DTC C1337/37 Different Diameter Tire Malfunction: Description

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

DTC DETECTING CONDITIONS AND TROUBLE AREAS REFERENCE

DTC No.	DTC Detecting Condition	Trouble Areas
C1337/37	When either of following conditions detected: Diameters different of 2 front wheels and 2 rear wheels. Wheel speed sensor fault	Speed sensor circuit Tire sizes Master cylinder solenoid (skid control ECU)