DTC C1415: Rear Speed Sensor RH Output Malfunction; DTC C1416: Rear Speed Sensor LH Output Malfunction: Procedure

1. Using the Techstream, check for any momentary interruption in the wire harness and connector corresponding to the DTC. Refer to CHECK FOR INTERMITTENT PROBLEMS .
   ABS / VSC / TRAC
   
   

   Tester Display	Measurement Item/Range	Normal Condition	Diagnostic Note
   RR Speed Open	RR speed sensor open detection / Error or Normal	Error: Momentary interruption Normal: Normal	-
   RL Speed Open	RL speed sensor open detection / Error or Normal	Error: Momentary interruption Normal: Normal	-

   OK

   There are no momentary interruptions.

   HINT: 

   Perform the above inspection before removing the sensor and connector.

NG → See step   5 

OK: Go to next step 

1. Turn the ignition switch off.
2. Connect the Techstream to the DLC3.
3. Start the engine.
4. Select the Data List on the Techstream. Refer to DATA LIST / ACTIVE TEST .
   ABS / VSC / TRAC
   
   

   Tester Display	Measurement Item/Range	Normal Condition	Diagnostic Note
   RR Wheel Speed	RR wheel speed sensor reading / min.: 0 km/h (0 mph), max.: 326 km/h (202 mph)	Actual wheel speed	Similar speed as indicated on speedometer
   RL Wheel Speed	RL wheel speed sensor reading /min.: 0 km/h (0 mph), max.: 326 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 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   5 

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 40 km/h (25 mph) or more for at least 60 seconds.
5. Check if the same DTC is output. Refer to DTC CHECK / CLEAR .

   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 the Problem Symptoms Table, refer back to the table and proceed to the next step. Refer to PROBLEM SYMPTOMS TABLE .

B → See step   10 

A → See step   4 

1. Turn the ignition switch off.
   Fig 1: View Of Proper Rear Speed Sensor Installation

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

   OK

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

NG → See step   11 

OK: Go to next step 

1. Make sure that there is no looseness at the locking part and the connecting part of the connectors.
   Fig 2: Identifying Skid Control Sensor Wire Connector Terminals

   Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
2. Disconnect the skid control sensor wire.
3. Measure the resistance according to the value(s) in the table below.

   Standard resistance

   for RH 

   for LH 

   Tester Connection	Condition	Specified Condition
   M12 ("A"-2) - M12 ("B"-1)	Always	Below 1 Ω
   M12 ("A"-2) - M12 ("B"-2)	Always	10 kΩ or higher
   M12 ("A"-2) - Body ground	Always	10 kΩ or higher
   M12 ("A"-1) - M12 ("B"-2)	Always	Below 1 Ω
   M12 ("A"-1) - M12 ("B"-1)	Always	10 kΩ or higher
   M12 ("A"-1) - Body ground	Always	10 kΩ or higher

   Tester Connection	Condition	Specified Condition
   L4 ("A"-2) - L4 ("B"-1)	Always	Below 1 Ω
   L4 ("A"-2) - L4 ("B"-2)	Always	10 kΩ or higher
   L4 ("A"-2) - Body ground	Always	10 kΩ or higher
   L4 ("A"-1) - L4 ("B"-2)	Always	Below 1 Ω
   L4 ("A"-1) - L4 ("B"-1)	Always	10 kΩ or higher
   L4 ("A"-1) - Body ground	Always	10 kΩ or higher

   NOTE:

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

NG → REPLACE SKID CONTROL SENSOR WIRE 

OK: Go to next step 

1. Make sure that there is no looseness at the locking part and the connecting part of the connectors.
   Fig 3: Checking Skid Control ECU And Rear Speed Sensor Connector Terminals

   Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
2. Disconnect the skid control ECU connector.
3. Measure the resistance according to the value(s) in the table below.

   Standard resistance

   for RH 

   for LH 

   Tester Connection	Condition	Specified Condition
   A38-17 (RR+) - M12-1 (RR+)	Always	Below 1 Ω
   A38-17 (RR+) - Body ground	Always	10 kΩ or higher
   A38-16 (RR-) - M12-2 (RR-)	Always	Below 1 Ω
   A38-16 (RR-) - Body ground	Always	10 kΩ or higher

   Tester Connection	Condition	Specified Condition
   A38-5 (RL+) - L4-1 (RL+)	Always	Below 1 Ω
   A38-5 (RL+) - Body ground	Always	10 kΩ or higher
   A38-4 (RL-) - L4-2 (RL-)	Always	Below 1 Ω
   A38-4 (RL-) - 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: Inspecting Rear 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
   M12-1 (RR+) - Body ground	Ignition switch ON	8 to 14 V

   Tester Connection	Switch Condition	Specified Condition
   L4-1 (RL+) - Body ground	Ignition switch ON	8 to 14 V

   NOTE:

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

   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 .

NG → See step   12 

OK → See step   9