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)  C050C12  Left Rear Wheel Speed Sensor Circuit Short to Battery  C051212  Right Rear Wheel Speed Sensor Circuit Short to Battery  


DESCRIPTION

Each speed sensor detects wheel speed and sends signals to the skid control ECU (brake actuator assembly). These signals are used by the ABS control.

The speed sensor detects the magnetic fields of the speed sensor rotor as it rotates and outputs a pulse signal.

The frequency of the pulse varies in accordance with the rotational speed of the speed sensor rotor and the system uses this to determine the wheel speed.

DTC No. Detection Item DTC Detection Condition Trouble Area
C050C12 Left Rear Wheel Speed Sensor Circuit Short to Battery A short to +B in the speed sensor signal circuit is detected for 0.12 seconds or more.
·

Rear speed sensor LH (rear axle hub and bearing assembly LH)*1

·

Rear speed sensor LH*2

·

Wire harness or connector

·

Skid control sensor wire LH (No. 2 parking brake wire assembly)

·

Skid control ECU (brake actuator assembly)


C051212 Right Rear Wheel Speed Sensor Circuit Short to Battery A short to +B in the speed sensor signal circuit is detected for 0.12 seconds or more.
·

Rear speed sensor RH (rear axle hub and bearing assembly RH)*1

·

Rear speed sensor RH*2

·

Wire harness or connector

·

Skid control sensor wire RH (No. 1 parking brake wire assembly)

·

Skid control ECU (brake actuator assembly)



