John Deere 1881.19 – HCC, TSC, SFA, or BCU: Incorrect CAN BUS Message, Draft Sensor

Control software is receiving a message over the CAN BUS stating that the rear hitch draft sensor is either unavailable (due to an incorrect sensor configuration) or is sending a faulty signal. This code is generated when the rear hitch draft sensor circuit experiences a problem, most commonly when the sensor voltage drops below 0.20 V, indicating an open circuit, a short to ground, or a failed sensor.

• 6110M
• 6120M
• 6130M
• 6145M
• 6155M
• 6175M
• 6195M
• 6110R
• 6120R
• 6130R
• 6145R
• 6155R
• 6175R
• 6195R
• 6215R
• 6000 Series
• 6010 Series
• 6020 Series
• 6030 Series
• 6230
• 6330
• 6430 Premium
• 6M Series
• 6MC/RC Series
• 6090MC
• 6100MC
• 6150M
• 6R Series
• 6150R
• 6170R
• 6210R
• 5R Series
• 7030 Series
• 7R Series
• 8R Series

1. 1

   Verify the draft sensor configuration in the HCC/BCU using a diagnostic tool to ensure the system hasn't lost its configuration settings.

2. 2

   Inspect the wiring harness and connectors leading to the rear hitch draft sensor for physical damage, corrosion, or loose pins.

3. 3

   Back-probe the sensor connector and measure the voltage. A reading below 0.20 V confirms a circuit issue (short to ground, broken wire, or dead internal sensor potentiometer).

4. 4

   If the sensor voltage is normal (typically between 0.5V and 4.5V), check the CAN BUS communication lines between the HCC/BCU and the module logging the fault (e.g., SFA or TSC) for continuity.

1. 1

   Power Down

   Turn off the tractor and disconnect the battery to prevent electrical shorts.

2. 2

   Locate the Sensor

   Locate the rear hitch draft position sensor, which is typically mounted near the lower link pins or the draft sensing linkage at the rear hitch assembly.

3. 3

   Disconnect Wiring

   Carefully unplug the electrical harness connector from the draft sensor.

4. 4

   Remove Hardware

   Remove the retaining hardware. Depending on the model, this may involve removing a split bushing, round retainer, or lower link pin fasteners.

5. 5

   Extract and Replace

   Pull the faulty draft sensor out of its housing. Lubricate the seals on the new sensor (if applicable) and install it into the linkage.

6. 6

   Reassemble

   Secure the sensor with the retaining hardware and plug the electrical connector back in.

7. 7

   Calibrate

   Reconnect the battery and power on the tractor. Use a John Deere service tool or the tractor's interactive command center to clear the stored 001881.19 fault codes. You must perform a hitch/draft sensor calibration procedure so the control unit learns the new sensor's base voltage limits.