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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Fuel Gauge Not Operating Properly




Test 1 - 2:




Test 3 - 5:




Test 6 - 9:






SYMPTOM
FUEL GAUGE NOT OPERATING PROPERLY

POSSIBLE CAUSES
- Body control module
- Instrument cluster
- Instrument cluster
- Visual condition not good
- Check for fuel level sending unit related BCM DTCS
- Determine if full gauge is inaccurate
- Fuel gauge displays empty
- Fuel level sensor signal circuit shorted to ground
- Observe the fuel gauge
- Inspect the fuel pump module and the fuel tank
- Instrument cluster self test