John Deere 2192.09 – PL1 Control Software (Gear Shift Module Direct Drive): Incorrect CAN Bus Message

Reception of messages sent on the CAN bus by the control software is intermittent or non-existent, indicating a physical communication failure such as an open circuit, short circuit, or faulty CAN bus terminators.

• 6110R
• 6120R
• 6130R
• 6145R
• 6155R
• 6175R
• 6195R
• 6215R
• 6105R
• 6115R
• 6125R
• 6135R
• 6140R
• 6150R
• 6170R
• 6190R
• 6210R

1. 1

   Check for other codes from PL2, PL3, or PL4 (e.g., voltage supply issues) that could be taking the modules offline

2. 2

   Inspect transmission CAN bus wiring for visible signs of damage, wear, disconnection, or corrosion

3. 3

   Test CAN bus continuity using a multimeter to identify any open circuits

4. 4

   Inspect wiring for short circuits to ground or power, verifying with a multimeter

5. 5

   Verify CAN bus terminators are present and functioning correctly (typically reading ~60 ohms across CAN High and CAN Low pins with battery disconnected)

1. 1

   Clean and Secure Connections

   Disconnect the PL1/PL3 module connectors, clean them with electrical contact cleaner, and securely reconnect them to rule out fretting corrosion.

2. 2

   Repair Wiring

   If continuity tests fail, repair or replace the damaged section of the CAN bus wiring harness.

3. 3

   Replace Terminators

   If the CAN bus terminators are faulty or missing, install new OEM terminators to prevent signal reflections that cause communication errors.

4. 4

   Update Software

   Ensure that the PL1, PL2, PL3, and PL4 control software are flashed/updated to the latest versions provided by John Deere via Service ADVISOR.