First, locate the ABS Sensor you want to test. This will usually be near the wheel hub, on the inside of the wheel well. Use a multimeter to test the resistance of the sensor. Set the multimeter to the resistance setting, and touch the leads to the sensor’s terminals. Check the multimeter’s reading.
They are used by the control units in driving assistance systems such as ABS, TCS, ESP, or ACC in order to detect the wheel speed. The wheel speed information is also provided to other systems (engine, transmission, navigation, and chassis control systems) via data lines by the ABS control unit. As a result of their varied use, speed sensors
HOW TO TEST ABS PUMP without removing it MS908P Scanner:
The ESP System Function or Road Test serves to check the Plausibility of the Signals. from the Lateral Acceleration Sensor (G200), Rotation Rate Sensor (G202) and Brake Pressure Sensor (G201). The ESP System Function Test should be performed after all major work on the Brake System, in some cases the Brake Electronics Control Module (J104) may
NOTE: Use 88 Digital Multimeter with the minimum resistance hold feature enabled for this test.Monitor the resistance between an anti-lock brake sensor terminal and ground on the highest resistance scale of the meter, while wiggling the electrical connector. If the meter shows anything but open circuit, replace the rear anti-lock brake sensor.
Confirmation on RABS/RAWL System. 1. Remove the cap screw and low-pressure accumulator spring. 2. Insert a solid spacer in place of the spring to prevent the low-pressure accumulator piston from moving. Install the cap screw. (See Figure 44.7). 3. Start the vehicle and check the brake pedal.
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how to test abs system
