New Holland NH 14200 – ADIC (Advanced Digital Instrument Cluster): EEPROM error

The internal memory of the instrument cluster has become corrupt. This can also indicate that the battery isolator switch closed to the ADIC battery at Key ON for more than 30 seconds.

• T5.95
• T5.105
• T5.115
• T6010
• T6020
• T6030
• T6040
• T6050
• T6060
• T6070
• T6.150
• Workmaster 45
• Workmaster 50
• Workmaster 55
• TN75FA
• TN85FA
• TN95FA

1. 1

   Test the battery's resting voltage and its performance under load to check for voltage drops during engine start.

2. 2

   Verify that the battery isolator switch is functioning correctly and is not remaining closed to the ADIC battery at Key ON for more than 30 seconds.

3. 3

   Verify the ADIC's internal 5-volt power supply reference.

1. 1

   Resolve voltage issues

   Replace the battery or repair the battery isolator switch if they failed the diagnostic checks. If you do not fix the voltage drop, the new or reprogrammed cluster will corrupt again.

2. 2

   Clear stored codes

   Enter the instrument cluster's diagnostic mode and select the 'HC' (Clear Stored Error Codes) function. The display will change from 'HC' to 'EE' to 'HH', indicating the stored errors have been cleared. Cycle the key.

3. 3

   Reprogram the cluster

   If the code returns immediately, the EEPROM software is corrupted. Connect the New Holland Electronic Service Tool (EST) laptop and attempt to re-flash/reprogram the instrument cluster with the correct firmware and configuration for the specific tractor model.

4. 4

   Replace the cluster

   If the EST software cannot rewrite the memory, or if the reprogramming fails to clear the 14200 code, the EEPROM chip has suffered physical hardware failure. The entire instrument cluster must be replaced.