Massey Ferguson 04.0.17 – TRANS (Transmission Control Module): Transmission Module Low Supply Voltage On 10 Volt Sensor Output Pin (TRANs)

The transmission control module provides a 10-volt reference signal to power various transmission sensors. This code triggers when the module detects that the voltage on this specific 10V output pin has dropped below the acceptable operating threshold. This voltage drop is typically caused by a short to ground in the sensor wiring harness, a defective sensor internally shorting and pulling the voltage down, or an internal failure within the transmission module itself.

• 4707
• 4708
• 4709
• 4710
• T4 (2015-2021)
• 5608
• 5609
• 5610
• 5611
• 5612
• 5613
• 5710SL
• 5711SL
• 5712SL
• 5713SL
• 7614
• 7615
• 7616
• 7618
• 7619
• 7620
• 7622
• 7624
• 7626
• 7714
• 7715
• 7715S
• 7716
• 7718
• 7719
• 7720
• 7722
• 7724
• 7726

1. 1

   Verify the tractor's main battery and charging system. Ensure the battery reads ~12.6V off and 13.5V–14.5V while running, as low system voltage can cause phantom codes.

2. 2

   Inspect the transmission wiring harness for rub-throughs, pinched wires, or melted insulation, especially near hinges, steering joints, frames, and hot hydraulic lines.

3. 3

   Check the main connectors at the transmission module and all 10V sensors for pushed-back pins, loose locking tabs, corrosion, or oil/water ingress.

4. 4

   Perform a Sensor Isolation Test (Drop Test) by disconnecting the sensors powered by the 10V reference circuit one at a time while monitoring the voltage at the module's 10V output pin. If voltage jumps back to ~10V, the unplugged sensor is internally shorted.

5. 5

   Verify the Transmission Module by checking if it still outputs low voltage when all sensors are unplugged and the wiring harness tests good for continuity (no shorts to ground).

1. 1

   Disconnect Power

   Disconnect the negative battery terminal before performing any electrical repairs to prevent further module damage.

2. 2

   Repair Wiring (If Applicable)

   If a short to ground was found in the harness, cut out the damaged section and splice in new wire using weather-sealed (heat-shrink) butt connectors. Secure the harness away from the abrasion point.

3. 3

   Replace Faulty Component

   If a sensor was pulling the voltage down, replace the specific sensor and clean the connector plug with electrical contact cleaner. If the module failed the isolation test, remove and replace the Transmission Control Module.

4. 4

   Reassemble and Power Up

   Reconnect all sensors and the negative battery terminal.

5. 5

   Clear Codes

   Use the tractor's dashboard interface, Wintest, or EDT (Electronic Diagnostic Tool) software to clear the stored 04.0.17 fault code.

6. 6

   Test Operation

   Start the tractor and test drive it through all gears and ranges to ensure the transmission shifts correctly and the code does not return.