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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High Pressure Sensor, Multi-Pin Connector Assignments






High Pressure Sensor, Multi-Pin Connector Assignments





Contact 1: Ground (GND)

Contact 2: Square wave signal (output) to Coolant Fan Control (FC) Module (J293) and Motronic Engine Control Module (ECM) (J220)

Contact 3: Terminal 15 (ignition on)

A/C Clutch (N25) is switched off when connector - B - is disconnected