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

Clutch Switch: Description and Operation

PURPOSE
The Powertrain Control Module (PCM) uses the Clutch Pedal Position Switch (input) to determine engine load and adjust engine operating parameters according to PCM programming.


View: Test Connections:





OPERATION
The PCM sends out a 5 Volt reference signal through PCM terminal No.30 to the Clutch Pedal Position Switch.

- With the clutch pedal DEPRESSED the 5 Volt reference signal flows through the Clutch Pedal Position Switch and returns to the PCM at a common ground at PCM terminal No.46.
- With the clutch pedal RELEASED current flow is interrupted and the PCM senses no current flow through PCM terminal No.30.