ECU - Engine Control Unit Diagnostic Trouble Codes (6125 JD Control Unit Level VI)

ECU - Engine Control Unit Diagnostic Trouble Codes (6125 JD Control Unit Level VI)
Control Unit SPN FMI Pri. Indicator Light Description Effect
ECU 91 03 2   Analog Throttle Input High indicates that the analog throttle input voltage exceeds 4.75 volts. The voltage is higher than what is physically possible for the throttle lever to achieve. CAN bus problems. Armrest control unit failure.
ECU 94 01 1   Fuel Supply Pressure Extremely Low indicates that the fuel pressure is below 200 kPa (29 psi) (2 bar) at any engine speed. Plugged fuel filter or loss of prime in fuel system.
ECU 94 03 1   Fuel Supply Pressure Input Voltage High indicates that the fuel pressure input voltage exceeds 4.75 volts. This voltage corresponds to a pressure that is higher than what is physically possible for fuel pressure. An open in the ground circuit of the rail pressure sensor. Short in the harness to high voltage. Rail pressure sensor failure.
ECU 94 04 1   Fuel Supply Pressure Input Voltage Low indicates that the fuel pressure input voltage drops below 0.25 volts. This voltage corresponds to a pressure that is lower than what is physically possible for fuel pressure. Rail pressure sensor not connected or open in the signal line. Rail pressure sensor supply connection open. Harness shorted to ground. Rail pressure sensor failure.
ECU 94 16 2   Fuel Supply Pressure Moderately High indicates that the engine control unit senses a fuel pressure above the warning value set point in the engine control unit. The warning value set point is dependent on engine speed. Faulty pressure regulating valve, faulty sensor, or plugged 100 micron internal housing screen.
ECU 94 18 2   Fuel Supply Pressure Moderately Low indicates that the fuel pressure is below 300 kPa (3 bar) (43.5 psi) at any engine speed. Plugged fuel filter or loss of prime in fuel system.
ECU 97 03 2   Water In Fuel Signal Voltage High indicates that the water in fuel input voltage exceeds a 4.85 volts. This voltage corresponds to an amount of water in fuel that is not possible. Open circuit in the harness, either signal or ground. Water in fuel sensor failure.
ECU 97 04 2   Water In Fuel Signal Voltage Low indicates that the water in fuel input voltage is below 0.5 volts. This voltage corresponds to an amount of water in fuel that is not possible. Water in fuel sensor signal shorted to ground. Water in fuel sensor failed.

 

OUZXMAY,00005BE -19-13OCT02-1/6

ECU - Engine Control Unit Diagnostic Trouble Codes (6125 JD Control Unit Level VI)
Control Unit SPN FMI Pri. Indicator Light Description Effect
ECU 97 31 1   Water In Fuel Detected indicates that the water in fuel is above a predetermined quantity at a given time. Water has been detected in the separator bowl.
ECU 100 01 1   Engine Oil Pressure Extremely Low indicates that the engine control unit senses an oil pressure below the shutdown value set point in the engine control unit. The shutdown value set point is dependent on engine speed. Loss of engine oil pressure. Oil pressure switch shorted to low source. Oil pressure switch failure.
ECU 100 04 2   Engine Oil Pressure Input Voltage Low indicates that the engine control unit senses an oil pressure below the shutdown value set point in the engine control unit. The shutdown value set point is dependent on engine speed. Oil pressure circuit is open, failed oil pressure switch.
ECU 105 03 2   Manifold Air Temperature Input Voltage High indicates that the manifold air temperature input voltage exceeds 4.8 volts. This voltage corresponds to a temperature that is lower than what is physically possible for manifold air. Open circuit in the harness, either signal or ground. Manifold air temperature sensor failure.
ECU 105 04 2   Manifold Air Temperature Input Voltage Low indicates that the manifold air temperature input voltage drops below 0.1 volts. This voltage corresponds to a temperature that is higher than what is physically possible for manifold air. Manifold air temperature sensor signal shorted to ground. Manifold air temperature sensor failed.
ECU 105 16 2   Manifold Air Temperature Moderately High indicates that the engine control unit senses a manifold air temperature above the warning value set point in the engine control unit. Cooling system performance has degraded or failed.
ECU 107 00 2   Air Filter Restriction High indicates that the engine control unit senses a high air pressure from the air vacuum switch. The air filter is plugged. There is another restriction in the intake system. The air filter switch has failed or closed.

