LAUNCH       X-431 IMMO Pro User Manual 
3. The brake pad sensor circuit is short, which is recovered. 
4. The servo motor is replaced. 
7.3 Steering Angle Calibration 
This function enables you to reset the steering angle, after replacing the steering 
angle position sensor, replacing steering mechanical parts (such as steering 
gearbox, steering column, end tie rod, steering knuckle), performing four-wheel 
alignment, or recovering car body. 
7.4 ABS Bleeding 
This function allows you to perform various bi-directional tests to check the 
operating conditions of Anti-lock Braking System (ABS). 
It needs to be performed in the following cases: 
1. When the ABS contains air. 
2. When the ABS computer, ABS pump, brake master cylinder, brake cylinder, 
brake line, or brake fluid is replaced. 
7.5 Tire Pressure Monitor System Reset 
This function enables you to quickly look up the tire sensor IDs from the vehicle’s 
ECU, reset tire pressure and turn off the tire pressure MIL. 
It needs to be performed in the following cases:   
Tire pressure is too low, tire leaks, tire pressure monitoring device is replaced or 
installed, tire is replaced, tire pressure sensor is damaged, and tire is replaced 
for the car with tire pressure monitoring function. 
7.6 Gear Learning 
This function enables you to perform tooth learning for the car, to turn off the 
MIL. 
It needs to be performed in the following cases: 
1.  After the engine ECU, crankshaft position sensor, or crankshaft flywheel is 
replaced. 
2.  The DTC 'tooth not learned' is present. 
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