DTC C1415: Rear Speed Sensor RH Circuit Output; DTC C1416: Rear Speed Sensor LH Circuit Output [08/2021 - ]: Procedure

1. Clear the DTCs.

   Refer to DTC CHECK / CLEAR [10/2018 - ]

   Chassis > ABS/VSC/TRAC > Clear DTCs 

2. Turn the power switch off.
3. Turn the power switch on (IG).
4. Check if the same DTC is output.

   Refer to DTC CHECK / CLEAR [10/2018 - ]

   Chassis > ABS/VSC/TRAC > Trouble Codes 

   Result

   Result	Proceed to
   DTC C1415 is output.	A
   DTC C1416 is output.	B

Result: 

B 

See step  10

Result: 

A 

See step  2

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 [10/2018 - ]

   Chassis > ABS/VSC/TRAC > Data List 

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

   Chassis > ABS/VSC/TRAC > Data List 

   Tester Display
   RR Speed Sensor Voltage Open

2. Check for any momentary interruptions in the wire harness and connectors.
   NOTE:

   Perform the above inspection before removing the sensor and connector.

   Result

   Result	Proceed to
   The value of RR Speed Sensor Voltage Open is always Normal	A
   The value of RR Speed Sensor Voltage Open outputs Error one or more times	B

Result: 

B 

See step  5

Result: 

A 

See step  3

1. Select the Data List on the Techstream.

   Refer to DATA LIST / ACTIVE TEST [10/2018 - ]

   Chassis > ABS/VSC/TRAC > Data List 

   Tester Display	Measurement Item	Range	Normal Condition	Diagnostic Note
   RR Wheel Speed	Rear speed sensor RH	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

2. Check the rear speed sensor RH output value.

   OK

   The output value changes in accordance with the vehicle speed.

   Result

   Proceed to
   OK
   NG

Result: 

NG 

See step  5

Result: 

OK 

See step  4

1. Clear the DTCs.

   Refer to DTC CHECK / CLEAR [10/2018 - ]

   Chassis > ABS/VSC/TRAC > Clear DTCs 

2. Turn the power switch off.
3. Turn the power switch on (READY).
4. Perform a road test.
5. Check if the same DTC is output.

   Refer to DTC CHECK / CLEAR [10/2018 - ]

   Chassis > ABS/VSC/TRAC > Trouble Codes 

   Result

   Result	Proceed to
   DTC C1415 is not output.	A
   DTC C1415 is output.	B

Result: 

A 

USE SIMULATION METHOD TO CHECK. Refer to  HOW TO PROCEED WITH TROUBLESHOOTING [10/2018 - ] 

Result: 

B 

REPLACE BRAKE BOOSTER WITH MASTER CYLINDER ASSEMBLY. Refer to  REMOVAL [10/2018 - 07/2022]  , or refer to  REMOVAL [07/2022 - ] 

1. Turn the power switch off.

   Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

   *A	for 2WD
   *B	for AWD
   *a	OK
   *b	NG

2. Check the rear speed sensor RH installation.

   OK

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

   HINT: 

   Because the rear axle hub and bearing assembly RH cannot be disassembled, if the rear speed sensor RH needs replacement, replace the rear axle hub and bearing assembly RH. (for 2WD)

   Result

   Result	Proceed to
   OK (for 2WD)	A
   OK (for AWD)	B
   NG (for 2WD)	C
   NG (for AWD)	D

Result: 

A 

See step  7

Result: 

C 

REPLACE REAR AXLE HUB AND BEARING ASSEMBLY RH. Refer to  REMOVAL [10/2018 - 07/2022]  , or refer to  REMOVAL [07/2022 - ] 

Result: 

D 

REINSTALL OR REPLACE REAR SPEED SENSOR RH. Refer to  REMOVAL [10/2018 - ] 

Result: 

B 

See step  6

1. Remove the rear speed sensor RH.

   Refer to REMOVAL [10/2018 - ]

2. Check the speed sensor tip.

   OK

   The sensor tip is free of scratches, oil, and foreign matter.

   NOTE:

   • If there is oil or foreign matter on the speed sensor, clean the speed sensor.
   • If the speed sensor is damaged, replace the speed sensor with a new one.
   • Check the speed sensor signal after cleaning or replacement.

     Refer to TEST MODE PROCEDURE [10/2018 - ]

   Result

   Proceed to
   OK
   NG

Result: 

NG 

CLEAN OR REPLACE REAR SPEED SENSOR RH 

Result: 

OK 

See step  7

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

   OK

   The connector is securely connected.

   Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

   *a	Front view of skid control sensor wire RH (No. 1 parking brake wire assembly)
   *b	Front view of wire harness connector (to Sensor Side Connector)
   *c	Front view of wire harness connector (to Vehicle Side Connector)

2. Disconnect the j1 and jN1 skid control sensor wire RH (No. 1 parking brake wire assembly) connectors.
3. Check both the connector case and the terminals for deformation and corrosion.

   OK

   No deformation or corrosion.

