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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Double Relay, Checking



Checking The Double Relay






- Detach relay from firewall (do not unplug connectors)
- Check for voltage at terminals at relay by attaching one lead of test light to terminal 85 and touching other lead to following:
86a
88y
88d

- Operate starter
Test light must light up

If NO, check wire to battery or inline fuse
If wire or inline fuse OK, double relay defective and must be replaced