Signal Too Low
Signal too low
Checking fuel level sensor resistance
Note! The Volvo All-wheel drive (AWD) has a different fuel tank with two fuel level sensors connected in series.
- Ignition off.
- Disconnect fuel level sensor connector according to Replacing sensor Replacing Sensor.
Connect an ohmmeter between terminals 1 and 2 in the fuel level sensor connector.
The ohmmeter should read 8-330 ohms, depending on fuel level.
OK - Checking signal to fuel level sensor
Not OK - Replacing component
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Replacing component
Try a new fuel level sensor according to
- Replacing sensor Replacing Sensor.
Continue - Verification
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Checking signal to fuel level sensor
- Ignition on.
- Fuel level sensor disconnected.
Connect a voltmeter between terminals 1 and 2 in the fuel level sensor connector (cable harness side).
The voltmeter should read 68 V.
OK - Checking fuel level sensor resistance
Not OK - Checking for a short-circuit to ground
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Checking for a short-circuit to ground
Check cable between combined instrument panel #A5 and fuel level sensor connector terminal 1 for a short-circuit to ground according to Checking wiring and terminals. Permanent fault Checking Wiring and Terminals. Permanent Fault.
Continue - Verification
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Checking fuel level sensor resistance
- Ignition off.
- Remove fuel level sensor according to Replacing sensor Replacing Sensor.
- Turn fuel level sensor upside down.
Connect an ohmmeter between terminals 1 and 2 in the fuel level sensor connector.
The ohmmeter should read 8-12 ohms.
OK - Faulty signal. Intermittent fault
Not OK - Replacing component
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Replacing component
Try a new fuel level sensor according to Replacing sensor Replacing Sensor.
Continue - Verification
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Verification
Hint: After carrying out the repair check that the fault has been remedied.
- Ignition off.
- Reinstall connectors, components etc.
- Connect combined instrument panel.
- Test drive the car at speeds above 20 kph, alternatively lift up the front suspension safely and remove both front wheels.
Warning! Cars with AWD, test drive the car at speeds higher than 20 kph, alternatively lift up the front and rear suspension safely and remove all wheels.
Note! When the rear wheels are stationary and the front wheels rotate, diagnostic trouble codes (DTCs) may be stored in the ABS system. Erase any diagnostic trouble codes (DTCs) stored in the ABS system after fault-tracing.
Note! Ensure that the front wheels are not rotating when the gear selector is moved.
- Ignition off.
- Disconnect the Volvo Scan Tool (ST) from the VIDA station. Use it as a stand alone tool and connect it to the data link connector (DLC) in the car.
- Ignition on.
Read off the diagnostic trouble code (DTC) counters.
Is counter value greater than 0?
Yes - FAULT FOUND
No - Fault-tracing information
No Fault Found
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Fault-tracing information
Information
Fault-tracing information
The fault should have been detected and remedied. As this is not the case fault-tracing has failed.
Exit fault-tracing for this diagnostic trouble code (DTC) or make another attempt.
Do you want to exit fault-tracing?
Yes - Exit fault-tracing
No - Attempt New Test
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Attempt New Test - Checking fuel level sensor resistance
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Faulty signal. Intermittent fault
Faulty signal. Intermittent fault
Checking cables and terminals
Check fuel level sensor for an intermittent short-circuit to ground.
Check cable between combined instrument panel #A5 and fuel level sensor for an intermittent short-circuit to ground according to Checking wiring and terminals. Intermittent faults Checking Wiring and Terminals. Intermittent Faults.
Continue - Fault-tracing information
DONE
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Fault-tracing information
Information
Fault-tracing information
If the fault is intermittent, do not verify fault-tracing if the fault does not recur.
It is possible to view the information again, or leave fault-tracing for this diagnostic trouble code (DTC).
Do you want to view the information again?
Yes - Attempt New Test
No - FAULT FOUND
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Attempt New Test - Checking fuel level sensor resistance
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