John Deere 001231.12 – PTP: Drive Train CAN BUS Issue, Range Module Direct Drive (PL3)

The system has detected a communication breakdown on the Drive Train CAN bus related to the Range Module Direct Drive (PL3). The Powershift Transmission Control Unit (PTP) has lost communication with, or is receiving implausible data from, the module responsible for range shifting in the DirectDrive transmission.

• 6110R
• 6120R
• 6130R
• 6145R
• 6155R
• 6175R
• 6195R
• 6215R

1. 1

   Perform a cold boot (power cycle the machine) to see if it resolves temporary communication glitches

2. 2

   Visually inspect wiring harnesses and connectors for the transmission and PL3 module for chafing, corrosion, or loose connections (especially broken ground wire eyelets)

3. 3

   Check for other '009' loss-of-communication codes that might indicate a broader CAN bus issue

4. 4

   Measure CAN bus resistance with the key off (should be approximately 60 ohms between CAN High (yellow) and CAN Low (green) wires)

5. 5

   Measure CAN bus voltage with the key on (should be approximately 2.5 volts on both CAN High (yellow) and CAN Low (green) wires)

6. 6

   Review the CAN bus state using John Deere Service Advisor for 'Passive', 'Warn', or 'Off' errors

7. 7

   If CAN voltages are incorrect, unplug modules on the network one by one to isolate the faulty controller disrupting the network

1. 1

   Address any visible wiring issues

   If visual inspection reveals damaged wires, broken ground eyelets, or corroded connectors, repair or replace them and ensure all connections are clean and secure.

2. 2

   Isolate the faulty component

   Use CAN bus diagnostics and module isolation techniques to confirm if the Range Module Direct Drive (PL3) or another controller is the root cause.

3. 3

   Replace the suspected module

   If the PL3 module is confirmed faulty, disconnect its electrical connector, remove mounting hardware, and install the replacement module.

4. 4

   Reprogramming

   Program the newly installed control module using John Deere Service Advisor software to ensure it communicates correctly with other modules on the tractor.