RM35X0E _54 Brake _078667 BRAKE CONTROL / DYNAMIC CONTROL SYSTEMS _0385049 ELECTRONICALLY CONTROLLED BRAKE SYSTEM(w/ VSC OFF Switch) C

BRAKE CONTROL / DYNAMIC CONTROL SYSTEMS  ELECTRONICALLY CONTROLLED BRAKE SYSTEM(w/ VSC OFF Switch)  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

·

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

·

Trailer sway control is operating.*2


*1: w/ Pre-collision System

*2: w/ Trailer Sway Control

DTC No. Detection Item DTC Detection Condition Trouble Area
C13807E Stop Lamp Relay Actuator Stuck On
·

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 off, the signal at the STP2 terminal is different from the input signal at the STP 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 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 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

C413715E03
2.99,0.708 4.677,0.906 1.688,0.198 10 false to Each ECU 0.854,2.438 2.688,2.656 1.833,0.219 10 false Stop Light Switch Assembly 5.198,4.354 6.729,4.76 1.531,0.406 10 false Skid Control ECU (Brake Actuator Assembly) 2.531,4.927 4.219,5.125 1.688,0.198 10 false from IG Circuit 2.531,3.958 4.354,4.188 1.823,0.229 10 false STOP LP (Stop Light Relay) 1.813,5.875 3.5,6.073 1.688,0.198 10 false from Battery 1.333,5.104 3.021,5.302 1.688,0.198 10 false IG2 NO. 1 0.833,6.063 2.521,6.26 1.688,0.198 10 false STOP 5.563,1.833 5.958,2.042 0.396,0.208 10 false STP 5.563,2.677 5.958,2.885 0.396,0.208 10 false STP2 5.563,3.417 5.958,3.625 0.396,0.208 10 false STPO 5.208,4.177 5.604,4.385 0.396,0.208 10 false A28 0.865,2.281 1.26,2.49 0.396,0.208 10 false M1 5.323,1.833 5.635,2.031 0.313,0.198 10 false 9 5.302,2.688 5.615,2.885 0.313,0.198 10 false 24 5.354,3.427 5.667,3.625 0.313,0.198 10 false 3 1.052,1.844 1.365,2.042 0.313,0.198 10 false 2 2.365,1.844 2.677,2.042 0.313,0.198 10 false 1 2.729,2.688 3.042,2.885 0.313,0.198 10 false 5 3.406,2.198 3.719,2.396 0.313,0.198 10 false 4 3.917,2.698 4.229,2.896 0.313,0.198 10 false 3 2.729,3.406 3.042,3.604 0.313,0.198 10 false 2 3.917,3.417 4.229,3.615 0.313,0.198 10 false 1 2.656,6.802 4.344,7 1.688,0.198 10 false to Stop Light Circuit 2.135,1.823 2.448,2.021 0.313,0.198 10 false L 1.26,1.823 1.573,2.021 0.313,0.198 10 false B 0.115,0.104 3.302,0.333 3.188,0.229 12 false w/ Rear Combination Light (for Bulb Type):

