RM36D0EC _54 Brake _083077 BRAKE CONTROL / DYNAMIC CONTROL SYSTEMS _0402316 ELECTRONICALLY CONTROLLED BRAKE SYSTEM(for Gasoline Model) C

BRAKE CONTROL / DYNAMIC CONTROL SYSTEMS  ELECTRONICALLY CONTROLLED BRAKE SYSTEM(for Gasoline Model)  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.*1

·

Secondary collision brake is operating.*1

·

Brake hold is operating.

·

The parking brake is engaged while the vehicle is being driven.

·

Downhill assist control is operating.*2


*1: w/ Pre-collision System

*2: w/ Downhill Assist Control

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)

·

Stop light LED

·

Rear combination light socket and wire LH

·

Rear combination light socket and wire RH

·

Center stop light assembly

·

Center stop light cord assembly



WIRING DIAGRAM

C408008E03
2.552,0.104 3.427,0.302 0.875,0.198 10 false to Each ECU 1.146,0.5 2.979,0.698 1.833,0.198 10 false from Battery 0.979,1.865 1.594,2.063 0.615,0.198 10 false STOP 5.51,4.063 7.042,4.427 1.531,0.365 10 false Skid Control ECU (Brake Actuator Assembly) 1.635,3.74 3.427,3.99 1.792,0.25 10 false Stop Light Switch Assembly 0.083,8.469 1.979,8.729 1.896,0.26 10 false Center Stop Light Assembly 2.219,5.063 3.688,5.406 1.469,0.344 10 false Rear Combination Light Socket and Wire LH 5.5,3.917 5.958,4.115 0.458,0.198 10 false A39 1.667,3.563 2.125,3.76 0.458,0.198 10 false A40 3.49,4.729 3.802,4.927 0.313,0.198 10 false N18 3.521,8.094 3.833,8.292 0.313,0.198 10 false g1 3.479,6.427 3.792,6.625 0.313,0.198 10 false M14 5.688,2.156 6.146,2.354 0.458,0.198 10 false STPO 5.708,1.25 6.167,1.448 0.458,0.198 10 false STP 5.677,2.948 6.135,3.146 0.458,0.198 10 false STP2 2.917,2.938 3.375,3.135 0.458,0.198 10 false OUT 2.927,2.177 3.385,2.375 0.458,0.198 10 false ACC 3.094,1.25 3.219,1.417 0.125,0.167 10 false L 1.76,2.917 2.219,3.115 0.458,0.198 10 false GND 1.802,1.583 1.969,1.75 0.167,0.167 10 false B 1.563,1.573 1.719,1.771 0.156,0.198 10 false 7 1.521,2.927 1.677,3.125 0.156,0.198 10 false 2 3.344,2.948 3.5,3.146 0.156,0.198 10 false 1 3.354,2.167 3.51,2.365 0.156,0.198 10 false 4 3.313,1.26 3.469,1.458 0.156,0.198 10 false 3 5.385,1.24 5.698,1.438 0.313,0.198 10 false 41 5.344,2.146 5.656,2.344 0.313,0.198 10 false 33 5.385,2.948 5.698,3.146 0.313,0.198 10 false 43 3.563,4.146 3.813,4.354 0.25,0.208 10 false 2 3.563,6.24 3.719,6.438 0.156,0.198 10 false 3 3.563,7.531 3.792,7.75 0.229,0.219 10 false 2 3.563,7.938 3.719,8.135 0.156,0.198 10 false 1 3.573,5.813 3.823,6.073 0.25,0.26 10 false 2 3.552,4.552 3.708,4.75 0.156,0.198 10 false 3 3.25,4.625 3.406,4.823 0.156,0.198 10 false E 3.271,8.021 3.427,8.219 0.156,0.198 10 false E 3.26,6.333 3.417,6.531 0.156,0.198 10 false E 3.26,5.917 3.583,6.167 0.323,0.25 10 false B 3.25,4.24 3.51,4.49 0.26,0.25 10 false B 3.125,7.594 3.521,7.833 0.396,0.24 10 false STP 0.677,4.51 1.375,4.708 0.698,0.198 10 false Stop Light 3.479,4.344 3.792,4.542 0.313,0.198 10 false N18 3.469,6.042 3.781,6.24 0.313,0.198 10 false M14 3.531,7.708 3.844,7.906 0.313,0.198 10 false g1 0.219,5.104 1.604,5.448 1.385,0.344 10 false Stop Light LED 0.208,6.792 1.521,7.167 1.313,0.375 10 false Stop Light LED 2.24,6.771 3.708,7.115 1.469,0.344 10 false Rear Combination Light Socket and Wire RH 2.052,8.458 4.208,8.667 2.156,0.208 10 false Center Stop Light Cord Assembly 0.646,6.198 1.344,6.396 0.698,0.198 10 false Stop Light 0.646,7.917 1.344,8.115 0.698,0.198 10 false Stop Light

