Volvo’s trucks are a model of technological advancement and reliability. However, their components and parts also fail, requiring a quick response.
Control units and error codes are designed for this purpose. They are the first to notify of malfunctions and breakdowns. To understand the details of the process, we recommend learning more about Volvo errors on our manualmachine.com
Understanding and Deciphering Errors
The abbreviation MID 136 itself refers to the brake control unit for Volvo trucks. This means it is one of the most important components responsible for the safety of the vehicle, driver, and cargo.
However, the code itself is a triple digit, where the other two represent the following:
- SID is the subsystem identifier. This could be a wheel speed sensor, a solenoid valve, or other components. This parameter allows for more precise identification of the component from which the signal originated.
- FMI indicates the type of fault, such as an open circuit, an inaccurate signal, or other variations.
In addition to the letter designations, the code has numerical indicators that specify the type of fault.
Each indicator has its own precise meaning depending on the alphanumeric combination. For example, MID 136 SID 1 FMI 5 indicates an incorrect signal from the left front wheel speed sensor, while MID 136 SID 7 FMI 14 indicates a faulty ABS control unit. The precise meaning of all codes is provided in the table.
Repair Methods
The repair method depends on the type of malfunction. Common causes include: wiring and connector issues, which are especially common in the fall and winter; faulty sensors, valves, or the entire control unit.
Methods for troubleshooting MID 136 include:
- Check the condition of the wiring and contacts, tightening or replacing them.
- Cleaning or blowing out the wiring can be performed to remove rust and oxidation.
- Faulty sensors require replacement.
- If the valves are faulty, check their power supply and coil resistance. Replacement is often necessary.
- The control unit can be reprogrammed, but if the error reoccurs, it must also be replaced.
Ignoring these errors is highly discouraged. Diagnosis and corrective measures should be carried out immediately, preferably at a specialized Volvo truck service station. This approach ensures safe operation of the vehicles.