VEHICLE STABILITY CONTROL SYSTEM, Diagnostic DTC:C1330, C1331, C1332, C1333, C1464, C1465, C1466, C1467

DTC Code DTC Name
C1330 Open in Front Speed Sensor RH
C1331 Open in Front Speed Sensor LH
C1332 Open in Rear Speed Sensor RH
C1333 Open in Rear Speed Sensor LH
C1464 Front Speed Sensor RH
C1465 Front Speed Sensor LH
C1466 Rear Speed Sensor RH
C1467 Rear Speed Sensor LH

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.

Tech Tips

The output voltage values shown below are for when the vehicle wire harnesses are connected to the skid control ECU (brake actuator assembly) and the speed sensors.

Figure 1. for Front

B006Z3XE20

Figure 2. for Rear

B0071LOE64
DTC No. Detection Item DTC Detection Condition Trouble Area
C1330 Open in Front Speed Sensor RH An open or short in the speed sensor signal circuit.

  • Front speed sensor RH

  • Speed sensor circuit

  • Front speed sensor installation
C1331 Open in Front Speed Sensor LH An open or short in the speed sensor signal circuit.

  • Front speed sensor LH

  • Speed sensor circuit

  • Front speed sensor installation
C1332 Open in Rear Speed Sensor RH An open or short in the speed sensor signal circuit.

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

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

  • Speed sensor circuit

  • Rear speed sensor installation
C1333 Open in Rear Speed Sensor LH An open or short in the speed sensor signal circuit.

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

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

  • Speed sensor circuit

  • Rear speed sensor installation
C1464 Front Speed Sensor RH

Any of the following is detected:


  1. The vehicle speed is more than 50.4 km/h (31 mph) and pulses are not detected for 0.4 seconds.

  2. After the initial start or restart and when the vehicle speed has reached 12 km/h (7 mph), a wheel speed of 0 km/h (0 mph) is detected.

  3. After the initial start or restart and when the vehicle speed has reached 20 km/h (12 mph), a front wheel speed of 0 km/h (0 mph) is detected.

  4. The following conditions are met for 9 to 72 seconds or more (varies depending on the driving conditions):


    • The difference between the speed of the fastest wheel and the speed of the slowest wheel is 5% or more of the vehicle speed. (If the speed of any wheel is less than 5 km/h (3 mph), a speed difference of up to 15% is allowable.)

    • The vehicle speed is less than 100 km/h (62 mph) and the difference between the speed of the fastest wheel and the speed of the slowest wheel is 5 km/h (3 mph) or more. (If the speed of any wheel is less than 5 km/h (3 mph), a speed difference of up to 16 km/h (10 mph) is allowable.)

    • The vehicle speed is 100 km/h (62 mph) or more and the difference between the speed of the fastest wheel and the speed of the slowest wheel is 6% or more of the vehicle speed. (If the speed of any wheel is less than 5 km/h (3 mph), a speed difference of up to 15% is allowable.)

  5. Wheel speed sensor signal fluctuation is equivalent to 98 G or more, or alternates between 50 G or more and -50 G or less.

  6. An abnormal signal is received from a wheel speed sensor.

  • Front speed sensor RH

  • Speed sensor circuit

  • Front speed sensor rotor RH (front axle hub sub-assembly RH)

  • Front speed sensor installation

  • Skid control ECU (brake actuator assembly)
C1465 Front Speed Sensor LH

Any of the following is detected:


  1. The vehicle speed is more than 50.4 km/h (31 mph) and pulses are not detected for 0.4 seconds.

  2. After the initial start or restart and when the vehicle speed has reached 12 km/h (7 mph), a wheel speed of 0 km/h (0 mph) is detected.

  3. After the initial start or restart and when the vehicle speed has reached 20 km/h (12 mph), a front wheel speed of 0 km/h (0 mph) is detected.

  4. The following conditions are met for 9 to 72 seconds or more (varies depending on the driving conditions):


    • The difference between the speed of the fastest wheel and the speed of the slowest wheel is 5% or more of the vehicle speed. (If the speed of any wheel is less than 5 km/h (3 mph), a speed difference of up to 15% is allowable.)

