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

Antilock Brakes / Traction Control Systems: Service and Repair


Ensure pump is not allowed to run for more than 60 seconds at one time. If pump must be run longer, allow pump to cool for several seconds between 60 second runs.
1. Depressurize accumulator, refer to DEPRESSURIZING HYDRAULIC ACCUMULATOR procedure.
2. Fill reservoir to full mark using DOT 3 brake fluid or equivalent.