SHAFT-PLNTY-YM 3735390 - Caterpillar

Illustration 1 g00544121
Schematic for the alarm (action)This diagnostic code is recorded when the main display module reads the current of the action alarm. The current for the action alarm is below normal. The action alarm does not SOUND as a result of this diagnostic code. The schematic that is shown above represents a typical installation of the component. Verify the connector contact and wire numbers by using the Electrical System Schematic for the machine that is being serviced. Test Step 1. CHECK THE ALARM.
Disconnect the machine harness from the alarm.
At the machine harness connector for the alarm, place a jumper across the two contacts.Expected Result:The CID 0271 FMI 05 is still present.Results:
YES - The CID 0271 FMI 05 remains present. The action alarm is not causing the diagnostic code. Verify that the action alarm is correct. The correct resistance for a good alarm is 200 100 ohms. Proceed to test step 2.
NO - The CID 0271 FMI 05