What is the ABS warning light?

The ABS (Anti-lock Braking System) warning light is part of your car’s safety monitoring system. When illuminated, it means the vehicle has detected a fault in the ABS system, which is designed to prevent wheel lock-up during sudden braking. The ABS light may come on intermittently or stay on continuously, signalling that an assessment is needed to diagnose the fault.

Why do you need an ABS light assessment?

Your ABS helps you maintain steering control under hard braking, especially in wet or slippery conditions. If the ABS light is on, the system may not activate when you need it most. An assessment identifies whether the issue is with sensors, wiring, the ABS pump, or another component. This ensures your car remains safe and compliant for WOF standards in New Zealand.

Common signs you need an ABS system check

• ABS warning light stays illuminated on the dashboard
• Brakes feel different or lock up under heavy braking
• Longer stopping distances, especially in the wet
• Pulsation in the brake pedal even in normal stops
• Other brake warning lights showing at the same time

If you notice these symptoms, arrange an ABS diagnostic test as soon as possible to prevent further damage and keep braking performance safe.

What happens during an ABS warning light assessment?

A qualified mechanic will use a scan tool to read the ABS fault codes from your vehicle’s ECU. The assessment pinpoints whether the problem lies in a wheel speed sensor, hydraulic pump, control module, or wiring. Visual checks of the wiring and brake components are also performed. Once the issue is identified, the mechanic will provide a clear repair recommendation and quote.

How much does an ABS light assessment cost?

The cost for an ABS warning light diagnostic typically starts from $90–$120 in New Zealand. If additional testing is required, or repairs are needed (such as replacing a sensor or ABS pump), costs can range from $200–$1,000+ depending on the part and vehicle type. At My Auto Shop, you’ll always receive an upfront quote before any repair work begins.

Is there a safety risk if the ABS light is ignored?

Yes. While your standard braking system may still function, the ABS will not operate when needed. This increases the chance of wheel lock-up and loss of steering control in emergency stops. Driving with an ABS fault also risks failing your next WOF inspection. For safety and compliance, it’s best to book an ABS light assessment as soon as the warning appears.