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)

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F9 Check ABS Control Module Ground







- Ignition switch OFF.

- Measure resistance between pin 1 (BK) of the 4-pin connector and ground.

- Is the resistance less than 5 ohms?

YES -- Service circuit 57 (BK) for open.

NO -- Replace anti-lock brake control module

Connector:





Pin Number Circuit Circuit Function

1 57 (BK) Ground
2 603 (Y) Anti-Lock Indicator Output
3 276 (BR) "RUN" Power
4 601 (R) Battery Power
5 Guide Pin