When road testing the vehicle, be aware of other vehicle systems and conditions which might affect the brake system or generate brake complaints. Be particularly aware of conditions which might cause leading or pulling to one side when the brakes are not applied. Conditions which might cause such, or which might be mistaken for brake problems include:

1. Tires. Tires having unequal contact and grip on the road will cause unequal braking. Tires must be equally inflated, identical in size, and the tread pattern of right and left tires must be about equal. Refer to Tires in Tires and Wheels for tire-related lead/pull diagnosis.
2. Vehicle Loading. A heavily loaded vehicle requires more braking effort. When a vehicle has unequal loading, the most heavily loaded wheels require more braking power than others.
3. Wheel Alignment. Misalignment of the wheels, particularly excessive camber and caster, will cause the brakes to pull to one side.