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 hereBrake>BRAKE CONTROL / DYNAMIC CONTROL SYSTEMS>ELECTRONICALLY CONTROLLED BRAKE SYSTEM (for Gasoline Model)>UTILITY



HINT:

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

P057112: Click hereBrake>BRAKE CONTROL / DYNAMIC CONTROL SYSTEMS>ELECTRONICALLY CONTROLLED BRAKE SYSTEM (for Gasoline Model)>P057112

P057113: Click hereBrake>BRAKE CONTROL / DYNAMIC CONTROL SYSTEMS>ELECTRONICALLY CONTROLLED BRAKE SYSTEM (for Gasoline Model)>P057113


PROCEDURE

1.CHECK STOP LIGHT ILLUMINATION STATUS
a.

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


Result:
Result Proceed to
The stop lights are illuminated. A
The stop lights are not illuminated. B



A

2.CHECK HARNESS AND CONNECTOR (STOP LIGHT CONTROL RELAY CIRCUIT)

B

7.CHECK STOP LIGHT OPERATION
2.CHECK HARNESS AND CONNECTOR (STOP LIGHT CONTROL RELAY CIRCUIT)
a.
C401043C22
0.375,0.667 0.813,0.927 0.438,0.26 2.021,1.688 1.708,1.063 true 0.167,0.177 0.479,0.333 0.313,0.156 10 false *a 2.021,1.719 2.406,1.906 0.385,0.188 10 false ACC 0.448,0.729 0.938,1.063 0.49,0.333 10 false A40
*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.



b.

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

Standard Voltage:
Tester Connection Condition Specified Condition
A40-4 (ACC) - Body ground Always 11 to 14 V



Result:
Proceed to
OK
NG



OK

3.CHECK STOP LIGHT ILLUMINATION STATUS

NG

5.CHECK HARNESS AND CONNECTOR (STOP LIGHT CONTROL RELAY CIRCUIT)
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 A40 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:
Result Proceed to
The stop lights are illuminated. A
The stop lights are not illuminated. B



A

4.CHECK STOP LIGHT ILLUMINATION STATUS

B

REPLACE STOP LIGHT SWITCH ASSEMBLY

Click hereVehicle Exterior>LIGHTING (EXT)>STOP LIGHT SWITCH>REMOVAL


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 A39 skid control ECU (brake actuator assembly) connector.


c.

Disconnect the A40 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:
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

Click hereBrake>BRAKE CONTROL / DYNAMIC CONTROL SYSTEMS>BRAKE ACTUATOR (for Gasoline Model)>REMOVAL


5.CHECK HARNESS AND CONNECTOR (STOP LIGHT CONTROL RELAY CIRCUIT)
a.
C401043C22
0.375,0.667 0.813,0.927 0.438,0.26 2.021,1.688 1.708,1.063 true 0.167,0.177 0.479,0.333 0.313,0.156 10 false *a 2.021,1.719 2.406,1.906 0.385,0.188 10 false ACC 0.448,0.729 0.938,1.063 0.49,0.333 10 false A40
*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 connectors.

OK:

The connector is securely connected.



b.

