Safety Warning
DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.
Reading Off Input And Output Signals
Using this function, the values and status of the control module input and output signals can be continuously read off.
The following parameters can be read off:
- speed, input signal
- engine speed (RPM), input signal
- engine coolant temperature (ECT), input signal
- outside temperature, input signal
- manipulated odometer
- fuel volume, calculated / attenuated
- gas volume, calculated / attenuated
- gas fuel finished
- status of the clock adjustment knob, input signal
- trip computer reset button, input signal
- trip computer mode selector, input signal
- trip odometer reset button, input signal
- high engine coolant temperature (ECT), warning lamp
- low fuel level, warning lamp
- outside temperature warning lamp
- mileage since service
- mileage to service
- engine hours since service
- time since service
- time remaining until service
- engine hours to service.
For further information about parameters, see Description of parameters .
Use the Manual With the Right Hardware
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When to See a Mechanic
Stop DIY work and contact a certified mechanic immediately if any of the following apply:
- • You smell fuel, burning insulation, or see smoke.
- • Brakes feel soft, pull hard to one side, or make grinding noises.
- • The engine overheats, stalls repeatedly, or misfires under load.
- • You are missing required tools, torque specs, or safe lifting equipment.
- • You are not confident in the next step or safety outcome.