DTC C0512-14: Right Rear Wheel Speed Sensor Circuit Short to Ground or Open [10/2022 - ]: Procedure

Pre-procedure1

• Select the line graph display on the GTS.

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

  HINT: 

  Refer to DATA LIST / ACTIVE TEST [10/2022 - ]

  Chassis > Brake/EPB > Data List 

  Tester Display	Measurement Item	Range	Normal Condition	Diagnostic Note
  RR Speed Open	Rear skid control sensor RH open detection	Normal / Under intermittent	Normal: Normal Under intermittent: Momentary interruption	-
  RR Speed Sensor Voltage Open	Rear skid control sensor RH voltage open detection	Normal / Under intermittent	Normal: Normal Under intermittent: Momentary interruption	-

  Chassis > Brake/EPB > Data List 

  Tester Display
  RR Speed Open
  RR 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 [10/2022 - ] 

Result: 

NG 

See step  2

1. Check the vehicle specification.

   Result

   Result	Proceed to
   for 2WD	A
   for AWD	B

Result: 

B 

See step  6

Result: 

A 

See step  3

Pre-procedure1

• Turn the ignition switch off.

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

  OK

  The connector is securely connected.

Pre-procedure2

• Disconnect the hH1 rear skid control sensor wire RH (No. 1 parking brake wire assembly) connector.
• Disconnect the h3 rear skid control sensor RH connector.

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

  OK

  No deformation or corrosion.

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

  Standard Resistance

  Tester Connection	Condition	Specified Condition	Result
  h3-2 (WSS+) - hH1-4 (RR+)	Always	Below 1 Ω	Ω
  h3-2 (WSS+) or hH1-4 (RR+) - Body ground and other terminals	Always	10 kΩ or higher	kΩ
  h3-1 (WSS-) - hH1-3 (RR-)	Always	Below 1 Ω	Ω
  h3-1 (WSS-) or hH1-3 (RR-) - Body ground and other terminals	Always	10 kΩ or higher	kΩ

  Result

  Proceed to
  OK
  NG

Post-procedure1

• None

Result: 

NG 

REPLACE NO. 1 PARKING BRAKE WIRE ASSEMBLY 

Result: 

OK 

See step  4

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

  OK

  The connector is securely connected.

Pre-procedure1

• Disconnect the A31 skid control ECU (brake actuator assembly) connector.

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

  OK

  No deformation or corrosion.

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

  Standard Resistance

  Tester Connection	Condition	Specified Condition	Result
  hH1-4 (RR+) - A31-20 (RR+)	Always	Below 1 Ω	Ω
  hH1-4 (RR+) or A31-20 (RR+) - Body ground	Always	10 kΩ or higher	kΩ
  hH1-3 (RR-) - A31-19 (RR-)	Always	Below 1 Ω	Ω
  hH1-3 (RR-) or A31-19 (RR-) - 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  5

Pre-procedure1

• Reconnect the A31 skid control ECU (brake actuator assembly) connector.
• Reconnect the hH1 rear skid control sensor wire RH (No. 1 parking brake wire assembly) connector.

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

  OK

  The connector is securely connected.

Pre-procedure2

• 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
  h3-2 (WSS+) - Body ground	Ignition switch ON	11 to 14 V	V

  Result

  Proceed to
  OK
  NG

Post-procedure1

• None

Result: 

OK 

REPLACE REAR AXLE HUB AND BEARING ASSEMBLY RH. Refer to  REMOVAL [10/2022 - 08/2023]  , or refer to  REMOVAL [08/2023 - ] 

Result: 

NG 

REPLACE BRAKE ACTUATOR ASSEMBLY. Refer to  REMOVAL [10/2022 - ] 

Pre-procedure1

• Turn the ignition switch off.

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

  OK

  The connector is securely connected.

Pre-procedure2

• Disconnect the hH1 rear skid control sensor wire RH (No. 1 parking brake wire assembly) connector.
• Disconnect the h3 rear skid control sensor RH connector.

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

  OK

  No deformation or corrosion.

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

  Standard Resistance

  Tester Connection	Condition	Specified Condition	Result
  h3-1 (WSS+) - hH1-4 (RR+)	Always	Below 1 Ω	Ω
  h3-1 (WSS+) or hH1-4 (RR+) - Body ground and other terminals	Always	10 kΩ or higher	kΩ
  h3-2 (WSS-) - hH1-3 (RR-)	Always	Below 1 Ω	Ω
  h3-2 (WSS-) or hH1-3 (RR-) - Body ground and other terminals	Always	10 kΩ or higher	kΩ

  Result

  Proceed to
  OK
  NG

Post-procedure1

• None

Result: 

NG 

REPLACE NO. 1 PARKING BRAKE WIRE ASSEMBLY 

Result: 

OK 

See step  7

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

  OK

  The connector is securely connected.

Pre-procedure1

• Disconnect the A31 skid control ECU (brake actuator assembly) connector.

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

  OK

  No deformation or corrosion.

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

  Standard Resistance

  Tester Connection	Condition	Specified Condition	Result
  hH1-4 (RR+) - A31-20 (RR+)	Always	Below 1 Ω	Ω
  hH1-4 (RR+) or A31-20 (RR+) - Body ground	Always	10 kΩ or higher	kΩ
  hH1-3 (RR-) - A31-19 (RR-)	Always	Below 1 Ω	Ω
  hH1-3 (RR-) or A31-19 (RR-) - 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  8

Pre-procedure1

• Reconnect the A31 skid control ECU (brake actuator assembly) connector.
• Reconnect the hH1 rear skid control sensor wire RH (No. 1 parking brake wire assembly) connector.

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

  OK

  The connector is securely connected.

Pre-procedure2

• 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
  h3-1 (WSS+) - Body ground	Ignition switch ON	11 to 14 V	V

  Result

  Proceed to
  OK
  NG

Post-procedure1

• None

Result: 

OK 

REPLACE REAR SKID CONTROL SENSOR RH. Refer to  REMOVAL [10/2022 - ] 

Result: 

NG 

REPLACE BRAKE ACTUATOR ASSEMBLY. Refer to  REMOVAL [10/2022 - ]