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

W/O VSS






Electronic control module voltage supply
+ 30 Voltage supply to the control module is direct and not fused. The US/CA control module receives + 30 voltage supply from fuse 23.
+ 30 supplies all the control module functions except ignition (+ 15 and + 50).

Electronic control module ground
Electronic control module main ground (pin 13) is connected to grounding point G14.