*1: for 2WD

*2: for AWD

WIRING DIAGRAM

C501455E02
6,0.615 6.458,0.813 0.458,0.198 10 false RR+ 1.219,0.729 1.677,0.927 0.458,0.198 10 false RR+ 1.26,2.979 1.688,3.167 0.427,0.188 10 false RR+ 6,1.302 6.458,1.5 0.458,0.198 10 false RR- 1.24,1.417 1.698,1.615 0.458,0.198 10 false RR- 1.281,3.531 1.615,3.719 0.333,0.188 10 false RR- 5.708,0.604 6.021,0.802 0.313,0.198 10 false 22 5.698,1.292 6.01,1.49 0.313,0.198 10 false 37 1.719,0.521 2.031,0.719 0.313,0.198 10 false 2 1.729,1.208 2.042,1.406 0.313,0.198 10 false 1 1.74,2.74 2.052,2.938 0.313,0.198 10 false 2 1.729,3.333 2.042,3.531 0.313,0.198 10 false 1 3.177,2.969 3.635,3.167 0.458,0.198 10 false MM3 3.177,3.542 3.635,3.74 0.458,0.198 10 false MM3 1.656,2.969 2.115,3.167 0.458,0.198 10 false M50 1.656,3.542 2.115,3.74 0.458,0.198 10 false M50 0,1.833 2.146,2.208 2.146,0.375 10 false Rear Speed Sensor RH (Rear Axle Hub and Bearing Assembly RH) 2.188,3.958 4.406,4.323 2.219,0.365 10 false Skid Control Sensor Wire RH (No. 1 Parking Brake Wire Assembly) 4.104,0.573 4.417,0.771 0.313,0.198 10 false *1 4.083,1.271 4.396,1.469 0.313,0.198 10 false *1 4.115,2.813 4.427,3.01 0.313,0.198 10 false *2 4.135,3.417 4.448,3.615 0.313,0.198 10 false *2 6,4.854 6.458,5.052 0.458,0.198 10 false RL+ 1.26,4.99 1.719,5.188 0.458,0.198 10 false RL+ 1.271,7.177 1.604,7.365 0.333,0.188 10 false RL+ 6.01,5.542 6.469,5.74 0.458,0.198 10 false RL- 1.292,5.656 1.75,5.854 0.458,0.198 10 false RL- 1.271,7.688 1.625,7.896 0.354,0.208 10 false RL- 4.125,4.844 4.438,5.042 0.313,0.198 10 false *1 4.146,7 4.458,7.198 0.313,0.198 10 false *2 4.167,7.573 4.479,7.771 0.313,0.198 10 false *2 4.146,5.542 4.458,5.74 0.313,0.198 10 false *1 5.708,4.844 5.896,5.042 0.188,0.198 10 false 39 5.719,5.531 5.979,5.781 0.26,0.25 10 false 23 1.74,4.781 1.896,4.979 0.156,0.198 10 false 2 1.729,5.396 1.885,5.594 0.156,0.198 10 false 1 3.167,7.125 3.625,7.323 0.458,0.198 10 false NN6 3.188,7.698 3.646,7.896 0.458,0.198 10 false NN6 1.656,7.125 2.115,7.323 0.458,0.198 10 false N58 1.667,7.698 2.125,7.896 0.458,0.198 10 false N58 1.74,6.875 1.896,7.073 0.156,0.198 10 false 2 1.708,7.438 1.865,7.635 0.156,0.198 10 false 1 0.052,6.031 2.156,6.427 2.104,0.396 10 false Rear Speed Sensor LH (Rear Axle Hub and Bearing Assembly LH) 1.979,8.125 4.188,8.51 2.208,0.385 10 false Skid Control Sensor Wire LH (No. 2 Parking Brake Wire Assembly) 5.583,8.01 6.042,8.208 0.458,0.198 10 false A39 5.594,8.156 7.135,8.531 1.542,0.375 10 false Skid Control ECU (Brake Actuator Assembly) 4.365,8.438 5.594,8.635 1.229,0.198 10 false *2: for AWD 4.365,8.156 5.594,8.354 1.229,0.198 10 false *1: for 2WD 0.094,3.958 1.563,4.135 1.469,0.177 10 false Rear Speed Sensor RH 3.281,0.521 3.594,0.719 0.313,0.198 10 false 3 3.271,1.219 3.583,1.417 0.313,0.198 10 false 4 2.24,1.844 4.448,2.208 2.208,0.365 10 false Skid Control Sensor Wire RH (No. 1 Parking Brake Wire Assembly) 0.104,8.115 1.635,8.292 1.531,0.177 10 false Rear Speed Sensor LH 2.313,6.063 4.521,6.417 2.208,0.354 10 false Skid Control Sensor Wire LH (No. 2 Parking Brake Wire Assembly) 1.677,4.99 2.135,5.188 0.458,0.198 10 false N58 1.667,5.667 2.125,5.865 0.458,0.198 10 false N58 3.167,4.99 3.625,5.188 0.458,0.198 10 false NN6 3.167,5.656 3.625,5.854 0.458,0.198 10 false NN6 1.667,0.74 2.125,0.938 0.458,0.198 10 false M50 1.646,1.438 2.104,1.635 0.458,0.198 10 false M50 3.177,0.74 3.635,0.938 0.458,0.198 10 false MM3 3.177,1.438 3.635,1.635 0.458,0.198 10 false MM3 3.292,3.292 3.604,3.49 0.313,0.198 10 false 4 3.281,2.75 3.594,2.948 0.313,0.198 10 false 3 3.25,5.427 3.563,5.625 0.313,0.198 10 false 4 3.25,7.438 3.563,7.635 0.313,0.198 10 false 4 3.25,6.896 3.563,7.094 0.313,0.198 10 false 3 3.25,4.771 3.563,4.969 0.313,0.198 10 false 3

CAUTION / NOTICE / HINT

NOTICE:
·

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

·

After replacing or removing and installing a speed sensor, perform Dealer Mode (Signal Check) inspection to confirm that the speed sensors are operating correctly.

Click hereBrake>BRAKE CONTROL / DYNAMIC CONTROL SYSTEMS>ELECTRONICALLY CONTROLLED BRAKE SYSTEM (for Gasoline Model)>TEST MODE PROCEDURE



PROCEDURE

1.CHECK VEHICLE
a.

Check the vehicle specification.


