C1333

BRAKE CONTROL / DYNAMIC CONTROL SYSTEMS: VEHICLE STABILITY CONTROL SYSTEM: C0210/33,C0215/34,C1273/73,C1274/74,C1332/38,C1333/39: Rear Speed Sensor RH Circuit
C1333/39 - Left Rear Speed Sensor Circuit

DESCRIPTION

The speed sensor detects the wheel speed and sends the appropriate signals to the skid control ECU. These signals are used for the ABS control system.

Speed sensor rotors have rows of alternating N and S magnetic poles (for 2WD) or 48 serrations (for AWD). The hall IC type speed sensor use the frequency of output pulses to detect the vehicle speed. Because the sensor outputs digital pulses, it can detect vehicle speeds even when the vehicle is nearly stationary.

DTCs C1273/73 and C1274/74 will be cleared when the speed sensor sends a vehicle speed signal or when Test Mode ends. DTCs C1273/73 and C1274/74 are output only in Test Mode.

HINT
* DTCs C0210/33, C1273/73 and C1332/38 are for the rear speed sensor RH.
* DTCs C0215/34, C1274/74 and C1333/39 are for the rear speed sensor LH.

WIRING DIAGRAM

INSPECTION PROCEDURE

PROCEDURE

1. READ VALUE USING TECHSTREAM (REAR SPEED SENSOR)

(a) Connect the Techstream to the DLC3.

(b) Start the engine.

(c) Select the Data List on the Techstream Data List / Active Test.

ABS/VSC/TRAC

ABS/VSC/TRAC:

(d) Check that the speed value output from the speed sensor displayed on the Techstream.

HINT
Factors that affect the indicated vehicle speed include tire size, tire inflation, and tire wear. The speed indicated on the speedometer has an allowable margin of error. This can be tested using a speedometer tester (calibrated chassis dynamometer). For details about testing and the margin of error, see the reference chart On-Vehicle inspection.

OK:

The speed value output from the speed sensor displayed on the Techstream is the similar speed as indicated on the speedometer.

Result:

C -- CHECK REAR SPEED SENSOR INSTALLATION

B -- CHECK REAR SPEED SENSOR INSTALLATION
A -- Continue to next step.

2. PERFORM TEST MODE INSPECTION (SIGNAL CHECK)

(a) Turn the ignition switch off.

(b) Perform sensor check in Test Mode Procedure Test Mode Procedure.

OK:

All Test Mode DTCs are not output.

Result:

C -- CHECK REAR SPEED SENSOR INSTALLATION

B -- CHECK REAR SPEED SENSOR INSTALLATION
A -- Continue to next step.

3. RECONFIRM DTC

(a) Turn the ignition switch off.

(b) Clear the DTCs Reading and Clearing Diagnostic Trouble Codes.

(c) Start the engine.

(d) Drive the vehicle at a speed of 45 km/h (28 mph) or more for at least 60 seconds.

(e) Check if the same DTC is recorded Reading and Clearing Diagnostic Trouble Codes.

Result:

HINT
If troubleshooting has been carried out according to Problem Symptoms Table, refer back to the table and proceed to the next step Problem Symptoms Table.

C -- REPLACE REAR SPEED SENSOR

B -- REPLACE REAR SPEED SENSOR AND REAR SPEED SENSOR ROTOR

A -- CHECK FOR INTERMITTENT PROBLEMS How To Proceed With Troubleshooting

4. CHECK REAR SPEED SENSOR INSTALLATION

(a) Turn the ignition switch off.

(b) Check the speed sensor installation.

OK:

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

NG -- INSTALL REAR SPEED SENSOR CORRECTLY Installation
OK -- Continue to next step.

5. CHECK HARNESS AND CONNECTOR (SKID CONTROL SENSOR WIRE)

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

(b) Disconnect the skid control sensor wire.

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

Standard Resistance:

for RH
for LH

Text in Illustration

Text in Illustration:

NOTICE:
Check the speed sensor signal after replacement Test Mode Procedure.

NG -- REPLACE SKID CONTROL SENSOR WIRE Removal
OK -- Continue to next step.

6. CHECK HARNESS AND CONNECTOR (SKID CONTROL ECU - REAR SPEED SENSOR)

(a) Reconnect the skid control sensor wire.

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

(c) Disconnect the skid control ECU connector and the rear speed sensor connector.

