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

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Fuel Temperature Sensor: Testing and Inspection

FUEL TANK TEMPERATURE SENSOR






CAUTION: After finishing this test, wipe the unit dry and install it in the fuel tank.

1. Connect the fuel gauge unit (with temperature sensor) , fuel tank temperature sensor to the battery via a test light (12V - 3.4W). Immerse in water.
2. Condition is good if the light goes off when the fuel tank temperature sensor is immersed in water and comes on when it is taken out of water.
3. If all check result are correct, the fuel gauge unit is OK. If either check result is not correct, replace the fuel gauge unit.