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

Lighting and Horns: Testing and Inspection



1. For lamps that will not light:

^ Check that the tail dome, stop horn, turn back or hazard fuse is good by checking other lamps powered by the same fuse.
^ Note the condition of the ground wires for the affected lamps.
^ Check that the turn/hazard relay is securely mounted into its connector cavities.


2. For lamps that will not go out:

^ Check the lead wire from lamps for a short to voltage.
^ Check that the turn/hazard relay is not stuck closed.