    • The vehicle speed is less than 100 km/h (62 mph) and the difference between the speed of the fastest wheel and the speed of the slowest wheel is 5 km/h (3 mph) or more. (If the speed of any wheel is less than 5 km/h (3 mph), a speed difference of up to 16 km/h (10 mph) is allowable.)

    • The vehicle speed is 100 km/h (62 mph) or more and the difference between the speed of the fastest wheel and the speed of the slowest wheel is 6% or more of the vehicle speed. (If the speed of any wheel is less than 5 km/h (3 mph), a speed difference of up to 15% is allowable.)

  5. Wheel speed sensor signal fluctuation is equivalent to 98 G or more, or alternates between 50 G or more and -50 G or less.

  6. An abnormal signal is received from a wheel speed sensor.

  • Front speed sensor LH

  • Speed sensor circuit

  • Front speed sensor rotor LH (front axle hub sub-assembly LH)

  • Front speed sensor installation

  • Skid control ECU (brake actuator assembly)
C1466 Rear Speed Sensor RH

Any of the following is detected:


  1. The vehicle speed is more than 50.4 km/h (31 mph) and pulses are not detected for 0.4 seconds.

  2. After the initial start or restart and when the vehicle speed has reached 12 km/h (7 mph), a wheel speed of 0 km/h (0 mph) is detected.

  3. After the initial start or restart and when the vehicle speed has reached 20 km/h (12 mph), a rear wheel speed of 0 km/h (0 mph) is detected.

  4. The following conditions are met for 9 to 72 seconds or more (varies depending on the driving conditions):


    • The difference between the speed of the fastest wheel and the speed of the slowest wheel is 5% or more of the vehicle speed. (If the speed of any wheel is less than 5 km/h (3 mph), a speed difference of up to 15% is allowable.)

    • The vehicle speed is less than 100 km/h (62 mph) and the difference between the speed of the fastest wheel and the speed of the slowest wheel is 5 km/h (3 mph) or more. (If the speed of any wheel is less than 5 km/h (3 mph), a speed difference of up to 16 km/h (10 mph) is allowable.)

    • The vehicle speed is 100 km/h (62 mph) or more and the difference between the speed of the fastest wheel and the speed of the slowest wheel is 6% or more of the vehicle speed. (If the speed of any wheel is less than 5 km/h (3 mph), a speed difference of up to 15% is allowable.)

  5. Wheel speed sensor signal fluctuation is equivalent to 98 G or more, or alternates between 50 G or more and -50 G or less.

  6. An abnormal signal is received from a wheel speed sensor.

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

  • Speed sensor circuit

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

  • Rear speed sensor rotor RH (rear axle hub and bearing assembly RH)

  • Rear speed sensor installation

  • Skid control ECU (brake actuator assembly)
C1467 Rear Speed Sensor LH

Any of the following is detected:


  1. The vehicle speed is more than 50.4 km/h (31 mph) and pulses are not detected for 0.4 seconds.

  2. After the initial start or restart and when the vehicle speed has reached 12 km/h (7 mph), a wheel speed of 0 km/h (0 mph) is detected.

  3. After the initial start or restart and when the vehicle speed has reached 20 km/h (12 mph), a rear wheel speed of 0 km/h (0 mph) is detected.

  4. The following conditions are met for 9 to 72 seconds or more (varies depending on the driving conditions):


    • The difference between the speed of the fastest wheel and the speed of the slowest wheel is 5% or more of the vehicle speed. (If the speed of any wheel is less than 5 km/h (3 mph), a speed difference of up to 15% is allowable.)

    • The vehicle speed is less than 100 km/h (62 mph) and the difference between the speed of the fastest wheel and the speed of the slowest wheel is 5 km/h (3 mph) or more. (If the speed of any wheel is less than 5 km/h (3 mph), a speed difference of up to 16 km/h (10 mph) is allowable.)

    • The vehicle speed is 100 km/h (62 mph) or more and the difference between the speed of the fastest wheel and the speed of the slowest wheel is 6% or more of the vehicle speed. (If the speed of any wheel is less than 5 km/h (3 mph), a speed difference of up to 15% is allowable.)

  5. Wheel speed sensor signal fluctuation is equivalent to 98 G or more, or alternates between 50 G or more and -50 G or less.

