B
Check that the stop lights come on when the brake pedal is depressed.
- OK:
The stop lights illuminate.
- Result:
Proceed to OK NG
OK
NG
Connect the GTS to the DLC3.
Turn the ignition switch to ON.
Enter the following menus: Chassis / Brake / Active Test.
- Chassis > Brake > Active Test
-
Tester Display Measurement Item Control Range Restrict Condition Diagnostic Note Stop Lamp Relay STOP LP relay (stop light relay) OFF / ON Vehicle condition: Vehicle stopped
- HINT:
-
To protect this actuator and solenoid, this test will only last 5 seconds.
-
- Chassis > Brake > Active Test
-
Tester Display Stop Lamp Relay - 50004 435 27
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.
- Result:
Proceed to OK NG
OK
NG
Make sure that there is no looseness at the locking part and the connecting part of the connectors.
- OK:
The connector is securely connected.
Disconnect the A28 skid control ECU (brake actuator assembly) connector.
Remove the STOP LP relay (stop light relay) from the No. 1 engine room relay block and No. 1 junction block.
Check both the connector case and the terminals for deformation and corrosion.
- OK:
No deformation or corrosion.
Measure the resistance according to the value(s) in the table below.
- Standard Resistance:
Tester Connection Condition Specified Condition 3 - A28-24 (STP2) Always Below 1 Ω
- Result:
Proceed to OK NG
OK
NG
Make sure that there is no looseness at the locking part and the connecting part of the connectors.
- OK:
The connector is securely connected.
Disconnect the A28 skid control ECU (brake actuator assembly) connector.
Remove the STOP LP relay (stop light relay) from the No. 1 engine room relay block and No. 1 junction block.
Check both the connector case and the terminals for deformation and corrosion.
- OK:
No deformation or corrosion.
Measure the resistance according to the value(s) in the table below.
- Standard Resistance:
Tester Connection Condition Specified Condition 1 - A28-3 (STPO) Always Below 1 Ω
- Result:
Proceed to OK NG
OK
NG
Make sure that there is no looseness at the locking part and the connecting part of the connectors.
- OK:
The connector is securely connected.
Remove the STOP LP relay (stop light relay) from the No. 1 engine room relay block and No. 1 junction block.
Check both the connector case and the terminals for deformation and corrosion.
- OK:
No deformation or corrosion.
Measure the voltage according to the value(s) in the table below.
- Standard Voltage:
Tester Connection Condition Specified Condition 5 - Body ground Always 11 to 14 V 2 - Body ground Ignition switch ON 11 to 14 V
- Result:
Proceed to OK NG
OK
NG
Turn the ignition switch off.
Remove the STOP LP relay (stop light relay) from the No. 1 engine room relay block and No. 1 junction block.
Inspect the STOP LP relay (stop light relay).
- OK:
The STOP LP relay (stop light relay) is normal.
- Result:
Result OK NG
OK
NG
Make sure that there is no looseness at the locking part and the connecting part of the connectors.
- OK:
The connector is securely connected.
Disconnect the A28 skid control ECU (brake actuator assembly) connector.
Remove the STOP LP relay (stop light relay) from the No. 1 engine room relay block and No. 1 junction block.
Check both the connector case and the terminals for deformation and corrosion.
- OK:
No deformation or corrosion.
Measure the resistance according to the value(s) in the table below.
- Standard Resistance:
Tester Connection Condition Specified Condition 3 - A28-24 (STP2) Always Below 1 Ω
- Result:
Proceed to OK NG
OK
NG
Make sure that there is no looseness at the locking part and the connecting part of the connectors.
- OK:
The connector is securely connected.
Disconnect the M1 stop light switch assembly connector.
Remove the STOP LP relay (stop light relay) from the No. 1 engine room relay block and No. 1 junction block.
Check both the connector case and the terminals for deformation and corrosion.
- OK:
No deformation or corrosion.
Measure the resistance according to the value(s) in the table below.
- Standard Resistance:
Tester Connection Condition Specified Condition M1-1 (L) - 4 Always Below 1 Ω
- Result:
Proceed to OK NG
OK
NG
Turn the ignition switch off.
Remove the STOP LP relay (stop light relay) from the No. 1 engine room relay block and No. 1 junction block.
Inspect the STOP LP relay (stop light relay).
- OK:
The STOP LP relay (stop light relay) is normal.
- Result:
Result OK NG
OK
NG
Check that the stop lights come on when the brake pedal is depressed.
- OK:
The stop lights illuminate.
- Result:
Proceed to OK NG
OK
NG
Connect the GTS to the DLC3.
Turn the ignition switch to ON.
Enter the following menus: Chassis / Brake/EPB / Active Test.
- Chassis > Brake/EPB > Active Test
-
Tester Display Measurement Item Control Range Restrict Condition Diagnostic Note Stop Lamp Relay Stop light relay (stop light switch assembly) OFF / ON Vehicle condition: Vehicle stopped
- HINT:
-
To protect this actuator and solenoid, this test will only last 5 seconds.
-
- Chassis > Brake/EPB > Active Test
-
Tester Display Stop Lamp Relay - 50004 435 27
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.
- Result:
Proceed to OK NG
OK
NG
| *a | Front view of wire harness connector
(to Skid Control ECU (Brake Actuator Assembly)) |
Make sure that there is no looseness at the locking part and the connecting part of the connectors.
- OK:
The connector is securely connected.
Disconnect the A28 skid control ECU (brake actuator assembly) connector.
Check both the connector case and the terminals for deformation and corrosion.
- OK:
No deformation or corrosion.
Measure the voltage according to the value(s) in the table below.
- Standard Voltage:
Tester Connection Condition Specified Condition A28-24 (STP2) - Body ground Brake pedal depressed 11 to 14 V
- Result:
Proceed to OK NG
OK
NG
| *a | Component with harness connected
(Stop Light Switch Assembly) |
Make sure that there is no looseness at the locking part and the connecting part of the connector.
- OK:
The connector is securely connected.
Measure the voltage according to the value(s) in the table below.
- Standard Voltage:
Tester Connection Condition Specified Condition M2-4 (ACC) - Body ground Always 11 to 14 V
- Result:
Proceed to OK NG
OK
NG
| *a | Front view of wire harness connector
(to Skid Control ECU (Brake Actuator Assembly)) |
Make sure that there is no looseness at the locking part and the connecting part of the connectors.
- OK:
The connector is securely connected.
Disconnect the A28 skid control ECU (brake actuator assembly) connector.
Check both the connector case and the terminals for deformation and corrosion.
- OK:
No deformation or corrosion.
Measure the voltage according to the value(s) in the table below.
- Standard Voltage:
Tester Connection Condition Specified Condition A28-3 (STPO) - Body ground Always 11 to 14 V
- Result:
Proceed to OK NG
OK
NG
Make sure that there is no looseness at the locking part and the connecting part of the connectors.
- OK:
The connector is securely connected.
Disconnect the A28 skid control ECU (brake actuator assembly) connector.
Check both the connector case and the terminals for deformation and corrosion.
- OK:
No deformation or corrosion.
Check that the stop lights come on when the brake pedal is depressed.
- OK:
The stop lights illuminate.
- Result:
Proceed to OK NG
OK
NG
| *a | Front view of wire harness connector
(to Rear Combination Light Assembly LH) |
Make sure that there is no looseness at the locking part and the connecting part of the connectors.
- OK:
The connector is securely connected.
Disconnect the A28 skid control ECU (brake actuator assembly) connector.
Disconnect the e4 rear combination light assembly LH connector.
Check both the connector case and the terminals for deformation and corrosion.
- OK:
No deformation or corrosion.
Measure the voltage according to the value(s) in the table below.
- Standard Voltage:
Tester Connection Condition Specified Condition e4-1 (STP) - Body ground Brake pedal depressed 11 to 14 V
- Result:
Proceed to OK NG
OK
Refer to "Left or right stop light does not illuminate" of problem symptoms table.
w/o Headlight ECU: Click hereVehicle Exterior>LIGHTING (EXT)>LIGHTING SYSTEM (w/o Headlight ECU)>PROBLEM SYMPTOMS TABLE201906,999999,_59,_079256,_0384398,RM100000001IWSQ,
w/ Headlight ECU: Click hereVehicle Exterior>LIGHTING (EXT)>LIGHTING SYSTEM (w/ Headlight ECU)>PROBLEM SYMPTOMS TABLE201906,999999,_59,_079256,_0396321,RM100000001IGX9,
NG
| *a | Front view of wire harness connector
(to Rear Combination Light Assembly RH) |
Make sure that there is no looseness at the locking part and the connecting part of the connectors.
- OK:
The connector is securely connected.
Disconnect the A28 skid control ECU (brake actuator assembly) connector.
Disconnect the e4 rear combination light assembly LH connector.
Disconnect the g2 rear combination light assembly RH connector.
Check both the connector case and the terminals for deformation and corrosion.
- OK:
No deformation or corrosion.
Measure the voltage according to the value(s) in the table below.
- Standard Voltage:
Tester Connection Condition Specified Condition g2-1 (STP) - Body ground Brake pedal depressed 11 to 14 V
- Result:
Proceed to OK NG
OK
Refer to "Left or right stop light does not illuminate" of problem symptoms table.
w/o Headlight ECU: Click hereVehicle Exterior>LIGHTING (EXT)>LIGHTING SYSTEM (w/o Headlight ECU)>PROBLEM SYMPTOMS TABLE201906,999999,_59,_079256,_0384398,RM100000001IWSQ,
w/ Headlight ECU: Click hereVehicle Exterior>LIGHTING (EXT)>LIGHTING SYSTEM (w/ Headlight ECU)>PROBLEM SYMPTOMS TABLE201906,999999,_59,_079256,_0396321,RM100000001IGX9,
NG
| *A | for 8LED |
| *B | for 6LED |
| *a | Front view of wire harness connector
(to Center Stop Light Cord Assembly) |
Make sure that there is no looseness at the locking part and the connecting part of the connectors.
- OK:
The connector is securely connected.
Disconnect the A28 skid control ECU (brake actuator assembly) connector.
Disconnect the e4 rear combination light assembly LH connector.
Disconnect the g2 rear combination light assembly RH connector.
Disconnect the k1*1 or k4*2 center stop light assembly connector.
*1: for 8LED
*2: for 6LED
Check both the connector case and the terminals for deformation and corrosion.
- OK:
No deformation or corrosion.
Measure the voltage according to the value(s) in the table below.
- Standard Voltage:
for 8LED Tester Connection Condition Specified Condition k1-1 (B) - Body ground Brake pedal depressed 11 to 14 V
| Tester Connection | Condition | Specified Condition |
|---|---|---|
| k4-1 (B) - Body ground | Brake pedal depressed | 11 to 14 V |
- Result:
Proceed to OK NG
OK
Refer to "Left or right stop light does not illuminate" of problem symptoms table.
w/o Headlight ECU: Click hereVehicle Exterior>LIGHTING (EXT)>LIGHTING SYSTEM (w/o Headlight ECU)>PROBLEM SYMPTOMS TABLE201906,999999,_59,_079256,_0384398,RM100000001IWSQ,
w/ Headlight ECU: Click hereVehicle Exterior>LIGHTING (EXT)>LIGHTING SYSTEM (w/ Headlight ECU)>PROBLEM SYMPTOMS TABLE201906,999999,_59,_079256,_0396321,RM100000001IGX9,
NG
Make sure that there is no looseness at the locking part and the connecting part of the connectors.
- OK:
The connector is securely connected.
Disconnect the A28 skid control ECU (brake actuator assembly) connector.
Disconnect the M2 stop light switch assembly connector.
Disconnect the e4 rear combination light assembly LH connector.
Disconnect the g2 rear combination light assembly RH connector.
Disconnect the k1*1 or k4*2 center stop light assembly connector.
*1: for 8LED
*2: for 6LED
Check both the connector case and the terminals for deformation and corrosion.
- OK:
No deformation or corrosion.
Measure the resistance according to the value(s) in the table below.
- Standard Resistance:
Tester Connection Condition Specified Condition M2-1 (OUT) - e4-1 (STP) Always Below 1 Ω M2-1 (OUT) or e4-1 (STP) - Body ground Always 10 kΩ or higher
- Result:
Proceed to OK NG
OK
NG