DTC C1442: Invalid Data Received from Acceleration Sensor; DTC C1443: Invalid Data Received from Yaw Rate Sensor: 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 DTC

Clear the DTCs. Refer to DTC CHECK / CLEAR .
Start and idle the engine for 60 seconds, and then stop the engine.

Check if the same DTC is recorded. Refer to DTC CHECK / CLEAR .

Result

Result	Proceed to
DTCs (C1442 and/or C1443) are output	A
DTCs (C1442 and C1443) are not output	B

HINT:

If troubleshooting has been carried out according to Problem Symptoms Table, refer back to the table and proceed to the next step. Refer to PROBLEM SYMPTOMS TABLE .

B → See step 3

A → See step 2

REPLACE YAW RATE AND ACCELERATION SENSOR. Refer to REMOVAL
CHECK FOR INTERMITTENT PROBLEMS. Refer to ELECTRONIC CIRCUIT INSPECTION PROCEDURE