P0462
PowertrainFuel Systemlow severityFuel Level Sensor Circuit Low Input
What P0462 Means
Low voltage from fuel level sensor (stuck on full or empty depending on design).
Symptoms
- Gauge reads empty constantly
- Low fuel warning always on
Common Causes
- Short to ground
- Faulty sensor
- Corroded wiring
Diagnostic Steps
- Test circuit voltage
- Check for shorts
- Test sensor resistance
Where to start: Repair or replace sender.
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