Operation CHARM: Car repair manuals for everyone.
Manuals through 2025 now available!

Our trusted friends have launched a new website named LEMON, which has newer manuals. It also contains all the CHARM manuals.

LEMON is the spiritual successor to CHARM, I recommend you try it!

Link: lemon-manuals.la or lemon-manuals.org.ua

(Some people have issue connecting. LEMON is investigating. For now, use Firefox or change your DNS server)

Or, hide this message: temporarily or permanently

Anti-Lock Brakes Bleed

Anti-Lock Brakes Bleed

Note:
^ Bleeding the hydraulic control unit (HCU) is required only when removing or installing the HCU or master cylinder, or opening the lines to the HCU

Note:
^ Carrying out the System Bleed function drives trapped air from the HCU. Subsequent bleeding removes the air from the brake hydraulic system to the bleeder screws.

Note:
^ Adequate voltage to the HCU module is required during the anti-lock control portion of the system bleed

1. Connect the Worldwide Diagnostic System (WDS) or equivalent Tester.
2. Access the SYSTEM BLEED FUNCTION. Go to the Tool Tab-Chassis-Braking-ABS Service Bleed and follow the directions in the diagnostic tool.
3. Manually bleed the brake hydraulic system.
4. Repeat the procedure carrying out a total of two Worldwide Diagnostic System (WDS) or equivalent Tester cycles and two manual bleed cycles.