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
Test Light
Test LightThe test light, as shown in figure, uses a
12 V bulb. The two lead wires should be connected to probes. The test light is used for simple voltage checks and in checking for short circuits.
CAUTION: When checking the engine control module (ECM), never use a bulb exceeding
3.4 W.