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 logical successor to CHARM, I recommend you try it!

Link: lemon-manuals.la

Speed Control

PURPOSE
This input informs Powertrain Control Module (PCM) of speed control switch status, (ON/OFF, SET, or RESUME).

OPERATION
On/Off: The speed control system has been activated or deactivated by the driver.

Set: The current vehicle speed has been selected by the driver.

Resume: The previously SET speed has been requested by the driver.