If you own a Mach 3 Mondeo, earlier Mondeos, Mark 1 & 2 Focus or some other Ford models, there’s a hidden diagnostics menu that you may not have explored in detail. This menu, to be precise, is the instrument cluster self-diagnostic mode. In this mode, you can access a variety of tests and information that can be helpful for diagnostics.
Accessing this menu is quite simple. You just need to find the trip meter reset button, typically located on the right side in a Mondeo, and hold it down while turning the ignition switch to position 2 or starting the engine. Once you see “tests” displayed on the LCD, you can release the button. The cluster will then perform a gauge sweep test and reset the trip meter to 0.
After the initial test, you can cycle through various modes and tests by pressing the reset button. The information and tests you can access may vary depending on your car model, but typically include gauge tests, LCD tests, cluster bulb tests, cluster ROM data, diagnostic trouble codes, vehicle speed readout, engine RPM readout, fuel level, coolant temperature, and battery voltage.
It’s important to note that this menu does not provide a complete OBD reader functionality, but it does offer some useful real-time data that can be convenient for basic diagnostics without the need for an OBD scan tool.
Exiting this menu is as simple as pushing the trip reset button again until it exits back to normal mode or by turning off the ignition. The next time you start the car, it will be back to its normal display.
While this hidden diagnostics menu doesn’t offer a complete readout of OBD-II code data, it does provide access to some useful real-time information and tests directly from the instrument cluster. This can be handy for quick checks and initial diagnostics.
Below is an ordered list of the Mondeo modes for your reference. Do remember that the options available for your specific car may vary slightly. Have fun exploring this hidden feature!
How do I access the hidden diagnostics menu in my Ford Mondeo?
To access the hidden diagnostics menu in your Ford Mondeo, find the trip meter reset button and hold it down while turning the ignition switch to position 2 or starting the engine. Wait until you see tests displayed on the LCD, then release the button. You can then cycle through various modes and tests by pressing the button.
What tests are available in the diagnostics menu?
The diagnostics menu includes tests such as gauge suite test, LCD test, cluster bulbs test, data related to the ROM of the cluster, diagnostic trouble code section, vehicle speed in miles per hour and kilometers per hour, engine RPM readout, fuel level reader, coolant temperature, and battery voltage readout.
How do I exit the diagnostics menu?
You can exit the diagnostics menu by pushing the trip reset button until it returns to normal mode or by turning the ignition off. The next time you start the car, it will be back to normal.