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

Variable Valve Timing Pressure Switch: Testing and Inspection

INSPECTION

1. Warm engine up to operating temperature (cooling fan comes on).
2. Turn ignition switch off.

VTEC Pressure Switch Connector Terminal Identification.:





3. Disconnect the two pin connector at the VTEC Pressure Switch. Check for continuity between the terminals on the SWITCH. If no continuity measured, replace switch.