ABS (Antilock Brake System)

BRAKE CONTROL: ANTI-LOCK BRAKE SYSTEM: C1337/37: Different Diameter Tire Malfunction

DTC C1337/37 - Different Diameter Tire Malfunction

DESCRIPTION

The skid control ECU measures the speed of each wheel by receiving signals from the speed sensor. These signals are used for recognizing whether all 4 wheels are operating properly. Therefore, all of the wheel signals must be equal.





INSPECTION PROCEDURE

PROCEDURE

1. CHECK TIRES
(a) Check tire size and condition of all 4 wheels.
OK:
All 4 wheels are in same condition.
NG -- REPLACE TIRES SO THAT ALL 4 TIRES ARE SAME IN SIZE
OK -- Continue to next step.
2. CHECK SPEED SENSOR ROTOR
(a) Remove the drive shaft, and check around the speed sensor rotor.
OK:
No scratches or foreign matter on the sensor tip.
NG -- REPLACE SPEED SENSOR ROTOR
OK -- Continue to next step.
3. CHECK SPEED SENSOR
NG -- REPLACE SPEED SENSOR
OK -- Continue to next step.
4. CHECK HARNESS AND CONNECTOR (SKID CONTROL ECU - EACH SPEED SENSOR)
NG -- REPAIR OR REPLACE HARNESS OR CONNECTOR
OK -- Continue to next step.
5. RECONFIRM DTC
(a) Clear the DTCs (Reading and Clearing Diagnostic Trouble Codes).
(b) Check if the same DTCs are detected.





B -- END
A -- REPLACE BRAKE ACTUATOR