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

A1 Check Power to Anti-Lock Brake Control Module







- Disconnect anti-lock brake wiring plug from anti-lock brake control module.

- Connect EEC-IV Breakout Box 014-00322 with Anti-Lock Test Adapter T90P-50-ALA or equivalent to the anti-lock brake wiring plug wiring harness.

- Set multi-meter to read volts DC.

- Turn ignition switch to RUN.

- Measure voltage between breakout box pins 53 and 60.

- Is there a minimum of 10 volts?

YES -- Go to A4. A4 Check Ground

NO -- Go to A2. A2 Check ABS Control Module to Ground Wire