Ensure the solenoid coil wires above the piston housing of the fan drive are in good condition. There is a short circuit or an open in the upper output circuit 1 of the fan drive. Reduce fuel supply by adjusting fuel pressure to ideal.Įlectronically controlled injectors have voltage problems.Ĭheck the injector circuit for open coils and replace the damaged wiring harness.
The engine coolant temperature sensor’s input voltage is incorrect.Ĭheck the ignition and cooling system. Engine Control Unit Fault CodesĬheck the oil pressure in the engine and add sufficient oil to the tank.Ĭheck the coolant level in the radiator and clean the radiator fins if the code reappears, get help from a John Deere technical. Below is the most common one people face with John Deere products. There are more than a hundred diagnostic fault codes of the Engine Control Unit. Here’s a complete bonus guide to troubleshooting the 1595.02-speed sensor error. Re-calibrate the sensor and check the sensor wiring for defects. Inspect the circuit and check and replace the faulty wiring. Short or open circuit, faulty sensor wirings.
Check the table below for the codes and their description and fix. In general, there are two types of speed sensor errors. Fuel temperature sensors are producing a higher voltage than usual.Ĭonnect the hydraulic motor to a 300 Series SCV with a compensator valve to regulate pressure. The fuel pressure sensor output voltage is higher than the normal temperature sensor output voltage.Ĭlean mower deck debris, replace the blades and inspect the engine fuel filter for dirt. The primary throttle was shorted to a high source.Ĭheck the battery terminals and wiring, and clean dirty radiator fins. Inspect the battery and check the terminals and wiring. The cruise Set/Decel switch is held or stuck. Reduced engine performance due to clogged fuel filter, no anti-stall function.Ĭlean or replace the fuel filter and add sufficient coolant to the radiator.Ĭruise Set/Decel switch. The voltage signal is not calibrated and is out-of-range.Īdd fresh fuel in the fuel tank and add a fuel stabilizer for adjusting the oil flow. This particular model has around 70 fault codes from different control units.
JD model 6330 is one of the premium tractor models. Image Source: Flickr John Deere 6330 Fault Codes Here is a quick overview of the major fault codes for major control units and their meanings. John Deere has around 20 diagnostic trouble and fault codes. What Should I Do If I Receive Fault Codes Again?.How to Reset the Codes on a John Deere?.
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