C418256E02
0.146,0.125 3.365,0.427 3.219,0.302 12 false w/ Rear Combination Light (for LED Type): 1.292,0.802 3.125,1 1.833,0.198 10 false from Battery 3.365,0.75 5.198,0.948 1.833,0.198 10 false to Each ECU 1.104,1.927 1.854,2.125 0.75,0.198 10 false STOP 1.813,3.635 2.563,3.833 0.75,0.198 10 false M2 1.802,3.802 3.688,4.031 1.885,0.229 10 false Stop Light Switch Assembly 5.677,1.344 6.427,1.542 0.75,0.198 10 false STP 5.667,2.25 6.417,2.448 0.75,0.198 10 false STPO 5.667,3.021 6.417,3.219 0.75,0.198 10 false STP2 1.698,1.656 1.927,1.844 0.229,0.188 10 false 7 1.875,1.656 2.104,1.844 0.229,0.188 10 false B 3.229,1.344 3.458,1.531 0.229,0.188 10 false L 3.438,1.344 3.667,1.531 0.229,0.188 10 false 3 5.5,1.344 5.729,1.531 0.229,0.188 10 false 9 5.49,2.25 5.719,2.438 0.229,0.188 10 false 3 5.417,3.01 5.729,3.271 0.313,0.26 10 false 24 3.458,2.24 3.688,2.427 0.229,0.188 10 false 4 3.479,3.01 3.708,3.198 0.229,0.188 10 false 1 3.073,2.24 3.427,2.49 0.354,0.25 10 false ACC 3.083,3.01 3.479,3.188 0.396,0.177 10 false OUT 1.885,3.01 2.313,3.208 0.427,0.198 10 false GND 1.677,3.01 1.906,3.198 0.229,0.188 10 false 2 5.458,3.948 6.208,4.146 0.75,0.198 10 false A28 5.448,4.156 7,4.531 1.552,0.375 10 false Skid Control ECU (Brake Actuator Assembly) 1.75,4.24 1.979,4.427 0.229,0.188 10 false 1 1.75,4.615 1.979,4.802 0.229,0.188 10 false 4 1.385,4.24 1.802,4.469 0.417,0.229 10 false STP 1.542,4.615 1.771,4.802 0.229,0.188 10 false E 0.104,5.073 0.333,5.26 0.229,0.188 10 false e4 0.083,5.219 2.688,5.479 2.604,0.26 10 false Rear Combination Light Assembly LH 1.76,5.813 1.99,6 0.229,0.188 10 false 1 1.771,6.219 2,6.406 0.229,0.188 10 false 4 1.344,5.792 1.76,6.021 0.417,0.229 10 false STP 1.521,6.198 1.75,6.385 0.229,0.188 10 false E 0.125,6.667 0.354,6.854 0.229,0.188 10 false g2 0.115,6.844 2.719,7.104 2.604,0.26 10 false Rear Combination Light Assembly RH 1.75,7.396 1.979,7.583 0.229,0.188 10 false 1 1.75,7.792 1.979,7.979 0.229,0.188 10 false 2 1.531,7.396 1.76,7.583 0.229,0.188 10 false B 1.521,7.792 1.75,7.979 0.229,0.188 10 false E 0.125,8.26 1.021,8.438 0.896,0.177 10 false k1*1, k4*2 0.104,8.406 1.885,8.604 1.781,0.198 10 false Center Stop Light Assembly 5.927,7.729 6.927,7.917 1,0.188 10 false *1: for 8LED 5.927,8.24 6.927,8.427 1,0.188 10 false *2: for 6LED

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 (w/ VSC OFF Switch)>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 hereBrake>BRAKE CONTROL / DYNAMIC CONTROL SYSTEMS>ELECTRONICALLY CONTROLLED BRAKE SYSTEM (w/ VSC OFF Switch)>P057111

P057112: Click hereBrake>BRAKE CONTROL / DYNAMIC CONTROL SYSTEMS>ELECTRONICALLY CONTROLLED BRAKE SYSTEM (w/ VSC OFF Switch)>P057112

P057113: Click hereBrake>BRAKE CONTROL / DYNAMIC CONTROL SYSTEMS>ELECTRONICALLY CONTROLLED BRAKE SYSTEM (w/ VSC OFF Switch)>P057113


PROCEDURE

1.CHECK VEHICLE
a.

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

2.CHECK STOP LIGHT ILLUMINATION STATUS

B

10.CHECK STOP LIGHT ILLUMINATION STATUS
2.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

3.CHECK HARNESS AND CONNECTOR (SPOT LIGHT RELAY - BRAKE ACTUATOR ASSEMBLY)

B

5.CHECK STOP LIGHT OPERATION
3.CHECK HARNESS AND CONNECTOR (SPOT LIGHT RELAY - 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 A28 skid control ECU (brake actuator assembly) connector.


c.

Remove the STOP LP relay (stop light relay) from the No. 1 engine room relay block and No. 1 junction block.


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
1 or A28-3 (STPO) - Body ground Always 10 kΩ or higher



Result:
Proceed to
OK
NG



OK

4.INSPECT STOP LIGHT RELAY

NG

REPAIR OR REPLACE HARNESS OR CONNECTOR

4.INSPECT STOP LIGHT RELAY
a.

Turn the ignition switch off.


b.

Remove the STOP LP relay (stop light relay) from the No. 1 engine room relay block and No. 1 junction block.


c.

Inspect the STOP LP relay (stop light relay).

Click hereBrake>BRAKE CONTROL / DYNAMIC CONTROL SYSTEMS>RELAY>ON-VEHICLE INSPECTION

OK:

The STOP LP relay (stop light relay) is normal.


Result:
Result
OK
NG




OK

REPLACE BRAKE ACTUATOR ASSEMBLY

Click hereBrake>BRAKE CONTROL / DYNAMIC CONTROL SYSTEMS>BRAKE ACTUATOR>REMOVAL


NG

REPLACE STOP LIGHT RELAY

5.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

6.CHECK HARNESS AND CONNECTOR (STOP LIGHT RELAY - BRAKE ACTUATOR ASSEMBLY)

NG

8.CHECK HARNESS AND CONNECTOR (STOP LIGHT RELAY - BRAKE ACTUATOR ASSEMBLY)
6.CHECK HARNESS AND CONNECTOR (STOP LIGHT RELAY - 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 A28 skid control ECU (brake actuator assembly) connector.


c.

Remove the STOP LP relay (stop light relay) from the No. 1 engine room relay block and No. 1 junction block.


