DTC C0200/31, C0205/32, C1271/71, C1272/72: Front Speed Sensor RH Circuit; Front Speed Sensor LH Circuit; Low Output Signal of Front Speed Sensor RH (Test Mode DTC); Low Output Signal of Front Speed Sensor LH (Test Mode DTC): Procedure

1. Using the Techstream, check for any momentary interruptions in the wire 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
   FR Speed Open	FR speed sensor open detection/ERROR or NORMAL	ERROR: Momentary interruption NORMAL: Normal	-
   FL Speed Open	FL speed sensor open detection/ERROR or NORMAL	ERROR: Momentary interruption NORMAL: Normal	-

   Result

   Result	Proceed to
   There are momentary interruptions	A
   There are no momentary interruptions	B
   There is a constant open circuit	C

   HINT: 

   Perform the above inspection before removing the sensor and connector.

C → See step   7 

B → See step   4 

A: Go to next step 

1. Turn the ignition switch off.
2. Repair or replace the harness or connector.
3. Check for any momentary interruptions between the skid control ECU and front speed sensor. Refer to CHECK FOR INTERMITTENT PROBLEMS .
4. Check that there are no momentary interruptions.

NEXT: Go to next step 

1. Turn the ignition switch off.
2. Clear the DTCs. Refer to DTC CHECK/CLEAR .
3. Start the engine.
4. Drive the vehicle at a speed of 40 km/h (25 mph) or more for at least 60 seconds.
5. Check if the same DTC is recorded. Refer to DTC CHECK/CLEAR .

   Result

   Result	Proceed to
   DTCs (C0200/31 and/or C0205/32) are output	A
   DTCs (C0200/31 and C0205/32) 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. Turn the ignition switch off.
2. Connect the Techstream to the DLC3.
3. Start the engine.
4. Select Data List mode on the Techstream. Refer to DATA LIST/ACTIVE TEST .
   ABS/VSC/TRAC
   
   

   Tester Display	Measurement Item/Range	Normal Condition	Diagnostic Note
   FR Wheel Speed	FR wheel speed sensor reading/min.: 0 km/h (0 mph), max.: 326.4 km/h (202 mph)	Actual wheel speed	Similar speed as indicated on speedometer
   FL Wheel Speed	FL wheel speed sensor reading/min.: 0 km/h (0 mph), max.: 326.4 km/h (202 mph)	Actual wheel speed	Similar speed as indicated on speedometer

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

   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. Refer to ON-VEHICLE INSPECTION .

   OK

   The speed value output from the speed sensor displayed on the Techstream is the same as the actual vehicle speed measured using a speedometer tester (calibrated chassis dynamometer).

NG → See step   7 

OK: Go to next step 

1. Turn the ignition switch off.
2. Perform the sensor check in the Test Mode procedure. Refer to TEST MODE PROCEDURE .

   OK

   All Test Mode DTCs are cleared.

NG → See step   7 

OK: Go to next step 

1. Turn the ignition switch off.
2. Clear the DTCs. Refer to DTC CHECK/CLEAR .
3. Start the engine.
4. Drive the vehicle at a speed of 40 km/h (25 mph) or more for at least 60 seconds.
5. Check if the same DTC is recorded. Refer to DTC CHECK/CLEAR .

   Result

   Result	Proceed to
   DTCs (C0200/31 and C0205/32) are not output	A
   DTCs (C0200/31 and/or C0205/32) 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   13 

A → See step   17 

1. Turn the ignition switch off.
   Fig 1: Identifying Clearance Between Sensor And Front Steering Knuckle

   Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
2. Check the speed sensor installation.

   OK

   There is no clearance between the sensor and the front steering knuckle.

   The installation nut is tightened properly.

   Torque 

   8.5 N*m (87 kgf*cm, 75 in.*lbf)

NG → See step   18 

OK: Go to next step 

1. Remove the front speed sensor. Refer to REMOVAL .
2. Check the speed sensor tip.

   OK

   No scratches or foreign matter on the sensor tip.

   NOTE: Check the speed sensor signal after cleaning or replacement. Refer to TEST MODE PROCEDURE .

