Montero SR 4WD V6-3.5L SOHC (1997)
6. Next, to observe the output of the wheel speed sensors, move the transfer shift lever to the "4H" position, and the transmission control lever to the
"1" (M/T vehicles) or "D" position (A/T vehicles), and rotate the wheels.
NOTE:
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Check the connection of the sensor harness and connector before testing.
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The wave form measurements can also be taken while the vehicle is actually moving.
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The output voltage will be small when the wheel speed is low, and similarly it will be large when the wheel speed is high.
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As the wheel speed sensor harness moves in conjunction with the movement of the front and rear suspension, the wires might break while
driving on rough roads, but may have continuity while driving on normal roads. Accordingly, when measuring the wave pattern of the wheel
speed sensor output voltage, shake the sensor harness to simulate the special conditions of a rough road.
Resistance/Insulation Measurement
1. Check whether any metallic foreign material has adhered to the pole piece at the speed sensor tip, and, if so, remove it. Also, check whether the
pole piece is damaged. Replace as necessary.
NOTE: The pole piece can become magnetized because of the magnet put into the speed sensor, so that metallic foreign material easily adheres to