Result:
Result Proceed to
for 2WD A
for AWD B



A

2.CHECK HARNESS AND CONNECTOR (SENSOR GROUND CIRCUIT)

B

6.CHECK HARNESS AND CONNECTOR (SENSOR GROUND CIRCUIT)
2.CHECK HARNESS AND CONNECTOR (SENSOR GROUND CIRCUIT)
a.
C233859C96
0.688,0.542 1.073,0.813 0.385,0.271 1.99,0.5 2.375,0.771 0.385,0.271 1.25,1.875 0.969,1.375 true 0.563,1.865 0.792,1.344 true 1.917,1.854 2.146,1.333 true 2.615,1.844 2.333,1.344 true 0.208,0.188 0.521,0.385 0.313,0.198 10 false *a 0.76,0.604 1.073,0.802 0.313,0.198 10 false N58 1.219,1.896 1.615,2.115 0.396,0.219 10 false RL+ 0.323,1.875 0.719,2.094 0.396,0.219 10 false RL- 2.063,0.563 2.375,0.76 0.313,0.198 10 false M50 0.427,0.604 0.74,0.802 0.313,0.198 10 false *A 1.75,0.573 2.063,0.771 0.313,0.198 10 false *B 2.563,1.875 2.958,2.094 0.396,0.219 10 false RR+ 1.74,1.865 2.135,2.083 0.396,0.219 10 false RR-
*A for LH
*B for RH
*a Front view of skid control sensor wire (parking brake wire assembly)
(to Rear Speed Sensor)


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 M50 or N58 rear speed sensor (rear axle hub and bearing assembly) connector.


c.

Check both the connector case and the terminals for deformation and corrosion.

OK:

No deformation or corrosion.



d.

Turn the ignition switch to ON.


e.

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

Standard Voltage:
for LH
Tester Connection Condition Specified Condition
N58-2 (RL+) - N58-1 (RL-) Ignition switch ON 11 to 14 V

for RH
Tester Connection Condition Specified Condition
M50-2 (RR+) - M50-1 (RR-) Ignition switch ON 11 to 14 V



Result:
Proceed to
OK
NG



OK

REPLACE REAR AXLE HUB AND BEARING ASSEMBLY

Click hereDrivetrain>AXLE AND DIFFERENTIAL>REAR AXLE HUB>REMOVAL


NG

3.CHECK HARNESS AND CONNECTOR (SENSOR GROUND CIRCUIT)
3.CHECK HARNESS AND CONNECTOR (SENSOR GROUND CIRCUIT)
a.
C406206C07
0.729,0.302 1.115,0.573 0.385,0.271 2.219,0.323 2.604,0.594 0.385,0.271 0.208,0.188 0.521,0.385 0.313,0.198 10 false *a 0.802,0.354 1.156,0.542 0.354,0.188 10 false NN6 2.271,0.375 2.76,0.594 0.49,0.219 10 false MM3 0.5,0.365 0.813,0.563 0.313,0.198 10 false *A 2.01,0.396 2.323,0.594 0.313,0.198 10 false *B
*A for LH
*B for RH
*a Front view of wire harness connector
(to Skid Control Sensor Wire (Parking Brake Wire 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 MM3 or NN6 skid control sensor wire (parking brake wire assembly) connector.


c.

Check both the connector case and the terminals for deformation and corrosion.

OK:

No deformation or corrosion.



d.

Turn the ignition switch to ON.


e.

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

Standard Voltage:
for LH
Tester Connection Condition Specified Condition
NN6-3 - NN6-4 Ignition switch ON 11 to 14 V

for RH
Tester Connection Condition Specified Condition
MM3-3 - MM3-4 Ignition switch ON 11 to 14 V