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

   Standard Resistance

   Tester Connection	Condition	Specified Condition
   j1-2 (+) - jN1-1 (RR+)	Always	Below 1 Ω
   j1-2(+) or jN1-1 (RR+) - Body ground and other terminals	Always	10 kΩ or higher
   j1-1 (-) - jN1-2 (RR-)	Always	Below 1 Ω
   j1-1 (-) or jN1-2 (RR-) - Body ground and other terminals	Always	10 kΩ or higher

   Result

   Proceed to
   OK
   NG

Result: 

NG 

REPLACE NO. 1 PARKING BRAKE WIRE ASSEMBLY 

Result: 

OK 

See step  8

1. Make sure that there is no looseness at the locking part and the connecting part of the connector.

   OK

   The connector is securely connected.

2. Disconnect the A37 skid control ECU (brake booster with master cylinder assembly) connector.
3. Check both the connector case and the terminals for deformation and corrosion.

   OK

   No deformation or corrosion.

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

   Standard Resistance

   Tester Connection	Condition	Specified Condition
   A37-7 (RR+) - jN1-1 (RR+)	Always	Below 1 Ω
   A37-7 (RR+) or jN1-1 (RR+) - Body ground	Always	10 kΩ or higher
   A37-8 (RR-) - jN1-2 (RR-)	Always	Below 1 Ω
   A37-8 (RR-) or jN1-2 (RR-) - Body ground	Always	10 kΩ or higher

   Result

   Proceed to
   OK
   NG

Result: 

NG 

REPAIR OR REPLACE HARNESS OR CONNECTOR 

Result: 

OK 

See step  9

1. Reconnect the A37 skid control ECU (brake booster with master cylinder assembly) connector.

   Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

   *a	Front view of wire harness connector (to Skid Control Sensor Wire RH (No. 1 Parking Brake Wire Assembly))

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

   Standard Voltage

   Tester Connection	Switch Condition	Specified Condition
   jN1-1 (RR+) - Body ground	Power switch on (IG)	8 to 14 V

   NOTE:

   Check the rear speed sensor RH signal after replacement.

   Refer to TEST MODE PROCEDURE [10/2018 - ]

   HINT: 

   The rear speed sensor RH and rear speed sensor rotor RH are incorporated into the rear axle hub and bearing assembly RH. (for 2WD)

   If the rear speed sensor RH and rear speed sensor rotor RH need to be replaced, replace the rear axle hub and bearing assembly RH. (for 2WD)

   Result

   Result	Proceed to
   OK (for 2WD)	A
   OK (for AWD)	B
   NG	C

Result: 

A 

REPLACE REAR AXLE HUB AND BEARING ASSEMBLY RH. Refer to  REMOVAL [10/2018 - 07/2022]  , or refer to  REMOVAL [07/2022 - ] 

Result: 

B 

REPLACE REAR SPEED SENSOR RH. Refer to  REMOVAL [10/2018 - ] 

Result: 

C 

REPLACE BRAKE BOOSTER WITH MASTER CYLINDER ASSEMBLY. Refer to  REMOVAL [10/2018 - 07/2022]  , or refer to  REMOVAL [07/2022 - ] 

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 [10/2018 - ]

   Chassis > ABS/VSC/TRAC > Data List 

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

   Chassis > ABS/VSC/TRAC > Data List 

   Tester Display
   RL Speed Sensor Voltage Open

2. Check for any momentary interruptions in the wire harness and connectors.
   NOTE:

   Perform the above inspection before removing the sensor and connector.

   Result

   Result	Proceed to
   The value of RL Speed Sensor Voltage Open is always Normal	A
   The value of RL Speed Sensor Voltage Open outputs Error one or more times	B

Result: 

B 

See step  13

Result: 

A 

See step  11

1. Select the Data List on the Techstream.

   Refer to DATA LIST / ACTIVE TEST [10/2018 - ]

   Chassis > ABS/VSC/TRAC > Data List 

   Tester Display	Measurement Item	Range	Normal Condition	Diagnostic Note
   RL Wheel Speed	Rear speed sensor LH	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
   RL Wheel Speed

2. Check the rear speed sensor LH output value.

   OK

   The output value changes in accordance with the vehicle speed.

   Result

   Proceed to
   OK
   NG

Result: 

NG 

See step  13

Result: 

OK 

See step  12

1. Clear the DTCs.

   Refer to DTC CHECK / CLEAR [10/2018 - ]

   Chassis > ABS/VSC/TRAC > Clear DTCs 

2. Turn the power switch off.
3. Turn the power switch on (READY).
4. Perform a road test.
5. Check if the same DTC is output.

