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): Procedure

1. Using the Techstream, check for any momentary interruption in the harness and connector corresponding to a DTC. Refer to CHECK FOR INTERMITTENT PROBLEMS .
   ABS/VSC/TRAC:
   
   

   Tester Display	Measurement Item/Range	Normal Condition	Diagnostic Note
   RR Speed Open	Rear speed sensor RH open detection / Error or Normal	Error: Momentary interruption Normal: Normal	-
   RL Speed Open	Rear speed sensor LH open detection / Error or Normal	Error: Momentary interruption Normal: Normal	-

   OK

   There are no momentary interruptions.

   HINT: 

   Perform the above inspection before removing the sensor and connector.

NG → REPAIR OR REPLACE HARNESS OR CONNECTOR (SPEED SENSOR CIRCUIT) 

OK: Go to next step 

1. Connect the Techstream to the DLC3.
2. Turn the power switch ON (READY).
3. Select the Data List mode on the Techstream.
4. Check that the speed value output from the speed sensor displayed on the Techstream and the speed value displayed on the speedometer are almost the same when driving the vehicle.

   OK

   The speed value output from the speed sensor displayed on the Techstream is the same as the actual vehicle speed.

   ABS/VSC/TRAC:
   
   

   Tester Display	Measurement Item/Range	Normal Condition	Diagnostic Note
   RR Wheel Speed	Rear wheel speed sensor RH reading / min.: 0 km/h (0 mph), max.: 326 km/h (202 mph)	Actual wheel speed	Similar speed as indicated on speedometer
   RL Wheel Speed	Rear wheel speed sensor LH reading / min.: 0 km/h (0 mph), max.: 326 km/h (202 mph)	Actual wheel speed	Similar speed as indicated on speedometer

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

   OK

   The wheel direction is displayed.

   ABS/VSC/TRAC:
   
   

   Tester Display	Measurement Item/Range	Normal Condition	Diagnostic Note
   RR Wheel Direction	Rear wheel RH direction / Forward or Back	Forward: Forward Back: Back	-
   RL Wheel Direction	Rear wheel LH direction / Forward or Back	Forward: Forward Back: Back	-

NG → See step   5 

OK: Go to next step 

1. Clear the DTC. Refer to DTC CHECK / CLEAR .
2. Perform sensor signal check in "TEST MODE PROCEDURE". Refer to TEST MODE PROCEDURE .

   OK

   All Test Mode DTCs are erased.

NG → See step   5 

OK: Go to next step 

1. Clear the DTC. Refer to DTC CHECK / CLEAR .
2. Turn the power switch ON (READY).
3. Drive the vehicle at a speed of 32 km/h (20 mph) or more for 60 seconds or more.
4. Check if the same DTCs are recorded. Refer to DTC CHECK / CLEAR .
   RESULT
   
   

   Result	Proceed to
   DTCs (C0210/33 and C0215/34) are not output	A
   DTCs (C0210/33 and C0215/34) are output	B

   HINT: 

   If troubleshooting has been carried out according to the "PROBLEM SYMPTOMS TABLE", refer back to the table and proceed to the next step. Refer to PROBLEM SYMPTOMS TABLE .

B → See step   11 

A → See step   19 

1. Check the sensor installation. Refer to INSTALLATION .
   Fig 1: Identifying Proper Sensor Installation

   Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

   OK

   There is no clearance between the sensor and the rear axle carrier and the installation bolt is tightened properly.

   NOTE:

   Check the speed sensor signal after reinstallation. Refer to TEST MODE PROCEDURE .

NG → See step   14 

OK: Go to next step 

1. Remove the rear speed sensor.
2. Check the sensor tip.

   OK

   No scratches or foreign matter on the sensor tip.

   NOTE:

   Check the speed sensor signal after cleaning/replacement. Refer to TEST MODE PROCEDURE .

NG → See step   15 

OK: Go to next step 

1. Disconnect the rear speed sensor wire RH connectors (vehicle side: R56, sensor side: A).
   Fig 2: Identifying Rear Speed Sensor Wire Connectors R56 And S91

   Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
2. Disconnect the rear speed sensor wire LH connectors (vehicle side: S91, sensor side: A).
3. Measure the resistance according to the value(s) in the table below.