  6. An abnormal signal is received from a wheel speed sensor.

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

  • Speed sensor circuit

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

  • Rear speed sensor rotor LH (rear axle hub and bearing assembly LH)

  • Rear speed sensor installation

  • Skid control ECU (brake actuator assembly)

Tech Tips


  • DTCs C1330 and C1464 are for the front speed sensor RH.

  • DTCs C1331 and C1465 are for the front speed sensor LH.

  • DTCs C1332 and C1466 are for the rear speed sensor RH.

  • DTCs C1333 and C1467 are for the rear speed sensor LH.

DTC Detection Conditions: C1464
Vehicle Condition
Pattern 1 Pattern 2 Pattern 3 Pattern 4
Diagnosis Condition The vehicle speed is more than 50.4 km/h (31 mph). ○ - - -
After the initial start or restart and when the vehicle speed has reached 12 km/h (7 mph). - ○ - -
After the initial start or restart and when the vehicle speed has reached 20 km/h (12 mph). - - ○ -
Malfunction Status Pulses are not detected. ○ - - -
A wheel speed of 0 km/h (0 mph) is detected. - ○ - -
A front wheel speed of 0 km/h (0 mph) is detected. - - ○ -
The difference between the speed of the fastest wheel and the speed of the slowest wheel is 5% or more of the vehicle speed. (If the speed of any wheel is less than 5 km/h (3 mph), a speed difference of up to 15% is allowable.) - - - ○
Detection Time 0.4 seconds - - 9 to 72 seconds or more (varies depending on the driving conditions)
Number of Trips 1 trip 1 trip 1 trip 1 trip

Tech Tips

DTC will be output when conditions for either of the patterns in the table above are met.

DTC Detection Conditions: C1464
Vehicle Condition
Pattern 5 Pattern 6 Pattern 7 Pattern 8
Diagnosis Condition The vehicle speed is less than 100 km/h (62 mph). ○ - - -
The vehicle speed is 100 km/h (62 mph) or more. - ○ - -
Malfunction Status The difference between the speed of the fastest wheel and the speed of the slowest wheel is 5 km/h (3 mph) or more. (If the speed of any wheel is less than 5 km/h (3 mph), a speed difference of up to 16 km/h (10 mph) is allowable.) ○ - - -
The difference between the speed of the fastest wheel and the speed of the slowest wheel is 6% or more of the vehicle speed. (If the speed of any wheel is less than 5 km/h (3 mph), a speed difference of up to 15% is allowable.) - ○ - -
Wheel speed sensor signal fluctuation is equivalent to 98 G or more, or alternates between 50 G or more and -50 G or less. - - ○ -
An abnormal signal is received from a wheel speed sensor. - - - ○
Detection Time 9 to 72 seconds or more (varies depending on the driving conditions) 9 to 72 seconds or more (varies depending on the driving conditions) - -
Number of Trips 1 trip 1 trip 1 trip 1 trip

Tech Tips

DTC will be output when conditions for either of the patterns in the table above are met.

DTC Detection Conditions: C1465
Vehicle Condition
Pattern 1 Pattern 2 Pattern 3 Pattern 4
Diagnosis Condition The vehicle speed is more than 50.4 km/h (31 mph). ○ - - -
After the initial start or restart and when the vehicle speed has reached 12 km/h (7 mph). - ○ - -
After the initial start or restart and when the vehicle speed has reached 20 km/h (12 mph). - - ○ -
Malfunction Status Pulses are not detected. ○ - - -
A wheel speed of 0 km/h (0 mph) is detected. - ○ - -
A front wheel speed of 0 km/h (0 mph) is detected. - - ○ -
The difference between the speed of the fastest wheel and the speed of the slowest wheel is 5% or more of the vehicle speed. (If the speed of any wheel is less than 5 km/h (3 mph), a speed difference of up to 15% is allowable.) - - - ○
Detection Time 0.4 seconds - - 9 to 72 seconds or more (varies depending on the driving conditions)
Number of Trips 1 trip 1 trip 1 trip 1 trip

Tech Tips

DTC will be output when conditions for either of the patterns in the table above are met.

