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

ECU Connector Inspection


1. Disconnect control unit electrical connector and connect ohmmeter between terminal 16 and ground, then between terminal 17 and ground.
2. Reading of zero to .3 ohms should be obtained. If reading cannot be obtained, check for loose or corroded electrical connector terminals.