NG → CLEAN OR REPLACE FRONT SPEED SENSOR 

OK: Go to next step 

1. Install the front speed sensor.
   Fig 2: Measuring Front Speed Sensor Resistance

   Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
2. Make sure that there is no looseness at the locking part and the connecting part of the connectors.
3. Disconnect the front speed sensor 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
   2 (FR+) - Body ground	Always	10 kΩ or higher
   1 (FR-) - Body ground	Always	10 kΩ or higher

   Tester Connection	Condition	Specified Condition
   2 (FL+) - Body ground	Always	10 kΩ or higher
   1 (FL-) - Body ground	Always	10 kΩ or higher

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

NG → See step   19 

OK: Go to next step 

1. Disconnect the skid control ECU connector.
   Fig 3: Identifying Skid Control ECU And Front Speed Sensor Connector Terminals

   Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
2. Measure the resistance according to the value(s) in the table below.

   Standard Resistance

   for RH 

   for LH 

   Tester Connection	Condition	Specified Condition
   A39-7 (FR+) - A21-2 (FR+)	Always	Below 1 Ω
   A39-7 (FR+) - Body ground	Always	10 kΩ or higher
   A39-6 (FR-) - A21-1 (FR-)	Always	Below 1 Ω
   A39-6 (FR-) - Body ground	Always	10 kΩ or higher

   Tester Connection	Condition	Specified Condition
   A39-19 (FL+) - A22-2 (FL+)	Always	Below 1 Ω
   A39-19 (FL+) - Body ground	Always	10 kΩ or higher
   A39-18 (FL-) - A22-1 (FL-)	Always	Below 1 Ω
   A39-18 (FL-) - Body ground	Always	10 kΩ or higher

NG → REPAIR OR REPLACE HARNESS OR CONNECTOR 

OK: Go to next step 

1. Reconnect the skid control ECU connector.
   Fig 4: Identifying Front Speed Sensor Connector Terminals

   Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
2. Turn the ignition switch to ON.
3. Measure the voltage according to the value(s) in the table below.

   Standard Voltage

   for RH 

   for LH 

   Tester Connection	Switch Condition	Specified Condition
   A21-2 (FR+) - Body ground	Ignition switch ON	8 to 14 V

   Tester Connection	Switch Condition	Specified Condition
   A22-2 (FL+) - Body ground	Ignition switch ON	8 to 14 V

NG → See step   20 

OK: Go to next step 

1. Turn the ignition switch off.
2. Reconnect the front speed sensor connector.
3. Clear the DTCs. Refer to DTC CHECK/CLEAR .
4. Start the engine.
5. Drive the vehicle at a speed of 40 km/h (25 mph) or more for at least 60 seconds.
6. Check if the same DTC is recorded. Refer to DTC CHECK/CLEAR .

   Result

   Result	Proceed to
   DTCs (C0200/31 and/or C0205/32) are output	A
   DTCs (C0200/31 and C0205/32) 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   17 

A: Go to next step 

1. Turn the ignition switch off.
2. Replace the front 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 DTCs. Refer to DTC CHECK/CLEAR .
2. Start the engine.
3. Drive the vehicle at a speed of 40 km/h (25 mph) or more for at least 60 seconds.
4. Check if the same DTC is recorded. Refer to DTC CHECK/CLEAR .

   Result

   Result	Proceed to
   DTCs (C0200/31 and/or C0205/32) are output	A
   DTCs (C0200/31 and C0205/32) 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. Turn the ignition switch off.
2. Remove the front drive shaft assembly. Refer to REMOVAL for 2AZ-FE or REMOVAL for 2ZR-FE.
3. Replace the front axle outboard joint shaft assembly (front speed sensor rotor). Refer to DISASSEMBLY for 2AZ-FE or DISASSEMBLY for 2ZR-FE.

   HINT: 

   If the front speed sensor rotor needs to be replaced, replace it together with the front axle outboard joint shaft assembly.

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

NEXT: Go to next step 

1. Install the front drive shaft assembly.
2. Clear the DTCs. Refer to DTC CHECK/CLEAR .
3. Start the engine.
4. Drive the vehicle at a speed of 40 km/h (25 mph) or more for at least 60 seconds.
5. Check if the same DTC is recorded. Refer to DTC CHECK/CLEAR .

   Result

   Result	Proceed to
   DTCs (C0200/31 and C0205/32) are not output	A
   DTCs (C0200/31 and/or C0205/32) 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   20 

A → END