SHAFT GP-DRIVE 7V2146 - Caterpillar

Illustration 1 g03364020
Schematic for the seat mode switch
This diagnostic code is associated with the rotary switch (seat mode). The rotary switch is connected to three inputs of the ECM. Two contacts are open and the other contact is grounded during proper operation.This FMI 03 means that the ECM has determined that the normally open contacts and the normally closed contact are open.Note: The following test procedure may create other diagnostic codes. Ignore these created diagnostic codes and clear these diagnostic codes when the original diagnostic code has been corrected. Ensure that the diagnostic code of CID 3432 FMI 03 is active before performing this procedure.Note: Use the 146-4080 Digital Multimeter for the measurements in this procedure.System Response:The seat mode will default to OFF until the fault is cleared.
Table 1
Mode Switch Status for Swivel Seat
Switch Position Manual (J2-34) Off (J2-33) Auto (J2-32)
Man Closed Open Open
Off Open Closed Open
Auto Open Open Closed Test Step 1. CHECK THE GROUND CIRCUIT OF THE SWITCH IN THE HARNESS
Turn the key start switch and the disconnect switch to the OFF position.
Disconnect the machine harness connector from the switch.
Measure the resistance between frame ground and contact 1 (wire 202-BK(Black)) of the switch. Expected Result:The resistance is less than 5 ohms.Results:
YES - The resistance is less than 5 ohms. The circuit is correct. Proceed to Test Step 2.
NO - The resistance is greater than 5 ohms. The machine harness has failed.Repair: Repair the machine harness or replace the machine harness.STOPTest Step 2. CHECK THE SWITCH CIRCUITS FOR A SHORT TO THE +BATTERY CIRCUIT
The machine harness connector remains disconnected from the switch.
The disconnect switch and the key start switch remain in the OFF position.
Disconnect the machine harness connectors from the ECM.
At the machine