DTC Detection Conditions: C1465
Vehicle Condition
Pattern 5 Pattern 6 Pattern 7 Pattern 8
Diagnosis Condition The vehicle speed is less than 100 km/h (62 mph). ○ - - -
The vehicle speed is 100 km/h (62 mph) or more. - ○ - -
Malfunction Status The difference between the speed of the fastest wheel and the speed of the slowest wheel is 5 km/h (3 mph) or more. (If the speed of any wheel is less than 5 km/h (3 mph), a speed difference of up to 16 km/h (10 mph) is allowable.) ○ - - -
The difference between the speed of the fastest wheel and the speed of the slowest wheel is 6% or more of the vehicle speed. (If the speed of any wheel is less than 5 km/h (3 mph), a speed difference of up to 15% is allowable.) - ○ - -
Wheel speed sensor signal fluctuation is equivalent to 98 G or more, or alternates between 50 G or more and -50 G or less. - - ○ -
An abnormal signal is received from a wheel speed sensor. - - - ○
Detection Time 9 to 72 seconds or more (varies depending on the driving conditions) 9 to 72 seconds or more (varies depending on the driving conditions) - -
Number of Trips 1 trip 1 trip 1 trip 1 trip

Tech Tips

DTC will be output when conditions for either of the patterns in the table above are met.

DTC Detection Conditions: C1466
Vehicle Condition
Pattern 1 Pattern 2 Pattern 3 Pattern 4
Diagnosis Condition The vehicle speed is more than 50.4 km/h (31 mph). ○ - - -
After the initial start or restart and when the vehicle speed has reached 12 km/h (7 mph). - ○ - -
After the initial start or restart and when the vehicle speed has reached 20 km/h (12 mph). - - ○ -
Malfunction Status Pulses are not detected. ○ - - -
A wheel speed of 0 km/h (0 mph) is detected. - ○ - -
A rear wheel speed of 0 km/h (0 mph) is detected. - - ○ -
The difference between the speed of the fastest wheel and the speed of the slowest wheel is 5% or more of the vehicle speed. (If the speed of any wheel is less than 5 km/h (3 mph), a speed difference of up to 15% is allowable.) - - - ○
Detection Time 0.4 seconds - - 9 to 72 seconds or more (varies depending on the driving conditions)
Number of Trips 1 trip 1 trip 1 trip 1 trip

Tech Tips

DTC will be output when conditions for either of the patterns in the table above are met.

DTC Detection Conditions: C1466
Vehicle Condition
Pattern 5 Pattern 6 Pattern 7 Pattern 8
Diagnosis Condition The vehicle speed is less than 100 km/h (62 mph). ○ - - -
The vehicle speed is 100 km/h (62 mph) or more. - ○ - -
Malfunction Status The difference between the speed of the fastest wheel and the speed of the slowest wheel is 5 km/h (3 mph) or more. (If the speed of any wheel is less than 5 km/h (3 mph), a speed difference of up to 16 km/h (10 mph) is allowable.) ○ - - -
The difference between the speed of the fastest wheel and the speed of the slowest wheel is 6% or more of the vehicle speed. (If the speed of any wheel is less than 5 km/h (3 mph), a speed difference of up to 15% is allowable.) - ○ - -
Wheel speed sensor signal fluctuation is equivalent to 98 G or more, or alternates between 50 G or more and -50 G or less. - - ○ -
An abnormal signal is received from a wheel speed sensor. - - - ○
Detection Time 9 to 72 seconds or more (varies depending on the driving conditions) 9 to 72 seconds or more (varies depending on the driving conditions) - -
Number of Trips 1 trip 1 trip 1 trip 1 trip

Tech Tips

DTC will be output when conditions for either of the patterns in the table above are met.

DTC Detection Conditions: C1467
Vehicle Condition
Pattern 1 Pattern 2 Pattern 3 Pattern 4
Diagnosis Condition The vehicle speed is more than 50.4 km/h (31 mph). ○ - - -
After the initial start or restart and when the vehicle speed has reached 12 km/h (7 mph). - ○ - -
After the initial start or restart and when the vehicle speed has reached 20 km/h (12 mph). - - ○ -
Malfunction Status Pulses are not detected. ○ - - -
A wheel speed of 0 km/h (0 mph) is detected. - ○ - -
A rear wheel speed of 0 km/h (0 mph) is detected. - - ○ -
The difference between the speed of the fastest wheel and the speed of the slowest wheel is 5% or more of the vehicle speed. (If the speed of any wheel is less than 5 km/h (3 mph), a speed difference of up to 15% is allowable.) - - - ○
Detection Time 0.4 seconds - - 9 to 72 seconds or more (varies depending on the driving conditions)
Number of Trips 1 trip 1 trip 1 trip 1 trip

Tech Tips

DTC will be output when conditions for either of the patterns in the table above are met.

