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

Fuel Level Sensor: Description and Operation



Fuel Tank Level Sensor

Description

There are three fuel level sensor diagnostic checks, a fault is detected if:-
1. The fuel consumption calculated by the ECM and the change in the fuel tank level differs by 15%.
2. The fuel level signal received from the instrument pack is greater than or equal to 127%.
3. No fuel level signal has been received from the instrument pack within the last 2.5 seconds.