P075F: Transmission Fluid Level Too High

What it means

The transmission fluid level is reported as too high. The code does not identify the cause or indicate that coolant contamination is present.

At a glance

• Usually lights the check-engine light

How it works

The transmission fluid level monitoring system reports whether the fluid is within its intended range. This code indicates that the reported level is too high; the cause may be overfilling or a fault in the level sensor or its circuit, and the code alone does not establish contamination.

Common causes

Most likely first.

1. Transmission fluid overfilled
2. Fault in fluid level sensing or circuit

Symptoms

• Transmission warning light on
• Abnormal shifting may occur

How to diagnose it

1. Record freeze-frame data and related transmission codes, then check live fluid-level data if the vehicle provides it.
2. Check for fluid leaks or signs of recent service that may have resulted in overfilling.
3. Verify the fluid level using the manufacturer's specified temperature, vehicle position, and checking procedure.
4. Inspect the fluid-level sensor connector and wiring for loose contacts, corrosion, or damage.
5. If the measured level is correct but the code returns, test the sensor and circuit according to the manufacturer's procedure.

Common fixes

• Remove excess fluid if the level is above the manufacturer's specified range.
• Correct the checking conditions and recheck the level if the original reading was taken incorrectly.
• Repair damaged wiring or a poor connection at the fluid-level sensor.
• Replace the fluid-level sensor if it fails the manufacturer's test.

Can I keep driving?

If shifting is normal and the level has not been confirmed, keep driving to a minimum until it is checked using the correct procedure. An actual overfill can cause foaming or fluid leakage and may lead to abnormal shifting or transmission damage.