New Holland INST 13044 – Instrumentation Controller (INST) / Instrument Cluster: When fuel shut off relay is latched, short is detected (mechanical engine tractors only)

This code indicates that when the fuel shut-off relay is latched, a current draw of greater than 500 milliamps is sensed at the fuel relay solenoid (specifically at Pin 13, connector CN2 on the instrument cluster). This fault is often triggered during a Level 1 critical warning event that initiates an engine shutdown to protect the machine.

• T6000 Series
• T6010
• T6020
• T6030
• T6040
• T6050
• T6060
• T6070
• T70 Series
• T8040
• T9000 Series
• TJ Series
• MXM/TM Series

1. 1

   Check the instrument cluster for active Level 1 Critical Warnings (e.g., very high intake air-to-air temperature, very high engine coolant temperature, very low engine oil pressure, or very high transmission oil temperature) that may have intentionally latched the fuel shut-off relay.

2. 2

   Measure the current draw at the fuel relay solenoid circuit to verify if it exceeds 500 milliamps at Pin 13, connector CN2 on the instrument cluster.

3. 3

   Inspect the wiring harness between the instrument cluster (Connector CN2, Pin 13) and the fuel shut-off relay for any shorts to ground or exposed wires.

1. 1

   Resolve critical warnings

   If the tractor shut down due to a Level 1 critical warning (e.g., overheating or low oil pressure), diagnose and repair the underlying mechanical issue first.

2. 2

   Access the instrument cluster

   Locate connector CN2 on the back of the instrument cluster.

3. 3

   Test the circuit

   Using a multimeter, test the circuit at Pin 13 for a short to ground.

4. 4

   Test the relay

   Locate the fuel shut-off relay (often designated as KF or K3 in the fuse/relay panel depending on the model). Test the relay's internal resistance to see if it is internally shorted and pulling more than 500 milliamps.

5. 5

   Replace faulty components

   If the wiring harness is shorted, repair or replace the damaged section of the harness. If the fuel shut-off relay is drawing excessive current, replace the relay.

6. 6

   Clear codes

   After repairs, cycle the key and clear the fault codes from the Instrumentation Controller to verify the fix.