Inspection Procedure

WARNING: This page is about a different car, the 2009 Toyota Corolla. However, it is still accessible from the selected car via links, so may be relevant.

NOTE: When replacing the brake actuator assembly, perform zero point calibration (See CALIBRATION ).

CHECK HARNESS AND CONNECTOR (MOMENTARY INTERRUPTION)

Using the Techstream, check for any momentary interruptions in the wire harness and connector corresponding to a DTC (See CHECK FOR INTERMITTENT PROBLEMS ).

ABS/VSC/TRAC

ABS/VSC/TRAC REFERENCE CHART

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	-

Result

RESULT CHART

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.

B: GO TO STEP 4

C: GO TO STEP 7

A: Go to next step

REPAIR OR REPLACE HARNESS OR CONNECTOR (SKID CONTROL ECU - REAR SPEED SENSOR)
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 rear speed sensor (See CHECK FOR INTERMITTENT PROBLEMS ).
4. Check that there are no momentary interruptions.

RECONFIRM DTC

Turn the ignition switch off.
Clear the DTCs (See DTC CHECK / CLEAR ).
Start the engine.
Drive the vehicle at a speed of 40 km/h (25 mph) or more for at least 60 seconds.

Check if the same DTC is recorded (See DTC CHECK / CLEAR ).

Result

RESULT CHART

Result	Proceed to
DTCs (C0210/33 and/or C0215/34) are output	A
DTCs (C0210/33 and C0215/34) 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 (See PROBLEM SYMPTOMS TABLE ).

B: END

A: Go to next step

READ VALUE USING TECHSTREAM (REAR SPEED SENSOR)

Turn the ignition switch off.
Connect the Techstream to the DLC3.
Start the engine.

Select Data List mode on the Techstream (See DATA LIST / ACTIVE TEST ).

ABS/VSC/TRAC

ABS/VSC/TRAC REFERENCE CHART

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

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 (See DIAGNOSTIC TROUBLE CODE CHART ).

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: GO TO STEP 7

OK: Go to next step

PERFORM TEST MODE (SIGNAL CHECK)
1. Turn the ignition switch off.
2. Perform the sensor check in the Test Mode procedure (See TEST MODE PROCEDURE ).
  OK:
  
  All Test Mode DTCs are cleared.
NG: GO TO STEP 7

OK: Go to next step

RECONFIRM DTC

Turn the ignition switch off.
Clear the DTCs (See DTC CHECK / CLEAR ).
Start the engine.
Drive the vehicle at a speed of 40 km/h (25 mph) or more for at least 60 seconds.

Check if the same DTC is recorded (See DTC CHECK / CLEAR ).

Result

RESULT CHART

Result	Proceed to
DTCs (C0210/33 and C0215/34) are not output	A
DTCs (C0210/33 and/or C0215/34) 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 (See PROBLEM SYMPTOMS TABLE ).

B: GO TO STEP 13

A: CHECK FOR INTERMITTENT PROBLEMS (SYMPTOM SIMULATION) (See DIAGNOSIS SYSTEM )

CHECK REAR SPEED SENSOR INSTALLATION
1. Turn the ignition switch off.
2. Check the speed sensor installation.
  OK:
  
  There is no clearance between the sensor and rear axle carrier.
NG: INSTALL REAR SPEED SENSOR CORRECTLY (See INSTALLATION )

Fig 1: Identifying Clearance Between Sensor And Rear Axle Carrier
Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

OK: Go to next step

INSPECT REAR SPEED SENSOR

Make sure that there is no looseness at the locking part and the connecting part of the connectors.
Disconnect the rear speed sensor connector.

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

Standard Resistance:

for RH

TESTER CONNECTION SPECIFIED CONDITION CHART

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

Fig 2: Measuring Resistance Between Rear Speed Sensor Terminals

Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

for LH

TESTER CONNECTION SPECIFIED CONDITION CHART

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

NOTE: Check the speed sensor signal after replacement (See TEST MODE PROCEDURE ).

NG: REPLACE REAR SPEED SENSOR (See REMOVAL )

OK: Go to next step

CHECK HARNESS AND CONNECTOR (SKID CONTROL SENSOR WIRE)

Disconnect the skid control sensor wire.

