Use Sensor Tester (MEL1428) and seat bar sensor tester adapter (MEL1567) for the following procedure:

Connect the seat bar adapter sensor leads (MEL1567) to the sensor tester.

Disconnect the seat bar sensor connector (Item 1) [Figure 60-110-1].

Connect the Sensor Tester (Item 1) [Figure 60-110-2] inline, to the seat bar sensor connectors. See inset [Figure 60-110-2].

Turn the key to the ON position. DO NOT START THE ENGINE.

The toggle switch (Item 2) [Figure 60-110-3] can be in either the Absent or Present position.

If there is no power light (Item 1) [Figure 60-110-3] on the sensor tester, check the tester or wiring harness.

Lower the seat bar. The Sensor Test light (Item 1) [Figure 60-110-4] should illuminate.

Raise the seat bar. The Sensor Test light (Item 1) [Figure 60-110-4] should go off.

If the above test fails, there is a problem with the seat bar sensor.

Disconnect the Sensor Tester.

Replace the Seat Bar Sensor. (See Removal And Installation on Page 60-110-3.)

If the above test passes, run the seat bar sensor BICS circuit test. (See Bobcat Interlock Control System (BICS) Circuit Test on Page 60-110-5.)


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