STATUS
CODE
DISPLAY MESSAGE RECOVERY METHOD CIRCUIT
21834
(cont)
21834 Return to Neutral Joystick
Node 22
DESCRIPTION BEHAVIOR
Joystick detected fault in Hoist Axis Halt Pump, hydraulic functions disabled, Load hold
valve closes.
Probable Causes and Test Procedures
5. Check physical connector and pins for damage or loose connections.
a. Are there any bent / broken pins, poor seating, or wiring damage?
YES- Replace any bent / broken pins, with new properly crimped connections.
NO- Proceed to step 6 (only if not intermittent), problem undeterminable if intermittent.
6. Verify power to unit:
a. Check for 24V power between Pin 1 and 4 on joystick connector.
YES- Proceed to step 7.
NO- Proceed to step 6b.
b. Check continuity from lift controller Pin 2 (Wire 284) to Joystick Pin 1.
c. Check continuity from B− Stud (Wire 113) to Joystick Pin 4.
YES- Proceed to step 6d.
NO- Repair faulty wire.
d. Verify lift controller operational, and 24V is present on controller Pin 2.
YES- Unit has power, but not operating, replace handle.
NO- Lift ACE controller faulty, replace lift controller.
7. Verify CAN Communication:
a. Check continuity from Pin 2 (Wire 900) to Diagnostic connector Pin B.
b. Check continuity from Pin 2 (Wire 900) to RH Traction Pin 27.
c. Check continuity from Pin 3 (Wire 901) to Diagnostic connector Pin A.
d. Check continuity from Pin 3 (Wire 901) to RH Traction Pin 28.
YES- No wiring fault found, handle must be at fault, replace handle.
NO- Determine location and repair fault in associated wire.
Troubleshooting 2200 YRM 1415
90
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