DTC Detection Conditions: C1467
Vehicle Condition
Pattern 5 Pattern 6 Pattern 7 Pattern 8
Diagnosis Condition The vehicle speed is less than 100 km/h (62 mph). ○ - - -
The vehicle speed is 100 km/h (62 mph) or more. - ○ - -
Malfunction Status The difference between the speed of the fastest wheel and the speed of the slowest wheel is 5 km/h (3 mph) or more. (If the speed of any wheel is less than 5 km/h (3 mph), a speed difference of up to 16 km/h (10 mph) is allowable.) ○ - - -
The difference between the speed of the fastest wheel and the speed of the slowest wheel is 6% or more of the vehicle speed. (If the speed of any wheel is less than 5 km/h (3 mph), a speed difference of up to 15% is allowable.) - ○ - -
Wheel speed sensor signal fluctuation is equivalent to 98 G or more, or alternates between 50 G or more and -50 G or less. - - ○ -
An abnormal signal is received from a wheel speed sensor. - - - ○
Detection Time 9 to 72 seconds or more (varies depending on the driving conditions) 9 to 72 seconds or more (varies depending on the driving conditions) - -
Number of Trips 1 trip 1 trip 1 trip 1 trip

Tech Tips

DTC will be output when conditions for either of the patterns in the table above are met.

WIRING DIAGRAM

Figure 3. for Front

B006Z05E03
*a Front Speed Sensor RH
*b Front Speed Sensor LH
*c Skid Control ECU (Brake Actuator Assembly)

Figure 4. for Rear

B0070WQE04

CAUTION / NOTICE / HINT

Note

When replacing the skid control ECU (brake actuator assembly), perform system variant learning and acceleration sensor zero point calibration.

Click here

PROCEDURE


  1. RECONFIRM DTC


    1. Clear the DTCs.


      Chassis > ABS/VSC/TRC > Clear DTCs

    2. Turn the ignition switch off.

    3. Start the engine.

    4. Drive the vehicle at a speed of 54 km/h (34 mph) or more for at least 120 seconds.

    5. Check if the same DTC is output.


      Chassis > ABS/VSC/TRC > Trouble Codes
      Result
      Result Proceed to
      C1330, C1331, C1464 or C1465 is output A
      C1332, C1333, C1466 or C1467 is output B

    B

    CHECK REAR SPEED SENSOR INSTALLATION Click here

    A

  2. CHECK FRONT SPEED SENSOR INSTALLATION


    1. B00719VC10
      *1 Front Speed Sensor
      *a Correct
      *b Incorrect
      *c 8.5 N*m
      *d No clearance

      Turn the ignition switch off.

    2. Check the speed sensor installation.

      OK
      There is no clearance between the sensor and the front steering knuckle.
      The installation bolt is tightened properly.
      Torque
      8.5 N*m (87 kgf*cm, 75 in.*lbf)
      Result
      Proceed to
      OK
      NG

    NG

    REINSTALL OR REPLACE FRONT SPEED SENSOR Click here

    OK

  3. CHECK FRONT SPEED SENSOR (CHECK FOR FOREIGN MATTER)


    1. Remove the front speed sensor.

      Click here

    2. Check the front speed sensor tip.

      OK
      The sensor tip is free of scratches, oil, and foreign matter.

      Note


      • If there is oil or foreign matter on the speed sensor, clean the speed sensor.

      • If the speed sensor is damaged, replace the speed sensor with a new one.

      • Check the speed sensor signal after cleaning or replacement.

        Click here

      Result
      Proceed to
      OK
      NG

    NG

    CLEAN OR REPLACE FRONT SPEED SENSOR

    OK

  4. INSPECT BRAKE ACTUATOR ASSEMBLY (POWER SOURCE CIRCUIT)


    1. B006WUHC35
      *A for RH
      *B for LH
      *a

      Front view of wire harness connector

      (to Front 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.

