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

Malfunction Indicator Lamp: Testing and Inspection

DIAGNOSTIC TEST MODE 1 - BULB CHECK
To Test - Turn ignition switch "ON". Do not start engine. In this mode, the malfunction indicator lamp in the instrument panel stays "ON". The LED indicator lamp in the ECCS Control Module is also "ON". If either lamp remains "OFF", check the bulb in the malfunction indicator lamp.