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
3 - A28-24 (STP2) Always Below 1 Ω



Result:
Proceed to
OK
NG



OK

7.CHECK HARNESS AND CONNECTOR (STOP LIGHT RELAY - BRAKE ACTUATOR ASSEMBLY)

NG

REPAIR OR REPLACE HARNESS OR CONNECTOR

7.CHECK HARNESS AND CONNECTOR (STOP LIGHT RELAY - 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 A28 skid control ECU (brake actuator assembly) connector.


c.

Remove the STOP LP relay (stop light relay) from the No. 1 engine room relay block and No. 1 junction block.


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
4 - A28-9 (STP) Always Below 1 Ω



Result:
Proceed to
OK
NG



OK

REPLACE BRAKE ACTUATOR ASSEMBLY

Click hereBrake>BRAKE CONTROL / DYNAMIC CONTROL SYSTEMS>BRAKE ACTUATOR>REMOVAL


NG

REPAIR OR REPLACE HARNESS OR CONNECTOR

8.CHECK HARNESS AND CONNECTOR (STOP LIGHT RELAY - 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 A28 skid control ECU (brake actuator assembly) connector.


c.

Remove the STOP LP relay (stop light relay) from the No. 1 engine room relay block and No. 1 junction block.


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
3 - A28-24 (STP2) Always Below 1 Ω



Result:
Proceed to
OK
NG



OK

9.CHECK HARNESS AND CONNECTOR (STOP LIGHT SWITCH ASSEMBLY - STOP LIGHT RELAY)

NG

REPAIR OR REPLACE HARNESS OR CONNECTOR

9.CHECK HARNESS AND CONNECTOR (STOP LIGHT SWITCH ASSEMBLY - STOP LIGHT RELAY)
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 M1 stop light switch assembly connector.


c.

Remove the STOP LP relay (stop light relay) from the No. 1 engine room relay block and No. 1 junction block.


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
M1-1 (L) - 4 Always Below 1 Ω



Result:
Proceed to
OK
NG



OK

REPLACE STOP LIGHT RELAY

NG

REPAIR OR REPLACE HARNESS OR CONNECTOR

10.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

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

B

16.CHECK STOP LIGHT OPERATION
11.CHECK HARNESS AND CONNECTOR (STOP LIGHT CONTROL RELAY CIRCUIT)
a.
C401043C40
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 0.49,0.719 0.979,1.052 0.49,0.333 10 false M2
*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
M2-4 (ACC) - Body ground Always 11 to 14 V



Result:
Proceed to
OK
NG



OK

12.CHECK STOP LIGHT ILLUMINATION STATUS

NG

14.CHECK HARNESS AND CONNECTOR (STOP LIGHT CONTROL RELAY CIRCUIT)
12.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 M2 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

13.CHECK STOP LIGHT ILLUMINATION STATUS

B

REPLACE STOP LIGHT SWITCH ASSEMBLY

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


13.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 A28 skid control ECU (brake actuator assembly) connector.


c.

Disconnect the M2 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>REMOVAL


14.CHECK HARNESS AND CONNECTOR (STOP LIGHT CONTROL RELAY CIRCUIT)
a.
C401043C40
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 0.49,0.719 0.979,1.052 0.49,0.333 10 false M2
*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 A28 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
M2-4 (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>REMOVAL


NG

15.CHECK HARNESS AND CONNECTOR (STOP LIGHT SWITCH ASSEMBLY - BRAKE ACTUATOR ASSEMBLY)
15.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 A28 skid control ECU (brake actuator assembly) connector.


c.

Disconnect the M2 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
M2-4 (ACC) or A28-3 (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

16.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

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

NG

18.CHECK STOP LIGHT OPERATION
17.CHECK HARNESS AND CONNECTOR (STOP LIGHT SIGNAL INPUT CIRCUIT)
a.
C413719C04
0.281,0.531 0.729,0.792 0.448,0.26 2.427,1.708 2.427,0.823 true 0.177,0.188 0.49,0.385 0.313,0.198 10 false *a 0.365,0.573 0.771,0.76 0.406,0.188 10 false A28 2.281,0.635 2.771,0.813 0.49,0.177 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 A28 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
A28-24 (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>REMOVAL


NG

REPAIR OR REPLACE HARNESS OR CONNECTOR

18.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 A28 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>REMOVAL


NG

19.CHECK HARNESS AND CONNECTOR (STOP LIGHT SWITCH ASSEMBLY - REAR COMBINATION LIGHT ASSEMBLY LH)
19.CHECK HARNESS AND CONNECTOR (STOP LIGHT SWITCH ASSEMBLY - REAR COMBINATION LIGHT ASSEMBLY LH)
a.
C418257C01
0.281,0.74 0.677,0.969 0.396,0.229 1.292,0.438 1.573,1.073 true 0.365,0.771 0.708,0.969 0.344,0.198 10 false e4 0.167,0.167 0.479,0.365 0.313,0.198 10 false *a 1.094,0.281 1.552,0.479 0.458,0.198 10 false STP
*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.



b.

