OPTION AR-LINKAGE 3843515 - Caterpillar

all of the connectors that are in the circuits. Inspect the connections for the following:
Connections are clean.
Connections are secure.
Connections are in good condition.For troubleshooting the power supply of the Implement ECM, refer to the CID 0041 diagnostic code procedures in the Troubleshooting Section of the manual for the Implement ECM.Repair the faulty power supply circuit before proceeding with this procedure.STOPTest Step 2. CHECK FOR AN OPEN IN THE SENSOR CIRCUIT AT BOTH OF THE ELECTRONIC CONTROL MODULES
Turn the disconnect switch to the OFF position.
Turn the key start switch to the OFF position.
Disconnect the machine harness connector J1 from the left joystick.
At harness connector J1 for the joystick, connect a jumper wire between ground 2 contact J1-4 (wire X800-OR) and the signal contact J1-7 (wire U740-BU).
Disconnect machine harness connectors J1 and J2 from the Transmission/Chassis ECM.
At the harness connector for the Transmission/Chassis ECM, measure the resistance from return contact J1-45 (wire X800-OR) to signal contact J2-48 (wire U740-BU).
While you observe the resistance measurement, wiggle the ECM connector and the sensor connector. Gently pull on the wires and move the wires for both connectors.
At harness connector J1 for the joystick, move the jumper wire to the ground 3 contact J1-8 (wire P967-PU) and the signal contact J1-7 (wire U740-BU).
Disconnect machine harness connectors J1 and J2