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)

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Output Components

Diagnose the output components for the proper response to PCM commands. Components where functional monitoring is not feasible will be monitored for circuit continuity and out-of-range values if applicable.

Output components to be monitored include, but are not limited to, the following circuits:
^ The Idle Air Control (IAC) motor
^ The Evaporative Emission (EVAP) system
^ The electronic transmission controls
^ The A/C relay, if so equipped
^ The Vehicle Speed Sensor (VSS) output
^ The Malfunction Indicator Lamp (MIL) control
^ The cruise control enable, if so equipped