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

Sending Unit Operation Check

When a problem occurs with a cluster gauge check for a defective sending unit or wiring. Do this before disassembling the cluster.
1. Sending units and wiring can be checked by grounding the connector leads at the sending unit in the vehicle.
2. With the ignition in the ON position, a grounded input will cause the fuel or temperature gauge to read at or above maximum.