    2. Disconnect the A35 or A36 front speed sensor connector.

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

      OK
      No deformation or corrosion.

    4. Turn the ignition switch to ON.

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

      Standard Voltage
      for RH
      Tester Connection Condition Specified Condition
      A35-1 (FR+) - Body ground Ignition switch ON 11 to 14 V
      for LH
      Tester Connection Condition Specified Condition
      A36-1 (FL+) - Body ground Ignition switch ON 11 to 14 V
      Result
      Proceed to
      OK
      NG

    NG

    CHECK HARNESS AND CONNECTOR (BRAKE ACTUATOR ASSEMBLY - FRONT SPEED SENSOR) Click here

    OK

  5. INSPECT BRAKE ACTUATOR ASSEMBLY (GROUND CIRCUIT)


    1. B006WUHC36
      *A for RH
      *B for LH
      *a

      Front view of wire harness connector

      (to Front Speed Sensor)

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

      Standard Voltage
      for RH
      Tester Connection Condition Specified Condition
      A35-1 (FR+) - A35-2 (FR-) Ignition switch ON 11 to 14 V
      for LH
      Tester Connection Condition Specified Condition
      A36-1 (FL+) - A36-2 (FL-) Ignition switch ON 11 to 14 V
      Result
      Proceed to
      OK
      NG

    NG

    CHECK HARNESS AND CONNECTOR (BRAKE ACTUATOR ASSEMBLY - FRONT SPEED SENSOR) Click here

    OK

  6. CHECK FRONT SPEED SENSOR ROTOR (CHECK FOR FOREIGN MATTER)


    1. Remove the front speed sensor rotor (front axle hub sub-assembly).

      Click here

    2. Check the speed sensor rotor.

      OK
      The rotor is free of scratches, oil, and foreign matter.

      Note


      • If there is oil or foreign matter on the speed sensor rotor, clean the speed sensor rotor.

      • If the speed sensor rotor is damaged, replace the speed sensor rotor with a new one.

      • Check the speed sensor signal after cleaning or replacement.

        Click here

      Tech Tips


      • The front speed sensor rotor is incorporated into the front axle hub sub-assembly.

      • If the front speed sensor rotor needs to be replaced, replace it together with the front axle hub sub-assembly.

      Result
      Result Proceed to
      OK A
      NG (The speed sensor rotor is damaged) B
      NG (There is foreign matter on the speed sensor rotor) C

    A

    REPLACE FRONT SPEED SENSOR Click here

    B

    REPLACE FRONT AXLE HUB SUB-ASSEMBLY Click here

    C

    CLEAN FRONT SPEED SENSOR ROTOR

  7. CHECK HARNESS AND CONNECTOR (BRAKE ACTUATOR ASSEMBLY - FRONT SPEED SENSOR)


    1. Turn the ignition switch off.

    2. Make sure that there is no looseness at the locking part and the connecting part of the connectors.

      OK
      The connector is securely connected.

    3. Disconnect the A34 skid control ECU (brake actuator assembly) connector.

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

      OK
      No deformation or corrosion.

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

      Standard Resistance
      for RH:
      Tester Connection Condition Specified Condition
      A34-26 (FR-) - A35-2 (FR-) Always Below 1 Ω
      A34-26 (FR-) or A35-2 (FR-) - Body ground Always 10 kΩ or higher
      for LH:
      Tester Connection Condition Specified Condition
      A34-7 (FL-) - A36-2 (FL-) Always Below 1 Ω
      A34-7 (FL-) or A36-2 (FL-) - Body ground Always 10 kΩ or higher
      Result
      Proceed to
      OK
      NG

    OK

    REPLACE BRAKE ACTUATOR ASSEMBLY for LHD: Click here
    REPLACE BRAKE ACTUATOR ASSEMBLY for RHD: Click here

    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR

  8. CHECK HARNESS AND CONNECTOR (BRAKE ACTUATOR ASSEMBLY - FRONT SPEED SENSOR)


    1. Turn the ignition switch off.

    2. Make sure that there is no looseness at the locking part and the connecting part of the connectors.

      OK
      The connector is securely connected.

