B1433

DTC B1431 / B1432 / B1433 / B1434: Invalid Pressure Signal From Tire Pressure Sensor

DTC B1431: Invalid Pressure Signal From Tire Pressure Sensor No.1 /

DTC B1432: Invalid Pressure Signal From Tire Pressure Sensor No.2 /

DTC B1433: Invalid Pressure Signal From Tire Pressure Sensor No.3 /

DTC B1434: Invalid Pressure Signal From Tire Pressure Sensor No.4

NOTE:

- Each tire pressure sensor is numbered and that number is assigned in the order as its ID code is registered in BCM. It does not indicate the tire position (LF, RF, LR and RR). Check what number of the tire pressure sensor is assigned to which tire, referring to How to Identify Tire Pressure Sensor Number How to Identify Tire Pressure Sensor Number.
- Perform 2) to 4) of Step 2 within 15 minutes after performing 1) of Step 2. When 15 minutes or more have elapsed after the vehicle was driven, drive again under the specified conditions.

DTC Detecting Condition and Trouble Area






Troubleshooting

1. Tire pressure sensor check

Measure each tire pressure in tires.

Is measured tire pressure less than 351 kPa?
YES -
Go to Step 2.
NO -
Adjust air pressure in tire(s) referring to tire placard.

2. Tire pressure sensor check

Check to determine which tire the DTC detected tire pressure sensor belongs to, referring to How to Identify Tire Pressure Sensor Number How to Identify Tire Pressure Sensor Number.
Connect SUZUKI scan tool to DLC.
Select "Data List" under BCM of SUZUKI scan tool.
Check the "Air pressure" value indicated in "Data List" on the SUZUKI scan tool.

Is air pressure of tire pressure sensor identified by Step 1) between 218.50 to 241.50 kPa?
YES -
Substitute a known-good BCM and recheck.
NO -
Replace tire pressure sensor.