FPT Fault Codes List: 4203 to 4512-1F
Page 20 of 31 of the full FPT fault code list (3,033 codes). Each entry is the code as the machine reports it and what the manufacturer data says it means.
FPT codes 4203 to 4512-1F
- 4203EHR Control No.1 Lever Tracks Implausibility
- 4204EHR Control No.2 Lever Tracks Implausibility
- 4205EHR Control No.3 Lever Tracks Implausibility
- 4212Camshaft Speed Sensor Values Are Not Plausible
- 4212-0Engine Speed Sensing
- 4212-1FEngine Speed Sensing
- 4216Rear Remote No.1 ‐ Valve Spool Not Calibrated
- 4217Rear Remote No.2 ‐ Valve Spool Not Calibrated
- 4218Rear Remote No.3 ‐ Valve Spool Not Calibrated
- 4219Rear Remote No.4 ‐ Valve Spool Not Calibrated
- 4220Rear Remote No.5 ‐ Valve Spool Not Calibrated
- 4301Rear Remote No.6 ‐ No EHR Control Messages
- 4302Rear Remote No.6 ‐ Implausible EHR Control Messages
- 4303Rear Remote No.6 ‐ Checksum Verification Failure
- 4304Rear Remote No.6 ‐ Neutral Set Point
- 4305Rear Remote No.6 ‐ Under Voltage
- 4306Rear Remote No.6 ‐ Over Voltage
- 4307Rear Remote No.6 ‐ Spool Deflection Too Short
- 4308Rear Remote No.6 ‐ Spool Deflection Excessive
- 4309Rear Remote No.6 ‐ Open Center Position Not Reached
- 4310Rear Remote No.6 ‐ Manual Operation
- 4311Rear Remote No.6 ‐ Output Stage Faulty
- 4312Rear Remote No.6 ‐ Position Transducer Faulty
- 4313Rear Remote No.6 ‐ Spool Cannot Be Brought Back To Neutral
- 4314Rear Remote No.6 ‐ Spool Not in Neutral When Switched On
- 4315Rear Remote No.7 ‐ No EHR Control Messages
- 4316Rear Remote No.7 ‐ Implausible EHR Control Messages
- 4317Rear Remote No.7 ‐ Checksum Verification Failure
- 4318Rear Remote No.7 ‐ Neutral Set Point
- 4319Rear Remote No.7 ‐ Under Voltage
- 4320Rear Remote No.7 ‐ Under Voltage
- 4321Rear Remote No.7 ‐ Spool Deflection Too Short
- 4322Rear Remote No.7 ‐ Spool Deflection Excessive
- 4323Rear Remote No.7 ‐ Open Center Position Not Reached
- 4324Rear Remote No.7 ‐ Manual Operation
- 4325Rear Remote No.7 ‐ Output Stage Faulty
- 4326Rear Remote No.7 ‐ Position Transducer Faulty
- 4327Rear Remote No.7 ‐ Spool Cannot Be Brought Back To Neutral
- 4328Rear Remote No.7 ‐ Spool Not In Neutral When Switched On
- 4329Rear Remote No.8 ‐ No EHR Control Messages
- 4330Rear Remote No.8 ‐ Implausible EHR Control Messages
- 4331Rear Remote No.8 ‐ Checksum Verification Failure
- 4332Rear Remote No.8 ‐ Neutral Set Point
- 4333Rear Remote No.8 ‐ Under Voltage
- 4334Rear Remote No.8 ‐ Over Voltage
- 4335Rear Remote No.8 ‐ Spool Deflection Too Short
- 4336Rear Remote No.8 ‐ Spool Deflection Excessive
- 4337Rear Remote No.8 ‐ Open Center Position Not Reached
- 4338Rear Remote No.8 ‐ Manual Operation
- 4339Rear Remote No.8 ‐ Output Stage Faulty
- 4340Rear Remote No.8 ‐ Position Transducer Faulty
- 4341Rear Remote No.8 ‐ Spool Cannot Be Brought Back To Neutral
- 4342Rear Remote No.8 ‐ Spool Not In Neutral When Switched On
- 4343Rear Remote No.5 ‐ Lever Not Calibrated
- 4344Rear Remote No.6 ‐ Lever Not Calibrated
- 4345Rear Remote No.7 ‐ Lever Not Calibrated
- 4346Rear Remote No.8 ‐ Lever Not Calibrated
- 4347EHR 6 Offline Err
- 4348EHR 7 Offline Err
- 4349EHR 8 Offline Err
- 4350Rear Remote No.6 ‐ Valve Spool Not Calibrated
- 4351Rear Remote No.7 ‐ Valve Spool Not Calibrated
- 4352Rear Remote No.8 ‐ Valve Spool Not Calibrated
- 4353EHR FB 1High Err
- 4354EHR FB 1 Low Err
- 4355EHR FB 3 High Err
- 4356EHR FB 3 Low Err
- 4357EHR Implement Lower Error
- 4358EHR Implement Raise Error
- 436ADEF Supply Module Temperature Not Available
- 436A-0SCR Reagent Pump
- 436A-1FSCR Reagent Pump
- 439CExhaust Flap Increased Friction or High Mechanical Load or Flap Sticking
- 43CEDownstream NOx Sensor Signal is Stuck At a Constant Value
- 43CE-0NOx Sensing
- 43CE-1FNOx Sensing
- 4412Crankshaft Speed Sensor Pattern is Not Plausible
- 4412-0Engine Speed Sensing
- 4412-1FEngine Speed Sensing
- 4415Water in Fuel Detected or Water in Fuel Circuit Failure
- 4415-0Water in Fuel Determination
- 4415-1FWater in Fuel Determination
- 4465Fuel Pump Pressure Has Exceeded Desired Pressure Limits
- 4465-0Fuel Pressure (Rail) Control
- 4465-1FFuel Pressure (Rail) Control
- 4500Front Remote No. 1 - No Control Message Received
- 4501Electro Hydraulic Remote Valve (EHR) Front 1 - Control Message Not Plausible
- 4502Electro Hydraulic Remote Valve (EHR) Front 1 - EEPROM Fault
- 4503Electro Hydraulic Remote Valve (EHR) Front 1 - Switched To Failsafe
- 4504Electro Hydraulic Remote Valve (EHR) Front 1 - Under-Voltage
- 4505Electro Hydraulic Remote Valve (EHR) Front 1 - Over-Voltage
- 4506Electro Hydraulic Remote Valve (EHR) Front 1 - Spool Movement Too Low
- 4507Electro Hydraulic Remote Valve (EHR) Front 1 - Spool Movement Too High
- 4508Electro Hydraulic Remote Valve (EHR) Front 1 - Float Position Not Reached
- 4509Electro Hydraulic Remote Valve (EHR) Front 1 - Manually Operated
- 4510Electro Hydraulic Remote Valve (EHR) Front 1 - Driver Faulty
- 4511Electro Hydraulic Remote Valve (EHR) Front 1 - Potentiometer Faulty
- 4512Electro Hydraulic Remote Valve (EHR) Front 1 - Unable To Reach Neutral
- 4512-0Engine Speed Sensing
- 4512-1FEngine Speed Sensing
Fault code lists by brand
- CAT8,286 codes
- Volvo6,508 codes
- New Holland Tractor3,475 codes
- Case IH2,992 codes
- Bobcat2,653 codes
- Challenger Tractor2,434 codes
- New Holland Combine2,274 codes
- John Deere Tractors1,884 codes
- Case Wheel Loader1,859 codes
- John Deere Engines1,853 codes
- Cummins1,847 codes
- Challenger Rubber Track Tractor1,747 codes
- Volvo Wheel Loader1,726 codes
- Deutz1,684 codes
Safety-critical: confirm before use
Safety first: park on level ground, stop the engine, and secure the machine before any inspection. Thresholds, component locations, wire numbers, fuse locations, and reset procedures can vary by model, configuration, and serial number. Confirm them in the service documentation for your exact machine.