John Deere 2174.09 – SCO: CAN Bus Message Cannot Be Received, Information from E-SCV XIV

This indicates a data transfer problem between the SCO control software and the Electronic Selective Control Valve 14 (E-SCV XIV). The SCO module is expecting a CAN bus message from this specific valve controller but is not receiving it, resulting in limited or no function of the E-SCV XIV.

• 6110R
• 6120R
• 6130R
• 6145R
• 6155R
• 6175R
• 6195R
• 6215R
• 8R Series
• 8RT Series
• 8RX Series
• 8245R
• 8400R
• 6R Series

1. 1

   Inspect CAN Bus wiring between the SCO module and the E-SCV XIV for signs of damage, chafing, loose connections, or corrosion.

2. 2

   Verify the E-SCV XIV control unit is receiving proper operating voltage and has a solid ground.

3. 3

   Test CAN Bus network resistance using a multimeter (should typically read 60 ohms across CAN High and CAN Low with the battery disconnected).

4. 4

   Use a diagnostic tool like John Deere Service ADVISOR or Jaltest to ping the E-SCV XIV and verify if it is communicating on the network.

1. 1

   Safety First

   Park the tractor on a level surface, engage the parking brake, lower all implements, and turn off the engine. Disconnect the battery if you will be repairing wiring.

2. 2

   Access the Valve Block

   Locate the rear hydraulic valve stack and identify E-SCV XIV.

3. 3

   Clean and Secure Connections

   Disconnect the wiring harness connector at the E-SCV XIV. Inspect the pins for pushed-back terminals, moisture, or green corrosion. Clean the pins with electrical contact cleaner, apply dielectric grease, and reconnect securely.

4. 4

   Repair Wiring

   If the wiring harness is damaged or shorted, repair the affected section of the CAN bus lines using proper twisted-pair splicing techniques.

5. 5

   Recalibrate / Update Software

   If the wiring is intact and the module has power, connect a diagnostic tool. Attempt to flash/update the E-SCV XIV control unit software or perform a recalibration.

6. 6

   Replace the E-SCV Controller

   If the E-SCV XIV control unit remains unresponsive to CAN messages and all wiring/power checks pass, the controller itself has failed internally and must be replaced.

7. 7

   Clear Codes and Test

   After replacing the unit or repairing the wiring, clear the SCO 002174.09 fault code and cycle the SCV lever to verify proper hydraulic function.