Servicing Precautions Bleeding (removing air from hydraulic lines) may be done exactly the same as a non-ABS equipped vehicle or may have specific bleeding procedures when disconnecting brake lines, accumulator pressure may have to be relieved – can be up to 2800 PSI! read manufacturer's instructions carefully before beginning repairs! ABS problem: always begin with a thorough inspection of the base brake system (non-ABS portion) first brake warning light indicates a problem in the base braking system – not the ABS ABS warning lamp indicates a problem within the ABS

Warning Lights both brake warning lights should come on when the ignition is turned on this confirms that the warning circuit is operational

Service Tips check wheel speed sensors for debris build-up check tone rings for damage/debris check sensor wiring & connectors mismatched tire sizes confuses EBCM

Service Tips do NOT push caliper pistons in without loosening bleeder screw this prevents dirt from being pushed out of the caliper & into the modulator regular brake fluid flushes (every 2 years) will minimize modulator & solenoid problems & extend their life span