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

Standard Resistance:

for RH
for LH

Text in Illustration

Text in Illustration:

NG -- REPAIR OR REPLACE HARNESS OR CONNECTOR
OK -- Continue to next step.

7. RECONFIRM DTC

(a) Reconnect the skid control ECU connector and the rear speed sensor connector.

(b) Clear the DTCs Reading and Clearing Diagnostic Trouble Codes.

(c) Start the engine.

(d) Drive the vehicle at a speed of 45 km/h (28 mph) or more for at least 60 seconds.

(e) Check if the same DTC is recorded Reading and Clearing Diagnostic Trouble Codes.

Result:

HINT
If troubleshooting has been carried out according to Problem Symptoms Table, refer back to the table and proceed to the next step Problem Symptoms Table.

B -- CHECK FOR INTERMITTENT PROBLEMS How To Proceed With Troubleshooting
A -- Continue to next step.

8. REPLACE REAR SPEED SENSOR AND REAR SPEED SENSOR ROTOR

(a) Turn the ignition switch off.

(b) Replace the rear speed sensor and the rear axle hub and bearing assembly (rear speed sensor rotor) Removal.

HINT
The rear speed sensor rotor is incorporated into the rear axle hub and bearing assembly.

If the rear speed sensor rotor needs to be replaced, replace it together with the rear axle hub and bearing assembly with the rear speed sensor.

NOTICE:
Check the speed sensor signal after replacement Test Mode Procedure.

NEXT -- Continue to next step.

9. RECONFIRM DTC

(a) Clear the DTCs Reading and Clearing Diagnostic Trouble Codes.

(b) Start the engine.

(c) Drive the vehicle at a speed of 45 km/h (28 mph) or more for at least 60 seconds.

(d) Check if the same DTC is recorded Reading and Clearing Diagnostic Trouble Codes.

Result:

(b) Check the speed sensor installation.

OK:

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

The installation bolt is tightened properly.

Torque
8.0 N*m (82 kgf*cm, 71 in.*lbf)

NG -- INSTALL REAR SPEED SENSOR CORRECTLY Installation
OK -- Continue to next step.

11. CHECK REAR SPEED SENSOR TIP

(a) Remove the rear speed sensor Removal.

(b) Check the speed sensor tip.

OK:

No scratches, oil, or foreign matter on the sensor tip.

NOTICE:
Check the speed sensor signal after cleaning or replacement Test Mode Procedure.

NG -- CLEAN OR REPLACE REAR SPEED SENSOR
OK -- Continue to next step.

12. CHECK HARNESS AND CONNECTOR (SKID CONTROL ECU - REAR SPEED SENSOR)

(a) Install the rear speed sensor.

Text in Illustration

Text in Illustration:

NG -- REPAIR OR REPLACE HARNESS OR CONNECTOR
OK -- Continue to next step.

13. RECONFIRM DTC

(a) Reconnect the skid control ECU connector and the rear speed sensor connector.

(b) Clear the DTCs Reading and Clearing Diagnostic Trouble Codes.

(c) Start the engine.

(d) Drive the vehicle at a speed of 45 km/h (28 mph) or more for at least 60 seconds.

(e) Check if the same DTC is recorded Reading and Clearing Diagnostic Trouble Codes.

Result:

HINT
If troubleshooting has been carried out according to Problem Symptoms Table, refer back to the table and proceed to the next step Problem Symptoms Table.

B -- END
A -- Continue to next step.

16. REPLACE REAR SPEED SENSOR ROTOR

(a) Turn the ignition switch off.

(b) Remove the rear drive shaft assembly Removal.

(c) Replace the rear drive outboard joint shaft assembly (rear speed sensor rotor) Disassembly.

HINT
If the rear speed sensor rotor needs to be replaced, replace it together with the rear drive outboard joint shaft assembly.

NOTICE:
Check the speed sensor signal after replacement Test Mode Procedure.

NEXT -- Continue to next step.

17. RECONFIRM DTC

(a) Install the rear drive shaft assembly.

(b) Clear the DTCs Reading and Clearing Diagnostic Trouble Codes.

(c) Start the engine.

(d) Drive the vehicle at a speed of 45 km/h (28 mph) or more for at least 60 seconds.

(e) Check if the same DTC is recorded Reading and Clearing Diagnostic Trouble Codes.

Result: