TDAS4725002230 | Genuine Wabco® ABS/ATC Axle Tractor Package 12V

1. Prevent losing control when braking (ABS)

When a truck brakes hard, especially on wet or icy roads, the wheels can lock up. That can cause skidding or even jackknifing.

• ABS prevents the wheels from locking
• Keeps the truck steerable during emergency braking
• Helps the driver maintain control instead of sliding

2. Prevent wheel spin when accelerating (ATC)

When starting from a stop or accelerating on slippery surfaces, the drive wheels can spin and lose grip.

• ATC detects slipping wheels
• Automatically reduces engine power or applies braking
• Restores traction so the truck moves smoothly

Why the full package matters

Because it’s built specifically for the tractor’s drive axles, the system:

• Improves traction under load (important for hauling freight)
• Reduces risk of jackknifing or fishtailing
• Increases driver safety and confidence
• Helps protect tires and drivetrain from excessive wear

1. ABS or ATC warning lights stay on

• Dashboard lights don’t turn off after startup
• Indicates a fault in sensors, wiring, or control module
• Often the first and most obvious sign

2. Wheels locking up during braking

• Truck skids during hard stops
• Loss of steering control when braking
• Means ABS isn’t functioning properly

3. Excessive wheel spin when accelerating

• Drive wheels spin on wet, icy, or loose surfaces
• Truck struggles to gain traction from a stop
• Suggests ATC is not engaging

4. Uneven or erratic braking

• Pulsing feels abnormal or inconsistent
• One axle or side brakes harder than the other
• Could point to faulty wheel-speed sensors or modulators

5. Reduced traction in normal conditions

• Slipping even when conditions aren’t that bad
• System not correcting loss of grip like it should

6. Fault codes or diagnostic alerts

• Codes related to wheel speed sensors, ABS module, or ATC
• Typically found during a scan or inspection

7. Unusual noises during braking

• Grinding, clicking, or rapid pulsing from wheels
• Can indicate ABS components malfunctioning