VEHICLE STABILITY CONTROL SYSTEM, Diagnostic DTC:C1337
| DTC Code | DTC Name |
|---|---|
| C1337 | Diameter of the Tire is not Uniform |
DESCRIPTION
The skid control ECU (brake actuator assembly) measures the speed of each wheel by receiving signals from the speed sensors.
These signals are used for recognizing that all 4 wheels are operating properly.
Therefore, all wheel signals must indicate the same speed.
DTC No. |
Detection Item |
DTC Detection Condition |
Trouble Area |
|---|---|---|---|
C1337 |
Diameter of the Tire is not Uniform |
The following occurs in 3 consecutive trips: At a vehicle speed of 20 km/h (12 mph) or more, there is a 20% difference or more in the average speed between the front wheels and rear wheels for 20 seconds or more. |
|
CAUTION / NOTICE / HINT
When replacing the skid control ECU (brake actuator assembly), perform zero point calibration.
When C1401 to C1408 and/or C1413 to C1416 are output with C1337, inspect and repair the trouble areas indicated by C1401 to C1408 and/or C1413 to C1416 first.
PROCEDURE
CHECK TIRE SIZE
Check the size and condition of all 4 wheels.
Tip:The DTC is output when tire deformation or a difference in tire size is detected.
OK
The diameter of all 4 tires and air pressure are the same.
Result
Proceed to
OK
NG
NG REPLACE TIRES SO THAT ALL 4 TIRES ARE SAME SIZE
RECONFIRM DTC
Clear the DTCs.
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 output.
Chassis > ABS/VSC/TRC > Clear DTCs
Chassis > ABS/VSC/TRC > Trouble Codes
Result
Proceed to
DTC C1337 is output
DTC C1337 is not output