 

OUZXMAY,00005BE -19-13OCT02-2/6

ECU - Engine Control Unit Diagnostic Trouble Codes (6125 JD Control Unit Level VI)
Control Unit SPN FMI Pri. Indicator Light Description Effect
ECU 110 00 1   Engine Coolant Temperature High Most Severe indicates that the engine coolant temperature input voltage exceeds 4.95 volts. This voltage corresponds to a temperature that is lower than what is physically possible for engine coolant. Cooling system performance has degraded or failed.
ECU 110 03 2   Engine Coolant Temperature Input Voltage High indicates that the engine coolant temperature input voltage exceeds 4.95 volts. This voltage corresponds to a temperature that is lower than what is physically possible for engine coolant. Open circuit in the harness, either signal or ground. Coolant temperature sensor failure.
ECU 110 04 2   Engine Coolant Temperature Input Voltage Low indicates that the engine coolant temperature input voltage drops below 0.1 volts. This voltage corresponds to a temperature that is higher than what is physically possible for engine coolant. Coolant temperature sensor signal shorted to ground. Coolant temperature sensor failed.
ECU 110 16 2   Engine Coolant Temperature High Moderately Severe indicates that the engine control unit senses a coolant temperature above the ECT high moderately severe specification. Cooling system performance has degraded or failed.
ECU 111 01 1   Engine Coolant Level Low indicates that the loss of coolant switch contacts close causing the engine control unit to sense continuity to ground through the external shutdown / derate input terminal. Loss of engine coolant. Coolant switch shorted to low source. Coolant switch failure.
ECU 158 17 2   Engine Control Unit Power Down Error indicates that the engine control unit is unable to complete proper power down procedures after detecting a key off condition. ECU failure. Key switch circuit not going to ground.
ECU 174 03 2   Fuel Temperature Input Voltage High indicates that the fuel temperature input voltage exceeds 4.95 volts. The voltage corresponds to a temperature that is lower than what is physically possible for fuel. Open circuit in the harness, either signal or ground. Fuel temperature sensor failure.

 

OUZXMAY,00005BE -19-13OCT02-3/6

ECU - Engine Control Unit Diagnostic Trouble Codes (6125 JD Control Unit Level VI)
Control Unit SPN FMI Pri. Indicator Light Description Effect
ECU 174 04 2   Fuel Temperature Input Voltage Low indicates that the fuel temperature input voltage is below 0.25 volts. This voltage corresponds to a temperature that is lower than what is physically possible for fuel. Fuel temperature sensor signal shorted to ground. Fuel temperature sensor failed.
ECU 177 09     Transmission Oil Temperature indicates that the engine control unit detects that the data is either invalid or not received.  
ECU 523 09     Current Gear indicates that the engine control unit detects that the data is either invalid or not received.  
ECU 611 03 2   Injector Wiring Shorted To Power Source indicates that the engine control unit detects that injector wiring is shorted to a power source. A short to battery has occurred in the injector wiring.
ECU 611 04 2   Injector Wiring Shorted To Ground indicates that the engine control unit detects that injector wiring is shorted to ground. A short to ground has occurred in the injector wiring.
ECU 620 03 2   Sensor Supply Voltage High indicates that the engine control unit detects that the sensor supply voltage is above its normal operating range. Harness shorted to another power source.
ECU 620 04 2   Sensor Supply Voltage Low indicates that the engine control unit detects that the injector drive circuit has detected a short to ground on the injector lines. Harness shorted to ground. Sensor powered by this supply shorted to ground.
ECU 627 01 2   Injector Supply Voltage Problem indicates that the engine control unit detects an injector voltage supply problem. The battery supply to the ECU is unusually low. The ECU has failed.
ECU 636 02 2   Cam Position Input Noise indicates that the engine control unit detects excessive noise (extra pulses) on the cam position input. The connections to the sensor or the sensor has an intermittent failure. The sensing target is damaged.
ECU 636 08 2   Cam Position Input Missing indicates that the engine control unit does not detect the cam position input. The connections to the sensor are open circuit. The sensor has failed.
ECU 636 10 2   Cam Position Input Pattern Error indicates that the engine control unit detects an improper pattern on the cam position input. The sensing target is damaged. The sensor is improperly installed.

