Fendt 00.1.4E – A007: Instrument Cluster Memory Checksum Fault

The internal memory (EEPROM) inside the instrument cluster has failed a checksum validation specifically for the warning icon images. This corruption causes display errors or malfunctions on the instrument cluster screen.

• 309 Vario COM III
• 310 Vario COM III
• 311 Vario COM III
• 312 Vario COM III
• 922 Vario COM III
• 924 Vario COM III
• 927 Vario COM III
• 930 Vario COM III
• 933 Vario COM III
• 936 Vario COM III
• 200 Vario Series
• 207 Vario
• 208 Vario
• 209 Vario
• 210 Vario
• 211 Vario
• 300 Vario (COM III)
• 400 Vario (COM III)
• 700 Vario (COM III / SCR)
• 800 Vario (COM III / SCR)
• 900 Vario (COM III / SCR)

1. 1

   Attempt to clear the fault code manually from the A007 memory by calling up the fault code on the display and pressing buttons A, B, and C (both arrow keys and the enter key) simultaneously, then cycle tractor power.

2. 2

   Verify the power supply to the A007 instrument cluster to rule out voltage drops or spikes that can corrupt EEPROM memory.

3. 3

   Check the power supply for the CAN bus located on circuit board A013, specifically inspecting fuses F040 and F041.

1. 1

   EOL Programming

   Connect the tractor to the FENDIAS diagnostic software.

2. 2

   Reflash the Cluster

   Attempt to reflash or reprogram the A007 Instrument Cluster using FENDIAS to rewrite the corrupted warning icon memory.

3. 3

   Hardware Replacement or Repair

   If EOL programming fails, the EEPROM chip is physically damaged. Remove the A007 instrument cluster and either send it to an agricultural electronics specialist for board-level repair or replace the entire unit.

4. 4

   Post-Repair Calibration

   If a new or repaired cluster is installed, perform EOL programming on the new unit to marry it to the tractor's A050 basic control unit.

5. 5

   Clear Ghost Codes

   Use FENDIAS to clear the residual 00.1.4E fault codes stored in the A050 (Basic Control Unit) and A051/A099 (Engine Control Unit).