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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Component Inspection

SENSOR INSPECTION
Check to look that fuel level is over 15%. if not , this inspection is not available.
The vehicle must be in turn-on and at idle. Don't forget it.
1. Prepare a voltmeter and connect it to FTP pins as shown.





2. After 20 min. idling, inspect the voltage

System voltage 5 V
At accelerate Max. 4.5 V, Min. 0.5 V






3. At idle, inspect that voltage fluctuates up to accelerate rpm up and down.

NOTE: If voltage is not within specification as procedures, there is leakage and inspect the fuel tank and hoses toward canister and fuel neck. Then repair or replace relevant parts.