P070ATransmission Fluid Level Sensor Circuit
- Generic OBD-II code · Powertrain
- How the car detects it
- Fluid level sensors in the transmission sump (capacitive or voltage-based) report the oil level to the transmission module; measurements are only valid under defined conditions – an Allison patent names fluid temperature, vehicle at rest, low input speed and a tilt correction. Such sensors are mainly found in heavy automatic transmissions. No manufacturer document available to us uses this code. P070A is the general circuit fault of this sensor (open or fault in the signal circuit). Because the oil level does not usually affect emissions directly, a rating without the check engine light is likely; expect a transmission warning or a missing level display. An actually low oil level is not a P070A fault. Range, low, high and intermittent are P070B–P070E; fluid temperature has its own codes (P0710 ff).
- What you may notice
- Transmission warning or 'check fluid level' message
- Fluid level display missing
- Usually no driveability problems
- Likely causes
- LikelyFluid level sensor faulty
- PossibleWire or connector to the sensor (often through the sump or transmission connector) open or oil-soaked
- RareTransmission module input faulty
- Repair
- Medium · Usually a job for a workshop.Typical cost: €100 – €500
- Related codes
Explanation from obdex (CC0), exactly as the app shows it. Guidance only; confirm with a workshop.