B1424
DTC B1421 / B1422 / B1423 / B1424: No Data From Tire Pressure Sensor
DTC B1421: No Data From Tire Pressure Sensor No.1 /
DTC B1422: No Data From Tire Pressure Sensor No.2 /
DTC B1423: No Data From Tire Pressure Sensor No.3 /
DTC B1424: No Data 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.
Wiring Diagram
DTC Detecting Condition and Trouble Area
Troubleshooting
1. DTC check of BCM
Are DTC B1421, DTC B1422, DTC B1423 and DTC B1424 detected together?
YES -
Go to Step 3.
NO -
Go to Step 2.
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.
Check the DTC detected tire pressure sensor for proper operation, referring to Tire Pressure Sensor On-Vehicle Inspection Tire Pressure Sensor On-Vehicle Inspection.
Is tire pressure sensor working properly?
YES -
Substitute a known-good BCM and recheck.
NO -
Replace tire pressure sensor.
3. TPMS receiver circuit check
Disconnect connectors from BCM and TPMS receiver.
Check for proper connection to terminals of TPMS receiver connector.
If OK, check for open, short and high resistance in following circuit.
- TPMS receiver power supply circuit
- TPMS receiver signal circuit
- TPMS receiver ground circuit
Is each circuit in good condition?
YES -
Go to Step 4.
NO -
Repair defective circuit.
4. TPMS receiver check
Connect connectors to BCM and TPMS receiver.
Check for signal transmission from TPMS receiver to BCM, referring to TPMS Receiver Inspection TPMS Receiver Inspection.
Does TPMS receiver send signals?
YES -
Substitute a known-good BCM and recheck.
NO -
Replace TPMS receiver.