B1421

DTC B1421 / B1422 / B1423 / B1424

NOTE: Each tire pressure sensor is numbered and that number is assigned in the order as its ID code is registered in keyless start control module. It does not indicate tire position (front-left, front-right, rear-left and rear-right). Check what number of tire pressure sensor is assigned to which tire, referring to How to Identify Tire Pressure Sensor Number.

Circuit Diagram

Circuit Diagram:

DTC Detecting Condition and Trouble Area







DTC Troubleshooting

Step 1-5:

Step 5 (Continued)-6:

Step 7-8: