DTC C1240: Yaw Rate Sensor Discrimination: Procedure
WARNING: This page is about a different car, the 2009 Lexus IS 350 and 2009 Lexus IS 250. However, it is still accessible from the selected car via links, so may be relevant.
- CHECK PART NUMBER (YAW RATE AND ACCELERATION SENSOR)
- Check that the part number of the installed yaw rate and acceleration sensor is correct.
OK
Yaw rate and acceleration sensor installed in the vehicle has the correct part number.
NG → See step 4
OK: Go to next step
- Check that the part number of the installed yaw rate and acceleration sensor is correct.
- RECONFIRM DTC
- Clear the DTCs. Refer to DTC CHECK / CLEAR .
- Check if the same DTC is recorded. Refer to DTC CHECK / CLEAR
.
Result
Result Proceed to DTC (C1240) is not output A DTC (C1240) is output B
B → See step 5
A → See step 3
- CHECK FOR INTERMITTENT PROBLEMS. Refer to ELECTRONIC CIRCUIT INSPECTION PROCEDURE
- REPLACE YAW RATE AND ACCELERATION SENSOR. Refer to REMOVAL
- REPLACE BRAKE ACTUATOR ASSEMBLY. Refer to REMOVAL