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

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Test C: The Set Speed Fluctuates

PINPOINT TEST C: THE SET SPEED FLUCTUATES


C1-C2:






Normal Operation
The speed control actuator receives a speed signal from the anti-lock brake system (ABS) module over the standard corporate protocol (SCP) network. The speed control actuator controls the throttle position through the speed control cable.

Possible Causes
- Speed control cable
- Speed control actuator
- Throttle body lever
- ABS