Auto Bleed Procedure

1. Raise vehicle and support.
2. Remove all four wheels.
3. Inspect brake system for leaks or component damage. Correct all conditions found before starting procedure.
4. Assure vehicle battery is fully charged before beginning procedure.
5. Connect scan tool to DLC.
6. Turn ignition to RUN. Do not start engine.
7. Establish communications with scan tool and select ABS/TCS/ICCS system features.
8. Select Special Tests
9. Select Automated Bleed Procedure.
10. Bleed base brake system as instructed in BRAKES.
11. Follow scan tool menu-driven instructions until proper brake pedal height is achieved. If any malfunctions are detected, the bleed procedure will be aborted. If DTCs are present, the scan tool will display DTCs PRESENT, or list the DTCs, depending on when the DTCs were set. DTCs can be displayed or cleared as appropriate in the TROUBLE CODES mode. Refer to the correct service manual section for those DTCs. If test is aborted but no DTCs are listed, go to the Diagnostic System Check. Correct all system malfunctions before attempting the bleed procedure again. If a road test is required for diagnosis and brake pedal is spongy, perform a conventional brake bleed, achieving a firm pedal before driving vehicle.
12. When auto bleed procedure is complete, depress brake pedal. It should be high and firm. If not, reinspect the brake system thoroughly for any conditions which could cause excess brake pedal travel. Refer to BRAKES for details. If brake system is OK, and excess pedal travel persists, repeat auto bleed procedure.
13. Disconnect the scan tool. Reinstall wheels and tires and lower vehicle. Check brake fluid level in reservoir and fill if necessary. Road test vehicle, making several ABS and traction control actuation's in a suitable area. Brake pedal should remain high and firm after road test.