New Holland ENG 3260 – ENGINE: Starter Relay: Low Side Power - Open Load

The ECU detects that the low-side driver circuit to the starter relay is open (an "open load" or broken circuit).

• L213
• L215
• L218
• L220
• L221
• L223
• L225
• L228
• L230
• L250
• C232
• C238
• B90B
• B95
• B100B
• B110
• B115B
• T5.95
• T5.105
• T5.115
• T8010
• T8020
• T9020
• T9060
• T9.390
• T9.450
• D75
• D85
• D95
• D150B

1. 1

   Locate the starter relay in the main fuse/relay box and inspect the socket pins for corrosion, pushed-out pins, or loose connections

2. 2

   Use a multimeter to check the wiring harness between the Engine ECU (low-side driver pin) and the starter relay socket for broken wires or chafing (Open Load Check)

3. 3

   Test the starter relay coil by measuring the resistance across the relay coil pins. Infinite resistance indicates the relay has failed internally

4. 4

   Verify that battery voltage (high-side power) is reaching the relay when the ignition is turned to the start position, and ensure the ECU is properly grounding the low side

1. 1

   Disconnect Power

   Disconnect the negative battery cable to prevent accidental shorts while working on the electrical system.

2. 2

   Access the Relay Panel

   Open the electrical panel/fuse box to access the starter relay.

3. 3

   Replace or Repair

   If the diagnostic tests proved the relay coil is open, replace the starter relay with a new OEM unit. If the relay is good but the wiring is broken, repair the break in the harness between the ECU and the relay socket using appropriate weather-sealed connectors.

4. 4

   Reassemble and Clear Codes

   Reinstall the relay, reconnect the battery, and turn the ignition on. Use a diagnostic service tool to clear the ENG 3260 fault code, or cycle the key to see if the ECU self-clears the inactive code.

5. 5

   Test Operation

   Attempt to crank the engine to verify the starter engages and the code does not return.