P28E4

Q: Can I keep driving with this code?

The vehicle is usually drivable for short distances, but the problem can worsen or affect emissions. Diagnose and repair as soon as practical. Use the Wrenchify app for a full diagnosis specific to your vehicle.

Shift Motor Driver Current/Temperature Too High

High severity

The output driver for the shift motor reports current or junction temperature above its protection threshold. Sustained high load or short-circuit fault.

Common causes

Motor stalled - high stall current
One of the most commonly reported causes for this code — check this first.
high
Typical part cost: $440-2420
Short between motor phases
A plausible cause — test and verify before replacing parts.
medium
Typical part cost: $440-2420
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First things to check

1Confirm the code with a scan tool and check for additional related codes.
2Inspect the relevant sensors, wiring, and connectors for damage or corrosion.

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Related codes

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Frequently asked questions

What does P28E4 mean?

P28E4 means "Shift Motor Driver Current/Temperature Too High". It is a generic OBD-II code that points to a fault in the auxiliary emission controls.

What are the most common causes of P28E4?

motor stalled - high stall current; short between motor phases — these are the most commonly reported causes. Verify with a proper diagnosis before replacing parts, or use the Wrenchify app for a vehicle-specific diagnosis.

Can I keep driving with this code?

This code can put the vehicle into limp or reduced-power mode. Avoid extended driving and have the vehicle diagnosed promptly. Use the Wrenchify app for a full diagnosis specific to your vehicle.

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