DTC C1415: Rear Speed Sensor RH Circuit Output; DTC C1416: Rear Speed Sensor LH Circuit Output [11/2017 - 03/2019]: Procedure
- CHECK HARNESS AND CONNECTOR (MOMENTARY INTERRUPTION)
- Using the Techstream, check for any momentary interruption in the wire harness and connector corresponding to a DTC.
Refer to CHECK FOR INTERMITTENT PROBLEMS [11/2017 - 03/2019]
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
Normal (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
- Using the Techstream, check for any momentary interruption in the wire harness and connector corresponding to a DTC.
- READ VALUE USING TECHSTREAM (REAR SPEED SENSOR)
- Select the Data List using the Techstream.
Refer to DATA LIST / ACTIVE TEST [11/2017 - 03/2019]
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.: 326.4 km/h (203 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.: 326.4 km/h (203 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 - 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 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 [11/2017 - 03/2019]
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
- Select the Data List using the Techstream.
- RECONFIRM DTC
- Turn the engine switch off.
- Clear the DTCs.
Refer to DTC CHECK / CLEAR [11/2017 - 03/2019]
Chassis > ABS/VSC/TRAC > Clear DTCs
- Turn the engine switch off.
- Start the engine.
- Perform a road test.
- Check if the same DTC is output.
Refer to DTC CHECK / CLEAR [11/2017 - 03/2019]
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.
Result:
A
USE SIMULATION METHOD TO CHECK. Refer to HOW TO PROCEED WITH TROUBLESHOOTING [11/2017 - 03/2019]
Result:
B
REPLACE BRAKE ACTUATOR ASSEMBLY. Refer to REMOVAL [11/2017 - 01/2023]
- CHECK REAR SPEED SENSOR INSTALLATION
- Turn the engine switch off.
*1 Rear Speed Sensor *a Correct *b Incorrect *c 8.5 Nm *d No clearance - 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)
Result
Proceed to OK NG
Result:
NG
INSTALL REAR SPEED SENSOR CORRECTLY. Refer to INSTALLATION [09/2014 - 01/2023]
Result:
OK
See step 5
- Turn the engine switch off.
- CHECK REAR SPEED SENSOR AND SENSOR ROTOR
- Remove the rear speed sensor and the component with the sensor rotor.
for Speed Sensor: Refer to REMOVAL [09/2014 - 01/2023]
for Sensor Rotor: Refer to REMOVAL [10/2015 - 03/2019]
- 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.
Result
Proceed to OK NG - If no damage to the speed sensor tip is found during this inspection, do not replace the speed sensor.
Result:
NG
CLEAN OR REPLACE REAR SPEED SENSOR OR COMPONENT WITH SENSOR ROTOR
Result:
OK
See step 6
- Remove the rear speed sensor and the component with the sensor rotor.
- CHECK HARNESS AND CONNECTOR (BRAKE ACTUATOR ASSEMBLY - REAR SPEED SENSOR)
- Reinstall the rear speed sensor and the component with the sensor rotor.
for Speed Sensor: Refer to INSTALLATION [09/2014 - 01/2023]
for Sensor Rotor: Refer to INSTALLATION [10/2015 - 03/2019]
- Make sure that there is no looseness at the locking part and the connecting part of the connector.
- Disconnect the A86 skid control ECU (brake actuator assembly) connector.
- Disconnect the T16 or U24 rear speed sensor connector.
- Measure the resistance according to the value(s) in the table below.
Standard Resistance
FOR RHTester Connection Condition Specified Condition A86-16 (RR+) - T16-1 (RR+) Always Below 1 Ω A86-16 (RR+) or T16-1 (RR+) - Body ground Always 10 kΩ or higher A86-15 (RR-) - T16-2 (RR-) Always Below 1 Ω A86-15 (RR-) or T16-2 (RR-) - Body ground Always 10 kΩ or higher FOR LHTester Connection Condition Specified Condition A86-29 (RL+) - U24-1 (RL+) Always Below 1 Ω A86-29 (RL+) or U24-1 (RL+) - Body ground Always 10 kΩ or higher A86-28 (RL-) - U24-2 (RL-) Always Below 1 Ω A86-28 (RL-) or U24-2 (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
- Reinstall the rear speed sensor and the component with the sensor rotor.
- INSPECT BRAKE ACTUATOR ASSEMBLY (SENSOR POWER SUPPLY OUTPUT)
- Reconnect the A86 skid control ECU (brake actuator assembly) connector.
*A for RH *B for LH *a Front view of wire harness connector
(to Rear Speed Sensor) - Turn the engine switch on (IG).
- Measure the voltage according to the value(s) in the table below.
Standard Voltage
FOR RHTester Connection Condition Specified Condition T16-1 (RR+) - Body ground Engine switch on (IG) 8 to 14 V FOR LHTester Connection Condition Specified Condition U24-1 (RL+) - Body ground Engine switch on (IG) 8 to 14 V NOTE:Check the speed sensor signal after replacement.
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 [11/2017 - 03/2019]
Result
Proceed to OK NG
Result:
OK
REPLACE REAR SPEED SENSOR. Refer to REMOVAL [09/2014 - 01/2023]
Result:
NG
REPLACE BRAKE ACTUATOR ASSEMBLY. Refer to REMOVAL [11/2017 - 01/2023]
- Reconnect the A86 skid control ECU (brake actuator assembly) connector.