Before we send the ABS pump for regeneration, we must make sure that another component of the anti-lock braking system is not to blame. First, we will check the plugin. We unplug it by pulling the lever, which moves the locking bolt, and at the same time disconnecting and removing the plug from the ABS controller socket. Let's first visually check the plug to see if it is wet or shows any signs of corrosion.
ABS failure — where to start. Before we send the ABS pump for regeneration, we must make sure that another component of the anti-lock braking system is not to blame. First, we will check the plugin. We unplug it by pulling the lever, which moves the locking bolt, and at the same time disconnecting and removing the plug from the ABS controller socket. Let's first visually check the plug to see if it is wet or shows any signs of corrosion. If we have access to the controller, pay attention to the pins that are located in the socket where the plug was. What is their condition, are they rusty or even rotten? Is the socket wet, which may cause corrosion inside it? Then we will check the pins visually to make sure they are not bent or broken. Installing such a plug incorrectly or too nervously may result in breaking the delicate pins. Sometimes the location of the ABS pump makes such verification impossible. We can help by taking a photo with a mobile phone.
We can also check the plugin itself. So we have to dismantle it first. It is folded with latches. Let's disassemble them carefully so as not to damage them. We visually check its interior and the plug's wiring harness to see if it is damaged or broken. Later in the verification, we will need a meter. We check whether all the pins in the plug are well connected to the wires. At this stage we can also check whether there is a short circuit between the pins. Let's also check if there is voltage to the plug. If not, let's check the appropriate fuses. Let's check with a meter whether all sensors in the wheels have the appropriate resistance.
The next step may be to check the sensors and the pump under load. For this we need to prepare an appropriate indicator, consisting of wires and a light bulb. We use a 5W bulb, of course 12 V, for the sensors in the wheels. During such "over-calling". We check the circuits for a voltage drop below 12V. Similarly, we check the power supply of the pump motor and the power supply of the valve coils, except that we use a light bulb of at least 55W.
If all these tests show nothing, we are sure that the ABS pump has failed. Depending on the failure, the controller itself can be sent for regeneration. Sometimes, however, the repair will be more complex and the entire pump will have to be sent. Our consultants and technicians will advise you what to do next with the pump based on the type of device and types of errors.
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