Case IH 2236 – ZDC: ZDC - Vehicle Bus 1 CAN Bus Offline

Communication failure on the tractor's Controller Area Network (CAN) indicating the ZDC module has dropped offline and is no longer communicating on Vehicle Bus 1.

• Steiger T4B
• Steiger
• Magnum

1. 1

   Verify the power and ground circuits to the module before condemning it

2. 2

   Check the switched power fuses for the ZDC controller (e.g., 5A switched key fuse F-101 Controlador ZDC KL15)

3. 3

   Inspect the CAN Data Bus (Vehicle Bus 1) wiring harness for opens, shorts, or corrosion at the ZDC connector

1. 1

   Check Fuses

   Verify the switched power fuses for the ZDC controller. Schematics indicate the ZDC relies on a 5A switched key fuse (e.g., F-101 Controlador ZDC KL15).

2. 2

   Check Wiring/Harness

   Inspect the CAN Data Bus (Vehicle Bus 1) wiring harness for opens, shorts, or corrosion at the ZDC connector.