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.
Tire Pressure Monitoring System (TPMS)
The Upper electronic module (UEM) may store diagnostic trouble codes (DTCs) in the event of an error in the actual receiver or in a sensor. In order to carry out a correct evaluation of the function, the vehicle must have traveled faster than 40 km/h (25 mph) for longer than 570 seconds (approximately 9.5 minutes). This time is accumulated time, i. e. the counted time is interrupted if the vehicle travels slower than 40 km/h (25 mph), if for example, stopping at traffic lights. Counting continues as soon as the vehicle exceeds 40 km/h (25 mph). The Upper electronic module (UEM) can store two diagnostic trouble codes (DTCs) per sensor. A diagnostic trouble code (DTC) for lost communication and a diagnostic trouble code (DTC) for low battery voltage. When a diagnostic trouble code (DTC) is stored the ID number is also stored on the sensor which the diagnostic trouble code (DTC) applies to. When a diagnostic trouble code (DTC) is stored a message is shown in the Driver information module (DIM).
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.
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