CYLINDER GP-STICK 2590853 - Caterpillar

System Response:When this diagnostic code occurs, the kickouts will not function properly. The snubbing for the tilt cylinder will not function. The implements will function slowly. The calibration procedures for the implement valves may not function properly. The full rack angle control will not function properly.Test Step 1. INSPECT THE SENSOR
Perform a visual inspection of the sensor, the wiring for the sensor and the hardware that is associated with the sensor. Expected Result:There is no apparent damage to the sensor, the wiring for the sensor or the hardware that is associated with the sensor.Results:
OK - There is no apparent damage to the sensor, the wiring for the sensor or the hardware that is associated with the sensor. Proceed to Test Step 2.
NOT OK - There is apparent damage to the sensor, the wiring for the sensor or the hardware that is associated with the sensor. Repair: Replace the damaged part.Proceed to Test Step 8.Test Step 2. CHECK FOR POWER AT THE SENSOR
Do not disconnect the harness connector from the sensor.
At the back of the harness connector for the sensor, insert a 7X-1710 Multimeter Probe along the voltage supply wire (contact A).
Turn the key start switch and the disconnect switch to the ON position.
Measure the voltage from contact A to frame ground. Expected Result:The voltage is +24 volts.Results:
OK - The voltage is 24 volts. Proceed to Test Step 3.
NOT OK - The voltage is not 24 volts. The circuit is open. Repair: Repair the machine harness or replace the machine harness.STOPTest Step 3. CHECK FOR PROPER GROUND AT THE SENSOR
The machine harness remains connected to the sensor.
Turn the key start switch and the disconnect switch to the OFF position.
Remove the 7X-1710 Multimeter Probe from the voltage supply wire (contact A).
At the back of the harness connector for the sensor, insert a 7X-1710 Multimeter Probe along the ground wire (contact B).
Measure the resistance from contact B to frame ground. Expected Result:The resistance is less than 5 ohms.Results:
OK - The resistance is less than 5 ohms. The ground circuit is correct. Proceed to Test Step 4.
NOT OK - The resistance is greater than 5 ohms. The ground circuit in the machine harness has failed.Repair: Replace the machine harness or repair the machine harness.STOPTest Step 4. CHECK THE SIGNAL OF THE SENSOR
Turn the key start switch and the disconnect switch to the OFF position.
The 7X-1710 Multimeter Probe remains along the ground wire (contact B).
At the back of the harness connector for the sensor, insert the other 7X-1710 Multimeter Probe along the signal wire (contact C).
Turn the disconnect switch and the key start switch to the ON position.
Monitor the signal of the sensor with the 146-4080 Digital Multimeter.
Without disconnecting the sensor or the hardware that is associated with the sensor from the machine, take the sensor through the full operating range of the sensor. Note: On some machines, it may be necessary to start the engine in order to take the sensor through the full operating range