Monitor Mode

1. After tester has been powered up and ABS-System Version selected, tester will automatically enter MONITOR MODE.
2. MONITOR MODE can be used to test wheel speed, wheel signal strength, sensor wheel eccentricity (out-of-round) and accumulator pressure (if pressure sensor is connected).
3. Tester will bleep each time a fault is found.
4. To test Road-Wheel speed, proceed as follows:
a. Drive vehicle at a steady speed.
b. Km/h will appear on display together with a number, indicating speed of wheel.
c. The tester will begin the test with the FR (front right) wheel, which will be indicated on the display screen.
d. To test speed of other wheels, press top FUNCTION button, wheels will now be tested in a counterclockwise sequence.
e. Values for wheel speed should be approximately the same.
5. To test accumulator pressure, connect pressure sensor, refer to CONNECTING PRESSURE SENSOR. Working pressure of the accumulator will be displayed in bar. Some of the valve segments may flash during this test, this is quite normal and can be disregarded.
6. To test Wheel-Sensor signal strength, proceed as follows:
a. Drive vehicle at a steady speed, then press top FUNCTION button for about three seconds.
b. The letter ``A'' will be displayed along with a value proportional to signal voltage.
c. The tester will begin the test with the FR (front right) wheel, which will be indicated on the display screen.
d. To test speed of other wheels, press top FUNCTION button, wheels will now be tested in a counterclockwise sequence.
e. The voltage values for the wheels should be within 20 percent of each other.
7. To test Sensor-Wheel eccentricity (out-of-round), proceed as follows:
a. Drive vehicle at a speed of 25-30 mph for a minimum period of sixty seconds, then press bottom function button for three seconds to start test.
b. The letter ``E'' will appear on the display together with a number indicating ratio of amplitude variation to maximum amplitude during one revolution of the wheel. This value should not be higher than 6.
c. The front right wheel sensor will the first one tested, to test the other wheels press top FUNCTION button.
d. Other wheel sensors will now be tested in counterclockwise direction.