   Standard resistance

   for RH 

   for LH 

   Tester Connection	Condition	Specified Condition
   "A"-2 (RR+) - R56-3	Always	Below 1 Ω
   "A"-2 (RR+) - R56-4	Always	10 kΩ or higher
   "A"-2 (RR+) - Body ground	Always	10 kΩ or higher
   "A"-1 (RR-) - R56-4	Always	Below 1 Ω
   "A"-1 (RR-) - R56-3	Always	10 kΩ or higher
   "A"-1 (RR-) - Body ground	Always	10 kΩ or higher

   Tester Connection	Condition	Specified Condition
   "A"-2 (RL+) - S91-3	Always	Below 1 Ω
   "A"-2 (RL+) - S91-4	Always	10 kΩ or higher
   "A"-2 (RL+) - Body ground	Always	10 kΩ or higher
   "A"-1 (RL-) - S91-4	Always	Below 1 Ω
   "A"-1 (RL-) - S91-3	Always	10 kΩ or higher
   "A"-1 (RL-) - Body ground	Always	10 kΩ or higher

   NOTE:

   Check the speed sensor signal after replacement. Refer to TEST MODE PROCEDURE .

NG → See step   16 

OK: Go to next step 

1. Disconnect the A19 and A21 ECU connectors.
2. Disconnect the R56 sensor wire connector.
3. Disconnect the S91 sensor wire connector.
4. Measure the resistance according to the value(s) in the table below.

   Standard resistance

   for RH 

   for LH 

   Tester Connection	Condition	Specified Condition
   A21-11 (RR+) - R56-3	Always	Below 1 Ω
   A21-10 (RR-) - R56-4	Always	Below 1 Ω
   A21-11 (RR+) - Body ground	Always	10 kΩ or higher
   A21-10 (RR-) - Body ground	Always	10 kΩ or higher

   Tester Connection	Condition	Specified Condition
   A19-11 (RL+) - S91-3	Always	Below 1 Ω
   A19-10 (RL-) - S91-4	Always	Below 1 Ω
   A19-11 (RL+) - Body ground	Always	10 kΩ or higher
   A19-10 (RL-) - Body ground	Always	10 kΩ or higher

NG → REPAIR OR REPLACE HARNESS OR CONNECTOR 

OK: Go to next step 

1. Reconnect the A19 and A21 ECU connectors.
   Fig 3: Identifying Rear Speed Sensor Wire Connectors R56 And S91

   Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
2. Disconnect the R56 sensor wire connector.
3. Disconnect the S91 sensor wire connector.
4. Turn the power switch ON (IG).
5. Measure the voltage according to the value(s) in the table below.

   Standard voltage

   Tester Connection	Switch Condition	Specified Condition
   R56-3 - Body ground	Power switch ON (IG)	6.7 to 14 V
   S91-3 - Body ground	Power switch ON (IG)	6.7 to 14 V

NG → See step   17 

OK: Go to next step 

1. Clear the DTC. Refer to DTC CHECK / CLEAR .
2. Turn the power switch ON (READY).
3. Drive the vehicle at a speed of 32 km/h (20 mph) or more for 60 seconds or more.
4. Check if the same DTCs are recorded. Refer to DTC CHECK / CLEAR .

   HINT: 

   Reinstall the sensors, connectors, etc. and restore the vehicle to its prior condition before rechecking for DTCs.

   RESULT
   
   

   Result	Proceed to
   DTCs (C0210/33 and C0215/34) are output	A
   DTCs (C0210/33 and C0215/34) are not output	B

   HINT: 

   If troubleshooting has been carried out according to the "PROBLEM SYMPTOMS TABLE", refer back to the table and proceed to the next step. Refer to PROBLEM SYMPTOMS TABLE .

B → See step   19 

A: Go to next step 

1. Replace the rear speed sensor. Refer to REMOVAL .
   NOTE:

   Check the speed sensor signal after replacement. Refer to TEST MODE PROCEDURE .

NEXT: Go to next step 

1. Clear the DTC. Refer to DTC CHECK / CLEAR .
2. Turn the power switch ON (READY).
3. Drive the vehicle at a speed of 32 km/h (20 mph) or more for 60 seconds or more.
4. Check if the same DTCs are recorded. Refer to DTC CHECK / CLEAR .

   HINT: 

   Reinstall the sensors, connectors, etc. and restore the vehicle to its prior condition before rechecking for DTCs.

   RESULT
   
   

   Result	Proceed to
   DTCs (C0210/33 and C0215/34) are output	A
   DTCs (C0210/33 and C0215/34) are not output	B

   HINT: 

   If troubleshooting has been carried out according to the "PROBLEM SYMPTOMS TABLE", refer back to the table and proceed to the next step. Refer to PROBLEM SYMPTOMS TABLE .

B → END 

A: Go to next step 

1. Remove the rear axle hub and bearing (speed sensor rotor). Refer to REMOVAL .
2. Check the sensor rotor.

   OK

   No scratches, oil, or foreign matter on the rotor.

   HINT: 

   If the sensor rotor is damaged, replace the rear axle hub and bearing assembly.

   NOTE:

   • Do not use any kind of cleaner when cleaning the speed sensor rotor.
   • Check the speed sensor signal after cleaning/replacement. Refer to TEST MODE PROCEDURE .

NG → See step   18 

OK → See step   17