    3. Disconnect the A34 skid control ECU (brake actuator assembly) connector.

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

      OK
      No deformation or corrosion.

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

      Standard Resistance
      for RH:
      Tester Connection Condition Specified Condition
      A34-21 (FR+) - A35-1 (FR+) Always Below 1 Ω
      A34-21 (FR+) or A35-1 (FR+) - Body ground Always 10 kΩ or higher
      for LH:
      Tester Connection Condition Specified Condition
      A34-24 (FL+) - A36-1 (FL+) Always Below 1 Ω
      A34-24 (FL+) or A36-1 (FL+) - Body ground Always 10 kΩ or higher
      Result
      Proceed to
      OK
      NG

    OK

    REPLACE BRAKE ACTUATOR ASSEMBLY for LHD: Click here
    REPLACE BRAKE ACTUATOR ASSEMBLY for RHD: Click here

    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR

  9. CHECK REAR SPEED SENSOR INSTALLATION


    1. B006XKDC07
      *1 Rear Speed Sensor
      *a OK
      *b NG
      *c No Clearance

      Turn the ignition switch off.

    2. Check the speed sensor installation.

      OK
      There is no clearance between the sensor and the rear axle hub.

      Tech Tips

      Because the rear axle hub and bearing assembly cannot be disassembled, if the rear speed sensor needs replacement, replace the rear axle hub and bearing assembly.

      Result
      Proceed to
      OK
      NG

    NG

    REPLACE REAR AXLE HUB AND BEARING ASSEMBLY Click here

    OK

  10. INSPECT BRAKE ACTUATOR ASSEMBLY (POWER SOURCE CIRCUIT)


    1. B0070NRC55
      *A for RH
      *B for LH
      *a

      Front view of wire harness connector

      (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.

    2. Disconnect the u2 or v2 rear speed sensor connector.

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

      OK
      No deformation or corrosion.

    4. Turn the ignition switch to ON.

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

      Standard Voltage
      for RH
      Tester Connection Condition Specified Condition
      u2-2 (RR+) - Body ground Ignition switch ON 11 to 14 V
      for LH
      Tester Connection Condition Specified Condition
      v2-2 (RL+) - Body ground Ignition switch ON 11 to 14 V
      Result
      Proceed to
      OK
      NG

    NG

    INSPECT PARKING BRAKE WIRE ASSEMBLY Click here

    OK

  11. INSPECT BRAKE ACTUATOR ASSEMBLY (GROUND CIRCUIT)


    1. B0070NRC56
      *A for RH
      *B for LH
      *a

      Front view of wire harness connector

      (to Rear Speed Sensor)

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

      Standard Voltage
      for RH
      Tester Connection Condition Specified Condition
      u2-2 (RR+) - u2-1 (RR-) Ignition switch ON 11 to 14 V
      for LH
      Tester Connection Condition Specified Condition
      v2-2 (RL+) - v2-1 (RL-) Ignition switch ON 11 to 14 V
      Result
      Proceed to
      OK
      NG

    OK

    REPLACE REAR AXLE HUB AND BEARING ASSEMBLY Click here

    NG

  12. INSPECT PARKING BRAKE WIRE ASSEMBLY


    1. B006ZA1C16
      *A for RH
      *B for LH
      *a Front view of skid control sensor wire (parking brake wire assembly)
      *b

      Front view of wire harness connector

      (to Sensor Side Connector)
      *c

      Front view of wire harness connector

      (to Vehicle Side Connector)

      Turn the ignition switch off.

    2. Make sure that there is no looseness at the locking part and the connecting part of the connectors.

      OK
      The connector is securely connected.

    3. Remove the skid control sensor wire RH (No. 1 parking brake wire assembly) or the skid control sensor wire LH (No. 2 parking brake wire assembly).

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

      OK
      No deformation or corrosion.