Disconnect the A39 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
A40-4 (ACC) - Body ground Always 11 to 14 V



Result:
Proceed to
OK
NG



OK

REPLACE BRAKE ACTUATOR ASSEMBLY

Click hereBrake>BRAKE CONTROL / DYNAMIC CONTROL SYSTEMS>BRAKE ACTUATOR (for Gasoline Model)>REMOVAL


NG

6.CHECK HARNESS AND CONNECTOR (STOP LIGHT SWITCH ASSEMBLY - BRAKE ACTUATOR ASSEMBLY)
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 A39 skid control ECU (brake actuator assembly) connector.


c.

Disconnect the A40 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 resistance according to the value(s) in the table below.

Standard Resistance:
Tester Connection Condition Specified Condition
A40-4 (ACC) or A39-33 (STPO) - Body ground and other terminals Always 10 kΩ or higher



Result:
Proceed to
OK
NG



OK

REPLACE STOP LIGHT SWITCH ASSEMBLY

Click hereVehicle Exterior>LIGHTING (EXT)>STOP LIGHT SWITCH>REMOVAL


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.



Result:
Proceed to
OK
NG



OK

8.CHECK HARNESS AND CONNECTOR (STOP LIGHT SIGNAL INPUT CIRCUIT)

NG

9.CHECK STOP LIGHT OPERATION
8.CHECK HARNESS AND CONNECTOR (STOP LIGHT SIGNAL INPUT CIRCUIT)
a.
C399487C44
0.344,0.229 0.729,0.479 0.385,0.25 2.333,0.917 2.583,0.333 true 0.104,0.094 0.417,0.25 0.313,0.156 10 false *a 0.417,0.281 0.875,0.479 0.458,0.198 10 false A39 2.469,0.198 2.854,0.438 0.385,0.24 10 false STP2
*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.



b.

Disconnect the A39 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
A39-43 (STP2) - Body ground Brake pedal depressed 11 to 14 V



Result:
Proceed to
OK
NG



OK

REPLACE BRAKE ACTUATOR ASSEMBLY

Click hereBrake>BRAKE CONTROL / DYNAMIC CONTROL SYSTEMS>BRAKE ACTUATOR (for Gasoline Model)>REMOVAL


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 A39 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.



Result:
Proceed to
OK
NG



OK

REPLACE BRAKE ACTUATOR ASSEMBLY

Click hereBrake>BRAKE CONTROL / DYNAMIC CONTROL SYSTEMS>BRAKE ACTUATOR (for Gasoline Model)>REMOVAL


NG

10.CHECK HARNESS AND CONNECTOR (STOP LIGHT SWITCH ASSEMBLY - REAR COMBINATION LIGHT SOCKET AND WIRE LH)
10.CHECK HARNESS AND CONNECTOR (STOP LIGHT SWITCH ASSEMBLY - REAR COMBINATION LIGHT SOCKET AND WIRE LH)
a.
C408617C01
0.323,0.438 0.719,0.667 0.396,0.229 1.552,1.396 0.885,1.417 true 0.396,0.479 0.74,0.677 0.344,0.198 10 false N18 0.167,0.167 0.479,0.365 0.313,0.198 10 false *a 0.708,1.344 1.167,1.542 0.458,0.198 10 false B
*a Front view of wire harness connector
(to Rear Combination Light Socket and Wire 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.



b.

Disconnect the A39 skid control ECU (brake actuator assembly) connector.


c.

Disconnect the N18 rear combination light socket and wire 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
N18-2 (B) - Body ground Brake pedal depressed 11 to 14 V



Result:
Proceed to
OK
NG



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.

for SFTM Made: Click hereVehicle Exterior>LIGHTING (EXT)>LIGHTING SYSTEM (for SFTM Made)>PROBLEM SYMPTOMS TABLE

for GTMC Made: Click hereVehicle Exterior>LIGHTING (EXT)>LIGHTING SYSTEM (for GTMC Made)>PROBLEM SYMPTOMS TABLE