 

OUZXMAY,00005BE -19-13OCT02-4/6

ECU - Engine Control Unit Diagnostic Trouble Codes (6125 JD Control Unit Level VI)
Control Unit SPN FMI Pri. Indicator Light Description Effect
ECU 637 02 2   Crank Position Input Noise indicates that the engine control unit detects excessive noise (extra pulses) on the crank position input. The connections to the sensor or the sensor has an intermittent failure. The sensing target is damaged.
ECU 637 07 2   Crank Position / Cam Position Out of Sync indicates that the engine control unit detects that the cam and crank inputs are not in sync with each other. The signal polarity is possibly incorrect due to mis-wiring. The high pressure pump is incorrectly mounted.
ECU 637 08 2   Crank Position Input Missing indicates that the engine control unit does not detect the crank position input. The connections to the sensor are open circuit. The sensor has failed.
ECU 637 10 2   Crank Position Input Pattern Error indicates that the engine control unit detects an improper pattern on the crank position input. The sensing target is damaged or the sensor is improperly installed.
ECU 651 05 2   Cylinder #1 EUI Circuit Open indicates that the engine control unit detects an open in the cylinder #1 EUI circuit. Open circuit in the injector wiring, on either connection. Injector solenoid failure.
ECU 651 06 2   Cylinder #1 EUI Circuit Shorted indicates that the engine control unit detects a short in the cylinder #1 EUI circuit. Injector solenoid failure. Short across the injector wires.
ECU 652 05 2   Cylinder #2 EUI Circuit Open indicates that the engine control unit detects an open in the cylinder #2 EUI circuit. Open circuit in the injector wiring, on either connection. Injector solenoid failure.
ECU 652 06 2   Cylinder #2 EUI Circuit Shorted indicates that the engine control unit detects a short in the cylinder #2 EUI circuit. Injector solenoid failure. Short across the injector wires.
ECU 653 05 2   Cylinder #3 EUI Circuit Open indicates that the engine control unit detects an open in the cylinder #3 EUI circuit. Open circuit in the injector wiring, on either connection. Injector solenoid failure.
ECU 653 06 2   Cylinder #3 EUI Circuit Shorted indicates that the engine control unit detects a short in the cylinder #3 EUI circuit. Injector solenoid failure. Short across the injector wires.
ECU 654 05 2   Cylinder #4 EUI Circuit Open indicates that the engine control unit detects an open in the cylinder #4 EUI circuit. Open circuit in the injector wiring, on either connection. Injector solenoid failure.
ECU 654 06 2   Cylinder #4 EUI Circuit Shorted indicates that the engine control unit detects a short in the cylinder #4 EUI circuit. Injector solenoid failure. Short across the injector wires.

 

OUZXMAY,00005BE -19-13OCT02-5/6

ECU - Engine Control Unit Diagnostic Trouble Codes (6125 JD Control Unit Level VI)
Control Unit SPN FMI Pri. Indicator Light Description Effect
ECU 655 05 2   Cylinder #5 EUI Circuit Open indicates that the engine control unit detects an open in the cylinder #5 EUI circuit. Open circuit in the injector wiring, on either connection. Injector solenoid failure.
ECU 655 06 2   Cylinder #5 EUI Circuit Shorted indicates that the engine control unit detects a short in the cylinder #5 EUI circuit. Injector solenoid failure. Short across the injector wires.
ECU 656 05 2   Cylinder #6 EUI Circuit Open indicates that the engine control unit detects an open in the Cylinder #6 EUI circuit. Open circuit in the injector wiring, on either connection. Injector solenoid failure.
ECU 656 06 2   Cylinder #6 EUI Circuit Shorted indicates that the engine control unit detects a short in the cylinder #6 EUI circuit. Injector solenoid failure. Short across the injector wires.
ECU 1569 31 2   Fuel Derate indicates that the engine control unit senses a coolant temperature above 105 °C (221 °F) (DTC ECU 000110.01 or ECU 000110.16 will also be present) One of the derate conditions exists on the engine.
ECU 2000 13     Security Violation indicates that the ECU detected that an improper or missing security message was received by the engine control unit for this application.  

 

OUZXMAY,00005BE -19-13OCT02-6/6