John Deere 2071.09 – TIQ: Incorrect CAN BUS Message, Information from CCU Control Software

This is a communication error indicating that a specific control module on the machine's CAN Bus network is either intermittently or entirely failing to receive required data messages from the CCU (Chassis Control Unit).

• 6110M
• 6120M
• 6130M
• 6145M
• 6155M
• 6175M
• 6195M
• 6110R
• 6120R
• 6130R
• 6145R
• 6155R
• 6175R
• 6195R
• 6215R
• 7200R
• 7215R
• 7230R
• 7260R
• 7280R

1. 1

   Cycle the Power: Restart the tractor and cycle the key switch to rule out a temporary communication glitch during startup.

2. 2

   Inspect Wiring & Connections: Check the CAN Bus wiring harness between the TIQ and the CCU for loose, corroded, or damaged pins and connectors.

3. 3

   Check for Interference: Ensure proper grounding and shielding of the CAN Bus cables, as electrical interference can disrupt the signal.

4. 4

   Test Terminating Resistors: Test the network's terminating resistors (they should typically read 60 ohms across the network when powered down, or 120 ohms individually).

1. 1

   Clear and verify codes

   Clear the active codes using a diagnostic monitor. Operate the machine to see if TIQ 002071.09 returns as an active fault.

2. 2

   Resolve circuit issues

   If the code is active, use a multimeter to trace the CAN High and CAN Low wires between the TIQ and the CCU. Repair any open circuits, short circuits to ground, or shorts to power.

3. 3

   Replace faulty resistors

   If a CAN Bus terminating resistor is found to be defective or missing, replace it to restore network integrity.

4. 4

   Update software

   If the wiring is intact, connect John Deere Service ADVISOR to check for available software updates or patches for both the CCU and TIQ modules. Software mismatches can cause message timeouts.

5. 5

   Replace faulty module

   If the wiring, resistors, and software are all verified good, the CCU or TIQ module itself may have a failed internal CAN transceiver. The faulty module will need to be replaced and reprogrammed by a dealer.