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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Cruise Control: Adjustments

The cruise control system utilizes a lash learn system to compensate for any minor slack in the servo linkage due to tolerance stack-up or build error. The lash learn term is generally calculated when the PCM receives a cruise set command and the throttle is fully relaxed. The PCM calculates the servo position movement to offset the throttle position movement. The PCM uses this value to subsequent servo position commands.

To perform lash learn, perform the following procedure:
1. Drive vehicle to approximately 50 mph.
2. Take foot off accelerator for three seconds.
3. Engage cruise Set/Coast button.