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

      Standard Resistance
      for RH
      Tester Connection Condition Specified Condition
      u2-1 (RR-) - uR1-2 (RR-) Always Below 1 Ω
      u2-1 (RR-) - uR1-1 (RR+) Always 10 kΩ or higher
      u2-1 (RR-) or uR1-2 (RR-) - Body ground Always 10 kΩ or higher
      for LH
      Tester Connection Condition Specified Condition
      v2-1 (RL-) - vR1-2 (RL-) Always Below 1 Ω
      v2-1 (RL-) - vR1-1 (RL+) Always 10 kΩ or higher
      v2-1 (RL-) or vR1-2 (RL-) - Body ground Always 10 kΩ or higher

      Note

      Check the speed sensor signal after replacement.

      Click here

      Result
      Proceed to
      OK
      NG

    NG

    REPLACE PARKING BRAKE WIRE ASSEMBLY

    OK

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


    1. Make sure that there is no looseness at the locking part and the connecting part of the connector.

      OK
      The connector is securely connected.

    2. Disconnect the A34 skid control ECU (brake actuator assembly) connector.

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

      OK
      No deformation or corrosion.

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

      Standard Resistance
      for RH
      Tester Connection Condition Specified Condition
      A34-37 (RR-) - uR1-2 (RR-) Always Below 1 Ω
      A34-37 (RR-) or uR1-2 (RR-) - Body ground Always 10 kΩ or higher
      for LH
      Tester Connection Condition Specified Condition
      A34-23 (RL-) - vR1-2 (RL-) Always Below 1 Ω
      A34-23 (RL-) or vR1-2 (RL-) - Body ground Always 10 kΩ or higher
      Result
      Proceed to
      OK
      NG

    OK

    REPLACE BRAKE ACTUATOR ASSEMBLY for LHD: Click here
    REPLACE BRAKE ACTUATOR ASSEMBLY for RHD: Click here

    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR

  14. INSPECT PARKING BRAKE WIRE ASSEMBLY


    1. B006ZA1C16
      *A for RH
      *B for LH
      *a Front view of skid control sensor wire (parking brake wire assembly)
      *b

      Front view of wire harness connector

      (to Sensor Side Connector)
      *c

      Front view of wire harness connector

      (to Vehicle Side Connector)

      Turn the ignition switch off.

    2. Make sure that there is no looseness at the locking part and the connecting part of the connectors.

      OK
      The connector is securely connected.

    3. Remove the skid control sensor wire RH (No. 1 parking brake wire assembly) or the skid control sensor wire LH (No. 2 parking brake wire assembly).

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

      OK
      No deformation or corrosion.

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

      Standard Resistance
      for RH
      Tester Connection Condition Specified Condition
      u2-2 (RR+) - uR1-1 (RR+) Always Below 1 Ω
      u2-2 (RR+) - uR1-2 (RR-) Always 10 kΩ or higher
      u2-2 (RR+) or uR1-1 (RR+) - Body ground Always 10 kΩ or higher
      for LH
      Tester Connection Condition Specified Condition
      v2-2 (RL+) - vR1-1 (RL+) Always Below 1 Ω
      v2-2 (RL+) - vR1-2 (RL-) Always 10 kΩ or higher
      v2-2 (RL+) or vR1-1 (RL+) - Body ground Always 10 kΩ or higher

      Note

      Check the speed sensor signal after replacement.

      Click here

      Result
      Proceed to
      OK
      NG

    NG

    REPLACE PARKING BRAKE WIRE ASSEMBLY

    OK

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


    1. Make sure that there is no looseness at the locking part and the connecting part of the connector.

      OK
      The connector is securely connected.

    2. Disconnect the A34 skid control ECU (brake actuator assembly) connector.

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

      OK
      No deformation or corrosion.

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

      Standard Resistance
      for RH
      Tester Connection Condition Specified Condition
      A34-22 (RR+) - uR1-1 (RR+) Always Below 1 Ω
      A34-22 (RR+) or uR1-1 (RR+) - Body ground Always 10 kΩ or higher
      for LH
      Tester Connection Condition Specified Condition
      A34-39 (RL+) - vR1-1 (RL+) Always Below 1 Ω
      A34-39 (RL+) or vR1-1 (RL+) - Body ground Always 10 kΩ or higher
      Result
      Proceed to
      OK
      NG

    OK

    REPLACE BRAKE ACTUATOR ASSEMBLY for LHD: Click here
    REPLACE BRAKE ACTUATOR ASSEMBLY for RHD: Click here

    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR