hey
@DustyCrevice so for everyone to help, post all the stats, miles, last oil change, original owner, water pump changed, mods, history of anything you could and definitely any codes coming from the computer. to truly help, videos and pictures assist, but arent too great when someone like this is happening.
For a 2012–2019 Ford Taurus SHO, you can access what’s known as
Engineering Test Mode. This is a hidden diagnostic menu built directly into your instrument cluster. It won't require any tools and works even if the car isn't driveable, as long as your battery has enough power to light up the dash.
Since your SHO likely has a
Push-Button Start, the process is a little different than the "key trick."
How to Access "Engineering Test Mode"
- Preparation: Make sure the ignition is completely OFF.
- The Hold: Press and hold the OK button on the left side of your steering wheel.
- The Power: While continuing to hold the OK button, press the Start button once (do NOT press the brake pedal; you want the dash to turn on, but the engine to stay off).
- The Wait: Keep holding the OK button for about 5–10 seconds.
- Success: The left-hand screen on your dash will suddenly change and say "ETM" or "Engineering Test Mode." You can now let go of the button.
Finding the Codes
Once you are in the menu, use the
Up/Down arrows on your steering wheel to scroll through the data.
- You will see things like "Gauge Sweep," "ROM Level," and "Battery Voltage."
- Keep scrolling until you see "DTC" (Diagnostic Trouble Codes).
- If it says "DTC: NONE," the car isn't currently storing a code in that specific module.
- If there is a code, it will look like a sequence of letters and numbers (e.g., P0302 or C1234).
If that doesn't work (or if ETM says "None"):
If the car is truly stuck in your driveway and the hidden menu isn't giving you the answer, you have two "newbie-friendly" options:
- The "Loner" Tool: Most AutoZone or O'Reilly stores will actually loan you a code reader for free. You pay a deposit, take it home, plug it in, get your code, and bring it back for a full refund.
- Amazon Bluetooth Dongle: For about $15–$20, you can buy a tiny "ELM327" Bluetooth adapter. You plug it into the port under your steering wheel, and it sends the codes directly to a free app on your phone (like Car Scanner or Torque). It’s the easiest way to get professional-level info without being a "car person."