DTC C1415: Rear Speed Sensor RH Circuit Output; DTC C1416: Rear Speed Sensor LH Circuit Output [10/2016 - 10/2017]: Procedure

1. Using the Techstream, check for any momentary interruption in the wire harness and connector corresponding to a DTC.

   Refer to CHECK FOR INTERMITTENT PROBLEMS [10/2016 - 09/2020]

   Chassis > ABS/VSC/TRAC > Data List 

   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	-

   Chassis > ABS/VSC/TRAC > Data List 

   Tester Display
   RR Speed Open
   RL Speed Open

   OK

   There are no momentary interruptions.

   HINT: 

   Perform the above inspection before removing the sensor and connector.

   Result

   Proceed to
   OK
   NG

Result: 

NG 

See step  4

Result: 

OK 

See step  2

1. Turn the engine switch off.
2. Connect the Techstream to the DLC3.
3. Start the engine.
4. Select the Data List using the Techstream.

   Refer to DATA LIST / ACTIVE TEST [10/2016 - 09/2020]

   Chassis > ABS/VSC/TRAC > Data List 

   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)	Vehicle stopped: 0 km/h (0 mph)	When driving at constant speed: No large fluctuations
   RL Wheel Speed	Rear wheel speed sensor LH reading	Min.: 0 km/h (0 mph), Max.: 326 km/h (202 mph)	Vehicle stopped: 0 km/h (0 mph)	When driving at constant speed: No large fluctuations

   Chassis > ABS/VSC/TRAC > Data List 

   Tester Display
   RR Wheel Speed
   RL Wheel Speed

5. Check the speed value output from the speed sensor displayed on the Techstream.

   HINT: 

   Factors that affect the indicated vehicle speed include tire size, tire pressure, 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 [10/2016 - 09/2020]

   OK

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

   Result

   Proceed to
   OK
   NG

Result: 

NG 

See step  4

Result: 

OK 

See step  3

1. Turn the engine switch off.
2. Clear the DTCs.

   Refer to DTC CHECK / CLEAR [10/2016 - 09/2020]

   Chassis > ABS/VSC/TRAC > Clear DTCs 

3. Turn the engine switch off.
4. Start the engine.
5. Perform a road test.
6. Check if the same DTC is output.

   Refer to DTC CHECK / CLEAR [10/2016 - 09/2020]

   Chassis > ABS/VSC/TRAC > Trouble Codes 

   Result

   Result	Proceed to
   DTCs C1415 and C1416 are not output.	A
   DTCs C1415 and/or C1416 are output.	B

   HINT: 

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

   Refer to PROBLEM SYMPTOMS TABLE [10/2016 - 09/2020]

Result: 

A 

USE SIMULATION METHOD TO CHECK. Refer to  HOW TO PROCEED WITH TROUBLESHOOTING [10/2016 - 10/2017] 

Result: 

B 

REPLACE BRAKE ACTUATOR ASSEMBLY. Refer to  REMOVAL [10/2016 - 09/2020] 

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

   Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

   *1	Rear Speed Sensor
   *a	Correct
   *b	Incorrect
   *c	8.5 Nm
   *d	No clearance

   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)

   Result

   Proceed to
   OK
   NG

Result: 

NG 

INSTALL REAR SPEED SENSOR CORRECTLY. Refer to  INSTALLATION [08/2015 - 09/2020] 

Result: 

OK 

See step  5

1. Remove the rear speed sensor and the component with the sensor rotor.

   for speed sensor: Refer to REMOVAL [08/2015 - 09/2020]

   for sensor rotor: Refer to REMOVAL [04/2013 - 09/2020]

2. Check the speed sensor tip and speed sensor rotor.

   OK

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

   NOTE:

   • If no damage to the speed sensor tip is found during this inspection, do not replace the speed sensor.

     If there are any ferrous metal filings stuck to the rotor, this will result in a malfunction, so confirm that the rotor is not contaminated with foreign matter before replacing the sensor.

   • Check the speed sensor signal after cleaning or replacement.

     Refer to TEST MODE PROCEDURE [10/2016 - 09/2020]

   Result

   Proceed to
   OK
   NG

Result: 

NG 

CLEAN OR REPLACE REAR SPEED SENSOR OR COMPONENT WITH SENSOR ROTOR 

Result: 

OK 

See step  6

1. Make sure that there is no looseness at the locking part and the connecting part of the connector.
2. Disconnect the A100 skid control ECU (brake actuator assembly) connector.
3. Disconnect the P19 or Q28 rear speed sensor connector.
4. Measure the resistance according to the value(s) in the table below.

   Standard Resistance

   FOR RH
   
   

   Tester Connection	Condition	Specified Condition
   A100-16 (RR+) - P19-1 (RR+)	Always	Below 1 Ω
   A100-16 (RR+) - Body ground	Always	10 kΩ or higher
   P19-1 (RR+) - Body ground	Always	10 kΩ or higher
   A100-15 (RR-) - P19-2 (RR-)	Always	Below 1 Ω
   A100-15 (RR-) - Body ground	Always	10 kΩ or higher
   P19-2 (RR-) - Body ground	Always	10 kΩ or higher

   FOR LH
   
   

   Tester Connection	Condition	Specified Condition
   A100-29 (RL+) - Q28-1 (RL+)	Always	Below 1 Ω
   A100-29 (RL+) - Body ground	Always	10 kΩ or higher
   Q28-1 (RL+) - Body ground	Always	10 kΩ or higher
   A100-28 (RL-) - Q28-2 (RL-)	Always	Below 1 Ω
   A100-28 (RL-) - Body ground	Always	10 kΩ or higher
   Q28-2 (RL-) - Body ground	Always	10 kΩ or higher

   Result

   Proceed to
   OK
   NG

Result: 

NG 

REPAIR OR REPLACE HARNESS OR CONNECTOR 

Result: 

OK 

See step  7

1. Reconnect the A100 skid control ECU (brake actuator assembly) connector.

   Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

   *a	Front view of wire harness connector (to Rear Speed Sensor)

2. Turn the engine switch on (IG).
3. Measure the voltage according to the value(s) in the table below.

   Standard Voltage

   FOR RH
   
   

   Tester Connection	Condition	Specified Condition
   P19-1 (RR+) - Body ground	Engine switch on (IG)	5.7 to 14 V

   FOR LH
   
   

   Tester Connection	Condition	Specified Condition
   Q28-1 (RL+) - Body ground	Engine switch on (IG)	5.7 to 14 V

   NOTE:

   Check the speed sensor signal after replacement.

   Refer to TEST MODE PROCEDURE [10/2016 - 09/2020]

   HINT: 

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

   Refer to PROBLEM SYMPTOMS TABLE [10/2016 - 09/2020]

   Result

   Proceed to
   OK
   NG

Result: 

OK 

REPLACE SPEED SENSOR REAR. Refer to  REMOVAL [08/2015 - 09/2020] 

Result: 

NG 

REPLACE BRAKE ACTUATOR ASSEMBLY. Refer to  REMOVAL [10/2016 - 09/2020]