DTC C0210/33: Rear Speed Sensor RH Circuit; DTC C0215/34: Rear Speed Sensor LH Circuit; DTC C1273/73: Low Output Signal of Rear Speed Sensor RH (Test Mode DTC); DTC C1274/74: Low Output Signal of Rear Speed Sensor LH (Test Mode DTC): Wiring Diagram

1. Using the intelligent tester, check for any momentary interruption in the wire harness and connector corresponding to a DTC (See HOW TO PROCEED WITH TROUBLESHOOTING  ).

ABS / VSC: 

Result 

HINT:

Perform the above inspection before removing the sensor and connector.

B: GO TO STEP  13

C: GO TO STEP  5

A: Go To Next Step 

1. Connect the intelligent tester to the DLC3.
2. Start the engine.
3. Select the Data List mode on the intelligent tester.

   ABS / VSC: 

   ITEM REFERENCE CHART
   
   

   Item (Display)	Measurement Item/Range (Display)	Normal Condition
   RL WHEEL SPD	RL wheel speed sensor reading / min.: 0 mph (0 km/ h), max.: 202 mph (326 km/h)	Actual wheel speed
   RR WHEEL SPD	RR wheel speed sensor reading / min.: 0 mph (0 km/h), max.: 202 mph (326 km/h)	Actual wheel speed

4. Check that there is no difference between the speed value output from the speed sensor displayed on the intelligent tester and the speed value displayed on the speedometer when driving the vehicle.

   OK: The speed value output from the speed sensor displayed on the intelligent tester is the same as the actual vehicle speed. 

   ABS / VSC: 

   ITEM REFERENCE CHART
   
   

   Item (Display)	Measurement Item/Range (Display)	Normal Condition
   RR WHEEL DIR	RR wheel direction / FORWARD or BACK	FORWARD: Forward BACK: Back
   RL WHEEL DIR	RL wheel direction / FORWARD or BACK	FORWARD: Forward BACK: Back

5. Check that the sensor signal conforms to the wheel direction.

   OK: The wheel direction is displayed. 

NG: GO TO STEP  5

OK: Go To Next Step 

1. Perform sensor signal check in TEST MODE PROCEDURE  .

   OK: All Test Mode DTCs are erased. 

NG: GO TO STEP  5

OK: Go To Next Step 

1. Clear the DTC (See DTC CHECK / CLEAR  ).
2. Start the engine.
3. Drive the vehicle at the speed of 20 mph (32 km/h) or more for at least 60 seconds.
4. Check if the same DTC is recorded (See DTC CHECK / CLEAR  ).

Result 

HINT:

If troubleshooting has been carried out according to the Problem Symptoms Table, refer back to the table and proceed to the next step (See PROBLEM SYMPTOMS TABLE  ).

B: GO TO STEP  11

OK: USE SIMULATION METHOD TO CHECK 

1. Turn the engine switch off.
2. Check the speed sensor installation.

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

   The installation bolt is tightened properly. 

   Torque: 

   8.5 N*m (87 kgf*cm, 75 in.*lbf) 

   NOTE: Check the speed sensor signal after replacement (See TEST MODE PROCEDURE  ).

Fig 2: Checking Rear Speed Sensor Installation

Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

NG: INSTALL REAR SPEED SENSOR CORRECTLY 

OK: Go To Next Step 

1. Remove the REAR SPEED SENSOR  .
2. Check the speed sensor tip.

   OK: No scratches or foreign matter on the sensor tip. 

   NOTE: Check the speed sensor signal after cleaning/ replacement (See TEST MODE PROCEDURE  ).

NG: CLEAN OR REPLACE REAR SPEED SENSOR 

OK: Go To Next Step 

1. Install the rear speed sensor.
2. Disconnect the skid control sensor wire.
3. Measure the resistance according to the value(s) in the table below.

Standard resistance: 

RH 

LH 

Fig 3: Identifying Connector Terminals Skid Control Sensor

Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

NG: REPLACE SKID CONTROL SENSOR WIRE 

OK: Go To Next Step 

1. Reconnect the skid control sensor wire.
2. Disconnect the skid control ECU connector and the rear speed sensor connector.
3. Measure the resistance according to the value(s) in the table below.

Standard resistance: 

RH 

LH 

1. NG: REPAIR OR REPLACE HARNESS OR CONNECTOR 
   Fig 4: Identifying Connector Terminals Skid Control ECU - Rear Speed Sensor

   Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
2. OK: Go To Next Step 

1. Reconnect the skid control ECU connector.
2. Turn the engine switch on (IG).
3. Measure the voltage according to the value(s) in the table below.

Standard voltage: 

RH 

LH 

1. NG: REPLACE BRAKE ACTUATOR ASSEMBLY 
   Fig 5: Identifying Connector Terminals Skid Control ECU

   Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
2. OK: Go To Next Step 

1. turn the engine switch off.
2. Reconnect the rear speed sensor connector.
3. Clear the DTC (See DTC CHECK / CLEAR  ).
4. Start the engine.
5. Drive the vehicle at the speed of 20 mph (32 km/h) or more for at least 60 seconds.
6. Check if the same DTC is recorded (See DTC CHECK / CLEAR  ).

Result 

HINT:

If troubleshooting has been carried out according to the Problem Symptoms Table, refer back to the table and proceed to the next step (See PROBLEM SYMPTOMS TABLE  ).

B: USE SIMULATION METHOD TO CHECK 

A: Go To Next Step 

1. Turn the engine switch off.
2. Replace the REAR SPEED SENSOR  .
   NOTE: Check the speed sensor signal after replacement (See TEST MODE PROCEDURE  ).

NEXT: Go To Next Step 

1. Clear the DTC (See DTC CHECK / CLEAR  ).
2. Start the engine.
3. Drive the vehicle at the speed of 20 mph (32 km/h) or more for at least 60 seconds.
4. Check if the same DTC is recorded (See DTC CHECK / CLEAR  ).

Result 

HINT:

If troubleshooting has been carried out according to the Problem Symptoms Table, refer back to the table and proceed to the next step (See PROBLEM SYMPTOMS TABLE  ).

B: END 

A: REPLACE BRAKE ACTUATOR ASSEMBLY 

1. Turn the engine switch off.
2. Repair or replace the harness or connector.
3. Check for any momentary interruption between the skid control ECU and rear speed sensor (See HOW TO PROCEED WITH TROUBLESHOOTING  ).
4. Check that there is no momentary interruption.

NEXT: Go To Next Step 

1. Clear the DTC (See DTC CHECK / CLEAR  ).
2. Start the engine.
3. Drive the vehicle at the speed of 20 mph (32 km/h) or more for at least 60 seconds.
4. Check if the same DTC is recorded (See DTC CHECK / CLEAR  ).

Result 

B: Go to step 2 

A: END