Case IH 2229 – ZDC Controller: ZDC - CAN message DispVehicleConfig2 timeout

The control module is not receiving the 'DispVehicleConfig2' (Display Vehicle Configuration 2) message over the Controller Area Network (CAN) bus within the expected timeframe. This indicates the display unit is failing to broadcast its configuration data to the receiving controller, or the wiring between them is compromised.

• Steiger T4B
• Steiger 370
• Steiger 420
• Steiger 470
• Steiger 500
• Steiger 540
• Steiger 580
• Steiger 620
• Steiger Quadtrac
• Steiger Rowtrac
• Puma CVX
• Maxxum CVX

1. 1

   Check ZDC Power Supply (Fuses): Inspect Fuse F-101 (5 A) for ZDC Controller switched power and Fuse 102 (7.5 A) for ZDC Controller main power

2. 2

   Inspect CAN Bus Wiring: Check the cables and plugs connecting the cab display to the ZDC controller for disconnected plugs, chafed wires, or corrosion

3. 3

   Verify System Voltage: Check for low CAN bus voltage or a loose battery connector, which can trigger network timeouts

1. 1

   Power Cycle & Clear

   Turn off the tractor, ensure the battery disconnect is secure, and restart the machine to see if the timeout was a momentary software glitch.

2. 2

   Fuse Replacement

   If fuse F-101 (5A) or 102 (7.5A) is blown, inspect the ZDC power circuit for a short to ground, repair the wire, and replace the fuse.

3. 3

   Harness Repair

   If the fuses are intact, use a multimeter to test the CAN High and CAN Low lines between the display and the ZDC. Repair any open circuits or shorts found in the harness.

4. 4

   Software/Firmware Update

   If the physical wiring is intact and the display is powering on but still timing out, reload the configuration files or update the display firmware to restore the 'DispVehicleConfig2' broadcast.