New Holland 1206 – UCM: Parameter Validation: Configuration Response Timed Out

The system has detected a timeout during the configuration response phase of the CAN connection. A control module did not receive an expected response from another module during the critical configuration phase after the machine was powered on. This indicates a failure in the communication process, suggesting that a key controller on the network is either offline, not communicating correctly, or there is a fault in the network wiring itself preventing messages from being exchanged.

• L213
• L215
• L216
• L218
• L220
• L221
• L223
• L225
• L230
• C227
• C232
• C238
• L160
• L170
• L180

1. 1

   Check battery voltage (ideally 12.6V) and ensure all power and ground connections to the UCM and other controllers are clean, tight, and free of corrosion.

2. 2

   Visually inspect wiring harnesses connected to the UCM and other modules for chafing, pinching, or corrosion, particularly in areas exposed to movement and debris.

3. 3

   Perform a CAN bus resistance check with power OFF and battery disconnected. Measure resistance between CAN_H and CAN_L (expected: ~60 Ohms).

4. 4

   Perform a CAN bus voltage check with Key ON, Engine OFF. Measure DC voltage of each CAN line to ground (expected: CAN_H 2.5V-3.0V, CAN_L 2.0V-2.5V).

1. 1

   Address preliminary findings

   If diagnostic checks reveal issues with battery voltage, grounds, or visible harness damage, rectify these first. Clean terminals, repair damaged wires, and re-test.

2. 2

   Isolate CAN bus faults

   If CAN bus resistance is ~120 Ohms (missing resistor/open circuit), <60 Ohms (short), or OL (open circuit), or if voltages are out of range, trace the CAN wiring using the service manual (such as part number 84522361 for the 200 Series) to locate connectors, splices, and terminating resistors.

3. 3

   Inspect for known failure points

   Check communication-related components within the wiring harness, such as corroded diodes, which are a common cause of communication faults.

4. 4

   Isolate the UCM

   If CAN bus wiring and termination test correctly, the fault may be internal to the UCM or the module it is trying to communicate with. Use the New Holland Electronic Service Tool (EST) to identify which module is not responding.

5. 5

   Replace and program UCM

   If the UCM is determined to be faulty, replace it. The new UCM must be programmed ('flashed') by an authorized dealer with the correct configuration for the specific machine model and options.