Result:
Proceed to
OK
NG



OK

REPLACE PARKING BRAKE WIRE ASSEMBLY

NG

4.CHECK HARNESS AND CONNECTOR (PARKING BRAKE WIRE ASSEMBLY - BRAKE ACTUATOR ASSEMBLY)
4.CHECK HARNESS AND CONNECTOR (PARKING BRAKE WIRE ASSEMBLY - BRAKE ACTUATOR ASSEMBLY)
a.
C406206C07
0.729,0.302 1.115,0.573 0.385,0.271 2.219,0.323 2.604,0.594 0.385,0.271 0.208,0.188 0.521,0.385 0.313,0.198 10 false *a 0.802,0.354 1.156,0.542 0.354,0.188 10 false NN6 2.271,0.375 2.76,0.594 0.49,0.219 10 false MM3 0.5,0.365 0.813,0.563 0.313,0.198 10 false *A 2.01,0.396 2.323,0.594 0.313,0.198 10 false *B
*A for LH
*B for RH
*a Front view of wire harness connector
(to Skid Control Sensor Wire (Parking Brake Wire 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 MM3 or NN6 skid control sensor wire (parking brake wire assembly) 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:
for LH
Tester Connection Condition Specified Condition
NN6-4 - Body ground Always Below 1.5 V

for RH
Tester Connection Condition Specified Condition
MM3-4 - Body ground Always Below 1.5 V



Result:
Proceed to
OK
NG



OK

5.CHECK HARNESS AND CONNECTOR (PARKING BRAKE WIRE ASSEMBLY - BRAKE ACTUATOR ASSEMBLY)

NG

REPAIR OR REPLACE HARNESS OR CONNECTOR

5.CHECK HARNESS AND CONNECTOR (PARKING BRAKE WIRE 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 MM3 or NN6 skid control sensor wire (parking brake wire 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:
for LH
Tester Connection Condition Specified Condition
NN6-3 or A39-39 (RL+) - NN6-4 or A39-23 (RL-) Always 10 kΩ or higher

for RH
Tester Connection Condition Specified Condition
MM3-3 or A39-22 (RR+) - MM3-4 or A39-37 (RR-) Always 10 kΩ or higher



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

6.CHECK HARNESS AND CONNECTOR (SENSOR GROUND CIRCUIT)
a.
C233859C96
0.688,0.542 1.073,0.813 0.385,0.271 1.99,0.5 2.375,0.771 0.385,0.271 1.25,1.875 0.969,1.375 true 0.563,1.865 0.792,1.344 true 1.917,1.854 2.146,1.333 true 2.615,1.844 2.333,1.344 true 0.208,0.188 0.521,0.385 0.313,0.198 10 false *a 0.76,0.604 1.073,0.802 0.313,0.198 10 false N58 1.219,1.896 1.615,2.115 0.396,0.219 10 false RL+ 0.323,1.875 0.719,2.094 0.396,0.219 10 false RL- 2.063,0.563 2.375,0.76 0.313,0.198 10 false M50 0.427,0.604 0.74,0.802 0.313,0.198 10 false *A 1.75,0.573 2.063,0.771 0.313,0.198 10 false *B 2.563,1.875 2.958,2.094 0.396,0.219 10 false RR+ 1.74,1.865 2.135,2.083 0.396,0.219 10 false RR-
*A for LH
*B for RH
*a Front view of skid control sensor wire (parking brake wire assembly)
(to Rear Speed Sensor)


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 M50 or N58 rear speed sensor connector.


c.

Check both the connector case and the terminals for deformation and corrosion.

OK:

No deformation or corrosion.



d.

Turn the ignition switch to ON.


e.

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

Standard Voltage:
for LH
Tester Connection Condition Specified Condition
N58-2 (RL+) - N58-1 (RL-) Ignition switch ON 11 to 14 V

for RH
Tester Connection Condition Specified Condition
M50-2 (RR+) - M50-1 (RR-) Ignition switch ON 11 to 14 V



Result:
Proceed to
OK
NG



OK

REPLACE REAR SPEED SENSOR

Click hereBrake>BRAKE CONTROL / DYNAMIC CONTROL SYSTEMS>REAR SPEED SENSOR (for AWD)>REMOVAL


NG

3.CHECK HARNESS AND CONNECTOR (SENSOR GROUND CIRCUIT)