Disconnect the A28 skid control ECU (brake actuator assembly) connector.


c.

Disconnect the e4 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
e4-1 (STP) - 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.

w/o Headlight ECU: Click hereVehicle Exterior>LIGHTING (EXT)>LIGHTING SYSTEM (w/o Headlight ECU)>PROBLEM SYMPTOMS TABLE

w/ Headlight ECU: Click hereVehicle Exterior>LIGHTING (EXT)>LIGHTING SYSTEM (w/ Headlight ECU)>PROBLEM SYMPTOMS TABLE


NG

20.CHECK HARNESS AND CONNECTOR (STOP LIGHT SWITCH ASSEMBLY - REAR COMBINATION LIGHT ASSEMBLY RH)
20.CHECK HARNESS AND CONNECTOR (STOP LIGHT SWITCH ASSEMBLY - REAR COMBINATION LIGHT ASSEMBLY RH)
a.
C418257C02
0.281,0.74 0.677,0.969 0.396,0.229 1.229,0.552 1.531,1.125 true 0.396,0.771 0.74,0.969 0.344,0.198 10 false g2 0.167,0.167 0.479,0.365 0.313,0.198 10 false *a 1.021,0.375 1.479,0.573 0.458,0.198 10 false STP
*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.



b.

Disconnect the A28 skid control ECU (brake actuator assembly) connector.


c.

Disconnect the e4 rear combination light assembly LH connector.


d.

Disconnect the g2 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
g2-1 (STP) - 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.

w/o Headlight ECU: Click hereVehicle Exterior>LIGHTING (EXT)>LIGHTING SYSTEM (w/o Headlight ECU)>PROBLEM SYMPTOMS TABLE

w/ Headlight ECU: Click hereVehicle Exterior>LIGHTING (EXT)>LIGHTING SYSTEM (w/ Headlight ECU)>PROBLEM SYMPTOMS TABLE


NG

21.CHECK HARNESS AND CONNECTOR (STOP LIGHT SWITCH ASSEMBLY - CENTER STOP LIGHT ASSEMBLY)
21.CHECK HARNESS AND CONNECTOR (STOP LIGHT SWITCH ASSEMBLY - CENTER STOP LIGHT ASSEMBLY)
a.
C465908C01
0.74,0.375 1.115,0.625 0.375,0.25 2.24,0.375 2.615,0.625 0.375,0.25 0.531,1.844 0.76,1.531 true 2.083,1.823 2.313,1.51 true 0.104,0.104 0.417,0.302 0.313,0.198 10 false *a 0.417,1.792 0.573,1.99 0.156,0.198 10 false B 1.979,1.833 2.135,2.031 0.156,0.198 10 false B 0.854,0.417 1.313,0.615 0.458,0.198 10 false k1 2.365,0.417 2.823,0.615 0.458,0.198 10 false k4 2.688,0.406 3.063,0.646 0.375,0.24 10 false *B 1.177,0.406 1.552,0.646 0.375,0.24 10 false *A
*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.



b.

Disconnect the A28 skid control ECU (brake actuator assembly) connector.


c.

Disconnect the e4 rear combination light assembly LH connector.


d.

Disconnect the g2 rear combination light assembly RH connector.


e.

Disconnect the k1*1 or k4*2 center stop light assembly connector.

*1: for 8LED

*2: for 6LED



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:
for 8LED
Tester Connection Condition Specified Condition
k1-1 (B) - Body ground Brake pedal depressed 11 to 14 V


for 6LED
Tester Connection Condition Specified Condition
k4-1 (B) - 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 "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 TABLE

w/ Headlight ECU: Click hereVehicle Exterior>LIGHTING (EXT)>LIGHTING SYSTEM (w/ Headlight ECU)>PROBLEM SYMPTOMS TABLE


NG

22.CHECK HARNESS AND CONNECTOR (STOP LIGHT SWITCH ASSEMBLY - REAR COMBINATION LIGHT ASSEMBLY LH)
22.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 A28 skid control ECU (brake actuator assembly) connector.


c.

Disconnect the M2 stop light switch assembly connector.


d.

Disconnect the e4 rear combination light assembly LH connector.


e.

Disconnect the g2 rear combination light assembly RH connector.


f.

Disconnect the k1*1 or k4*2 center stop light assembly connector.

*1: for 8LED

*2: for 6LED



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
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

REPLACE STOP LIGHT SWITCH ASSEMBLY

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


NG

REPAIR OR REPLACE HARNESS OR CONNECTOR