D. Bleed Brakes and Verify Proper System Operation

1. IF THE ACTUATOR ASSEMBLY WAS REPLACED, the brake lines must be bled as described on pages 135 of the revised Bendix Antilock 9 & 10 Service and Diagnostic Procedures Manual (81-699-96225).

NOTE:
It is not necessary to bleed the foundation brakes of the vehicle if only the pump/motor assembly has been replaced.

2. Turn the ignition to the RUN position to energize the pump/motor and pressurize the hydraulic system. Check for leakage at the HCU and/or pump/motor.

3. Check the brake fluid level in the HCU reservoir and adjust as necessary.

4. With the ignition key in the ON position, perform the ABS System Test using the DRB II and then monitor the DTC display for four minutes.

^ If any DTC's are displayed, they must be diagnosed and repaired in the order that they are listed on page 51 of the Bendix Antilock 9 & 10 Service and Diagnostic Procedures Manual (81-699-96225).

^ If no DTC's are displayed, continue with Step 5.

5. Road test the vehicle for a minimum of 5 minutes at various speeds while performing several antilock braking and normal braking stops.

6. With the ignition key in the ON position, check for DTC's.

^ If any DTC's are displayed, they must be diagnosed and repaired in the order that they are listed on page 51 of the Bendix Antilock 9 & 10 Service and Diagnostic Procedures Manual (81-699-96225).