   Refer to DTC CHECK / CLEAR [10/2018 - ]

   Chassis > ABS/VSC/TRAC > Trouble Codes 

   Result

   Result	Proceed to
   DTC C1416 is not output.	A
   DTC C1416 is output.	B

Result: 

A 

USE SIMULATION METHOD TO CHECK. Refer to  HOW TO PROCEED WITH TROUBLESHOOTING [10/2018 - ] 

Result: 

B 

REPLACE BRAKE BOOSTER WITH MASTER CYLINDER ASSEMBLY. Refer to  REMOVAL [10/2018 - 07/2022]  , or refer to  REMOVAL [07/2022 - ] 

1. Turn the power switch off.

   Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

   *A	for 2WD
   *B	for AWD
   *a	OK
   *b	NG

2. Check the rear speed sensor LH installation.

   OK

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

   HINT: 

   Because the rear axle hub and bearing assembly LH cannot be disassembled, if the rear speed sensor LH needs replacement, replace the rear axle hub and bearing assembly LH. (for 2WD)

   Result

   Result	Proceed to
   OK (for 2WD)	A
   OK (for AWD)	B
   NG (for 2WD)	C
   NG (for AWD)	D

Result: 

A 

See step  15

Result: 

C 

REPLACE REAR AXLE HUB AND BEARING ASSEMBLY LH. Refer to  REMOVAL [10/2018 - 07/2022]  , or refer to  REMOVAL [07/2022 - ] 

Result: 

D 

REINSTALL OR REPLACE REAR SPEED SENSOR LH. Refer to  REMOVAL [10/2018 - ] 

Result: 

B 

See step  14

1. Remove the rear speed sensor RH.

   Refer to REMOVAL [10/2018 - ]

2. Check the speed sensor tip.

   OK

   The sensor tip is free of scratches, oil, and foreign matter.

   NOTE:

   • If there is oil or foreign matter on the speed sensor, clean the speed sensor.
   • If the speed sensor is damaged, replace the speed sensor with a new one.
   • Check the speed sensor signal after cleaning or replacement.

     Refer to TEST MODE PROCEDURE [10/2018 - ]

   Result

   Proceed to
   OK
   NG

Result: 

NG 

CLEAN OR REPLACE REAR SPEED SENSOR RH 

Result: 

OK 

See step  15

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

   OK

   The connector is securely connected.

   Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

   *a	Front view of skid control sensor wire LH (No. 2 parking brake wire assembly)
   *b	Front view of wire harness connector (to Sensor Side Connector)
   *c	Front view of wire harness connector (to Vehicle Side Connector)

2. Disconnect the k1 and kN1 skid control sensor wire LH (No. 2 parking brake wire assembly) connectors.
3. Check both the connector case and the terminals for deformation and corrosion.

   OK

   No deformation or corrosion.

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

   Standard Resistance

   Tester Connection	Condition	Specified Condition
   k1-2 (+) - kN1-1 (RL+)	Always	Below 1 Ω
   k1-2 (+) or kN1-1 (RL+) - Body ground and other terminals	Always	10 kΩ or higher
   k1-1 (-) - kN1-2 (RL-)	Always	Below 1 Ω
   k1-1(-) or kN1-2 (RL-) - Body ground and other terminals	Always	10 kΩ or higher

   Result

   Proceed to
   OK
   NG

Result: 

NG 

REPLACE NO. 2 PARKING BRAKE WIRE ASSEMBLY 

Result: 

OK 

See step  16

1. Make sure that there is no looseness at the locking part and the connecting part of the connector.

   OK

   The connector is securely connected.

2. Disconnect the A37 skid control ECU (brake booster with master cylinder assembly) connector.
3. Check both the connector case and the terminals for deformation and corrosion.

   OK

   No deformation or corrosion.

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

   Standard Resistance

   Tester Connection	Condition	Specified Condition
   A37-34 (RL+) - kN1-1 (RL+)	Always	Below 1 Ω
   A37-34 (RL+) or kN1-1 (RL+) - Body ground	Always	10 kΩ or higher
   A37-35 (RL-) - kN1-2 (RL-)	Always	Below 1 Ω
   A37-35 (RL-) or kN1-2 (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  17

1. Reconnect the A37 skid control ECU (brake booster with master cylinder assembly) connector.

   Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

   *a	Front view of wire harness connector (to Skid Control Sensor Wire LH (No. 2 Parking Brake Wire Assembly))

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

   Standard Voltage

   Tester Connection	Switch Condition	Specified Condition
   kN1-1 (RL+) - Body ground	Power switch on (IG)	8 to 14 V

   NOTE:

   Check the rear speed sensor LH signal after replacement.

   Refer to TEST MODE PROCEDURE [10/2018 - ]

   HINT: 

   The rear speed sensor LH and rear speed sensor rotor LH are incorporated into the rear axle hub and bearing assembly LH.

   If the rear speed sensor LH and rear speed sensor rotor LH need to be replaced, replace the rear axle hub and bearing assembly LH.

   Result

   Result	Proceed to
   OK (for 2WD)	A
   OK (for AWD)	B
   NG	C

Result: 

A 

REPLACE REAR AXLE HUB AND BEARING ASSEMBLY LH. Refer to  REMOVAL [10/2018 - 07/2022]  , or refer to  REMOVAL [07/2022 - ] 

Result: 

B 

REPLACE REAR SPEED SENSOR LH. Refer to  REMOVAL [10/2018 - ] 

Result: 

C 

REPLACE BRAKE BOOSTER WITH MASTER CYLINDER ASSEMBLY. Refer to  REMOVAL [10/2018 - 07/2022]  , or refer to  REMOVAL [07/2022 - ]