DTC C0506-14: Right Front Wheel Speed Sensor Circuit Short to Ground or Open [09/2023 - 12/2023]: Procedure

Pre-procedure1

• Select the line graph display on the GTS.

• Check for any momentary interruption in the wire harness and connector.

  Chassis > Brake/EPB > Data List 

  Tester Display	Measurement Item	Range	Normal Condition	Diagnostic Note
  FR Speed Open	Front speed sensor RH open detection	Normal / Under intermittent	Normal: Normal Under intermittent: Momentary interruption	-
  FR Speed Sensor Voltage Open	Front speed sensor RH voltage open detection	Normal / Under intermittent	Normal: Normal Under intermittent: Momentary interruption	-

  Chassis > Brake/EPB > Data List 

  Tester Display
  FR Speed Open
  FR Speed Sensor Voltage Open

  OK

  Normal (There are no momentary interruptions.)

  NOTE:

  Perform the above inspection before removing the sensor and connector.

  Result

  Proceed to
  OK
  NG

Post-procedure1

• None

Result: 

OK 

USE SIMULATION METHOD TO CHECK. Refer to  HOW TO PROCEED WITH TROUBLESHOOTING [09/2023 - ] 

Result: 

NG 

See step  2

Pre-procedure1

• Turn the ignition switch off.
• Disconnect the B82 and BB2 skid control sensor with suspension control wire RH.

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

  Standard Resistance

  Tester Connection	Condition	Specified Condition	Result
  B82-3 (FR+) - BB2-5 (FR+)	Always	Below 1 Ω	Ω
  B82-3 (FR+) or BB2-5 (FR+) - Body ground and other terminals	Always	10 kΩ or higher	kΩ
  B82-1 (FR-) - BB2-6 (FR-)	Always	Below 1 Ω	Ω
  B82-1 (FR-) or BB2-6 (FR-) - Body ground and other terminals	Always	10 kΩ or higher	kΩ

  Result

  Proceed to
  OK
  NG

Post-procedure1

• None

Result: 

NG 

REPLACE SKID CONTROL SENSOR WITH SUSPENSION CONTROL WIRE RH 

Result: 

OK 

See step  3

Pre-procedure1

• Disconnect the B34 No. 2 skid control ECU (brake actuator assembly) connector.

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

  Standard Resistance

  Tester Connection	Condition	Specified Condition	Result
  BB2-5 (FR+) - B34-7 (FR+)	Always	Below 1 Ω	Ω
  BB2-5 (FR+) or B34-7 (FR+) - Body ground	Always	10 kΩ or higher	kΩ
  BB2-6 (FR-) - B34-6 (FR-)	Always	Below 1 Ω	Ω
  BB2-6 (FR-) or B34-6 (FR-) - Body ground	Always	10 kΩ or higher	kΩ

  Result

  Proceed to
  OK
  NG

Post-procedure1

• None

Result: 

NG 

REPAIR OR REPLACE HARNESS OR CONNECTOR 

Result: 

OK 

See step  4

Pre-procedure1

• Reconnect the B34 No. 2 skid control ECU (brake actuator assembly) connector.
• Reconnect the BB2 skid control sensor with suspension control wire RH connector.
• Turn the ignition switch to ON.

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

  Standard Voltage

  Tester Connection	Condition	Specified Condition	Result
  B82-3 (FR+) - Body ground	Ignition switch ON	11 to 14 V	V

  Result

  Proceed to
  OK
  NG

Post-procedure1

• None

Result: 

OK 

REPLACE FRONT SPEED SENSOR RH. Refer to  REMOVAL [09/2023 - ] 

Result: 

NG 

REPLACE BRAKE ACTUATOR ASSEMBLY. Refer to  REMOVAL [09/2023 - 12/2023]