NG

11.CHECK HARNESS AND CONNECTOR (STOP LIGHT SWITCH ASSEMBLY - REAR COMBINATION LIGHT SOCKET AND WIRE RH)
11.CHECK HARNESS AND CONNECTOR (STOP LIGHT SWITCH ASSEMBLY - REAR COMBINATION LIGHT SOCKET AND WIRE RH)
a.
C408617C02
0.323,0.438 0.719,0.667 0.396,0.229 1.552,1.385 0.771,1.406 true 0.385,0.469 0.74,0.698 0.354,0.229 10 false M14 0.167,0.167 0.479,0.365 0.313,0.198 10 false *a 0.594,1.323 1.052,1.521 0.458,0.198 10 false B
*a Front view of wire harness connector
(to Rear Combination Light Socket and Wire 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.



b.

Disconnect the A39 skid control ECU (brake actuator assembly) connector.


c.

Disconnect the N18 rear combination light socket and wire LH connector.


d.

Disconnect the M14 rear combination light socket and wire 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
M14-2 (B) - Body ground Brake pedal depressed 11 to 14 V



Result:
Proceed to
OK
NG



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.

for SFTM Made: Click hereVehicle Exterior>LIGHTING (EXT)>LIGHTING SYSTEM (for SFTM Made)>PROBLEM SYMPTOMS TABLE

for GTMC Made: Click hereVehicle Exterior>LIGHTING (EXT)>LIGHTING SYSTEM (for GTMC Made)>PROBLEM SYMPTOMS TABLE


NG

12.CHECK HARNESS AND CONNECTOR (STOP LIGHT SWITCH ASSEMBLY - CENTER STOP LIGHT CORD ASSEMBLY)
12.CHECK HARNESS AND CONNECTOR (STOP LIGHT SWITCH ASSEMBLY - CENTER STOP LIGHT CORD ASSEMBLY)
a.
C421049C01
0.344,0.302 0.74,0.563 0.396,0.26 2.792,1.813 2.542,1.813 2.542,1.813 2.375,1.229 true 0.083,0.052 0.396,0.25 0.313,0.198 10 false *a 0.479,0.344 0.792,0.542 0.313,0.198 10 false g1 2.844,1.74 3.24,1.938 0.396,0.198 10 false STP
*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.



b.

Disconnect the A39 skid control ECU (brake actuator assembly) connector.


c.

Disconnect the N18 rear combination light socket and wire LH connector.


d.

Disconnect the M14 rear combination light socket and wire RH connector.


e.

Disconnect the g1 center stop light cord assembly 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
g1-2 (STP) - Body ground Brake pedal depressed 11 to 14 V



Result:
Proceed to
OK
NG



OK

GO TO LIGHTING SYSTEM (CENTER STOP LIGHT ASSEMBLY)

Refer to "High mounted stop light does not illuminate" of problem symptoms table.

for SFTM Made: Click hereVehicle Exterior>LIGHTING (EXT)>LIGHTING SYSTEM (for SFTM Made)>PROBLEM SYMPTOMS TABLE

for GTMC Made: Click hereVehicle Exterior>LIGHTING (EXT)>LIGHTING SYSTEM (for GTMC Made)>PROBLEM SYMPTOMS TABLE


NG

13.CHECK HARNESS AND CONNECTOR (STOP LIGHT SWITCH ASSEMBLY - REAR COMBINATION LIGHT ASSEMBLY LH)
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 A39 skid control ECU (brake actuator assembly) connector.


c.

Disconnect the A40 stop light switch assembly connector.


d.

Disconnect the N18 rear combination light socket and wire LH connector.


e.

Disconnect the M14 rear combination light socket and wire RH connector.


f.

Disconnect the g1 center stop light cord 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
A40-1 (OUT) - N18-2 (B) Always Below 1 Ω
A40-1 (OUT) or N18-2 (B) - Body ground Always 10 kΩ or higher



Result:
Proceed to
OK
NG



OK

REPLACE STOP LIGHT SWITCH ASSEMBLY

Click hereVehicle Exterior>LIGHTING (EXT)>STOP LIGHT SWITCH>REMOVAL


NG

REPAIR OR REPLACE HARNESS OR CONNECTOR