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

Standard Resistance:

for RH

TESTER CONNECTION SPECIFIED CONDITION CHART

Tester Connection	Condition	Specified Condition
W1 ("A"-2) - W1 ("B"-1)	Always	Below 1 Ω
W1 ("A"-2) - W1 ("B"-2)	Always	10 kΩ or higher
W1 ("A"-2) - Body ground	Always	10 kΩ or higher
W1 ("A"-1) - W1 ("B"-2)	Always	Below 1 Ω
W1 ("A"-1) - W1 ("B"-1)	Always	10 kΩ or higher
W1 ("A"-1) - Body ground	Always	10 kΩ or higher

Fig 3: Identifying Skid Control Sensor Wire Connector Terminals

Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

for LH

TESTER CONNECTION SPECIFIED CONDITION CHART

Tester Connection	Condition	Specified Condition
V1 ("A"-2) - V1 ("B"-1)	Always	Below 1 Ω
V1 ("A"-2) - V1 ("B"-2)	Always	10 kΩ or higher
V1 ("A"-2) - Body ground	Always	10 kΩ or higher
V1 ("A"-1) - V1 ("B"-2)	Always	Below 1 Ω
V1 ("A"-1) - V1 ("B"-1)	Always	10 kΩ or higher
V1 ("A"-1) - Body ground	Always	10 kΩ or higher

NOTE: Check the speed sensor signal after replacement (See TEST MODE PROCEDURE ).

NG: REPLACE SKID CONTROL SENSOR WIRE

OK: Go to next step

CHECK HARNESS AND CONNECTOR (SKID CONTROL ECU - REAR SPEED SENSOR)

Reconnect the skid control sensor wire.
Disconnect the skid control ECU connector.

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

Standard Resistance:

for RH

TESTER CONNECTION SPECIFIED CONDITION CHART

Tester Connection	Condition	Specified Condition
A66-17 (RR+) - W1-2 (RR+)	Always	Below 1 Ω
A66-17 (RR+) - Body ground	Always	10 kΩ or higher
A66-16 (RR-) - W1-1 (RR-)	Always	Below 1 Ω
A66-16 (RR-) - Body ground	Always	10 kΩ or higher

for LH

TESTER CONNECTION SPECIFIED CONDITION CHART

Tester Connection	Condition	Specified Condition
A66-5 (RL+) - V1-2 (RL+)	Always	Below 1 Ω
A66-5 (RL+) - Body ground	Always	10 kΩ or higher
A66-4 (RL-) - V1-1 (RL-)	Always	Below 1 Ω
A66-4 (RL-) - Body ground	Always	10 kΩ or higher

Fig 4: Identifying Skid Control ECU And Rear Speed Sensor Connector Terminals

OK: Go to next step

INSPECT SKID CONTROL ECU (SENSOR INPUT)

Reconnect the skid control ECU connector.
Turn the ignition switch to ON.

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

Standard Voltage:

for RH

TESTER CONNECTION SPECIFIED CONDITION CHART

Tester Connection	Switch Condition	Specified Condition
W1-2 (RR+) - Body ground	Ignition switch ON	8 to 14 V

Fig 5: Identifying Skid Control ECU Connector Terminals

for LH

TESTER CONNECTION SPECIFIED CONDITION CHART

Tester Connection	Switch Condition	Specified Condition
V1-2 (RL+) - Body ground	Ignition switch ON	8 to 14 V

NG: REPLACE BRAKE ACTUATOR ASSEMBLY (See REMOVAL )

OK: Go to next step

RECONFIRM DTC

Turn the ignition switch off.
Reconnect the rear speed sensor connector.
Clear the DTCs (See DTC CHECK / CLEAR ).
Start the engine.
Drive the vehicle at a speed of 40 km/h (25 mph) or more for at least 60 seconds.

Check if the same DTC is recorded (See DTC CHECK / CLEAR ).

Result

RESULT CHART

Result	Proceed to
DTCs (C0210/33 and/or C0215/34) are output	A
DTCs (C0210/33 and C0215/34) 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 (See PROBLEM SYMPTOMS TABLE ).

B: CHECK FOR INTERMITTENT PROBLEMS (SYMPTOM SIMULATION) (See DIAGNOSIS SYSTEM )

A: Go to next step

REPLACE REAR SPEED SENSOR AND REAR SPEED SENSOR ROTOR
1. Turn the ignition switch off.
2. Replace the rear speed sensor (See REMOVAL ).
3. Replace the rear axle hub and bearing assembly (rear speed sensor rotor) (See REMOVAL ).
  HINT:
  
  The rear speed sensor rotor is incorporated into the rear axle hub and bearing assembly.
  
  If the rear speed sensor rotor needs to be replaced, replace it together with the rear axle hub and bearing assembly with rear speed sensor.
  
  NOTE: Check the speed sensor signal after replacement (See TEST MODE PROCEDURE ).

RECONFIRM DTC

Clear the DTCs (See DTC CHECK / CLEAR ).
Start the engine.
Drive the vehicle at a speed of 40 km/h (25 mph) or more for at least 60 seconds.

Check if the same DTC is recorded (See DTC CHECK / CLEAR ).

Result

RESULT CHART

Result	Proceed to
DTCs (C0210/33 and/or C0215/34) are output	A
DTCs (C0210/33 and C0215/34) 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 (See PROBLEM SYMPTOMS TABLE ).

B: END

A: REPLACE BRAKE ACTUATOR ASSEMBLY (See REMOVAL )