Suzuki Vitara (LY) 2016-2017 · Service Manual Diagnostic Information and Procedures

DTC B1A02

Precautions: Precautions for Diagnosing Trouble · Precautions for Control Systems · General safety (00)

DTC Detecting Condition and Trouble Area
DTC detecting condition Trouble area
B1A02: Receiver Circuit No Response
This DTC is detected if all of the following conditions are met.
•TPMS control module does not receive any data from all tire pressure sensors for specified time.
•Receiver integrated in TPMS control module does not respond.
TPMS control module
DTC Confirmation Procedure
1)Set ignition “ON”.
2)Activate any one of tire pressure sensors.
•Using recommended tool: Activate a tire pressure sensor with recommended tool. Refer to instruction of recommended tool for activating method of tire pressure sensor.
Recommended tool
“VT55” or “VT30” made by ATEQ
•Not using recommended tool: Release air pressure from a tire by 10 kPa (1.45 psi) or more within 30 seconds and then inflate the tire to specified pressure.
DTC Troubleshooting
Step Action Yes No
1
Tire pressure sensor check
1)Clear DTC. icon 
2)Perform DTC Confirmation Procedure and then recheck DTC.
Is DTC B1A02 still detected?
Replace TPMS control module and recheck DTC. icon 
Check for intermittent trouble. icon