P0814: Transmission Range Display Circuit
What to do
If your gear selector is a lever that stays where you put it, this is largely cosmetic. If it is a rotary dial or a spring-loaded electronic selector that returns to centre, the display is your only confirmation of the selected gear — treat it as urgent, and be deliberate about checking the vehicle's direction before releasing the brake.
What this code means
A fault in the circuit driving the gear position display. On a vehicle with a conventional mechanical selector this is close to cosmetic — the lever's own position tells the driver what is selected, and the display merely confirms it.
On a vehicle with an electronic shifter it is not cosmetic at all. Monostable and rotary selectors return to a neutral resting position after every input and give no tactile indication of the gear chosen, so the display is the only confirmation of what the vehicle will do when the brake is released. Losing it on such a vehicle removes the driver's sole means of knowing whether it is in drive or reverse, which is a genuine hazard rather than an inconvenience.
Likely causes
Start here
- Open circuit in display wiring · moderate
- Faulty transmission range sensor · moderate
Less common
- Corroded or loose connector · easy
- Failed instrument cluster · specialist
Symptoms
Components involved
Information, not instruction
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Have anything you intend to act on checked by a trained person against the manufacturer's own procedure for your vehicle. Nothing here replaces that procedure.
Community experience
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