We will take time only for those combinations that are most often found in Volvo cars. In fact, these codes – not one thousand, but all of them we will not consider. Explanation of fault codesĬonsider a description of the combinations of errors that can occur when diagnosing Volvo cars. To obtain more accurate information on faults, it is recommended to diagnose the vehicle on specialized equipment. The on-board computer may not display a fault. Take into account the fact that self-diagnosis can be inaccurate. Indicator with LED lamp for diagnostic purposes The LED light will start to flash: with its help you need to read the error codes and decode them.Next, you need to press the button located on the indicator (it is not necessary to hold it for a long time).In particular, the positive terminal should be connected to the 16th connector, and the minus one to the fourth connector, simultaneously connecting the probe to the socket with the corresponding block for diagnostics. For machines manufactured after 1995, you need to connect the indicator to the OBD-2 connector. Insert the probe block for diagnosis into the socket pads (for models of cars produced before 1995).Turn the ignition key without starting the engine.

How to make a diagnosis? This question is of interest to every owner of Volvo, faced with the need to decipher the combinations of faults. To find out exactly where your Volvo has a connector for diagnosing error codes, we recommend that you use the operating manual for your car. Old type diagnostic connector in Volvo cars

B6 is responsible for the operation of the seat control system.

В5 – to check up working capacity of system of safety, in particular – pillows.

connector В2 – to diagnose the speed-keeping system in automatic mode.

connector В1 allows the motorist to check the efficiency of climate control and air conditioning.

A7 allows you to check the instrument panel of the car.

connector A6 allows you to check the ignition system for malfunctions.

connector A5 – for the diagnosis of automatic transmission – TCU.

connector A3 – for checking the ABS unit.

connector A2 is responsible for diagnosing the engine, in particular – the fuel system.

connector A1 is responsible for diagnosing the automatic transmission.

In the case of the OBD-2 connector, car enthusiasts should not have questions, but if there is an old type diagnostic connector in your car, then it will be useful to know that: The photo shows a diagnostic connector of a new type (for cars after 1995 of release) The location of the diagnostic connector in the Volvo car on the left side of the torpedo under the instrument panel.

Volvo trouble code list