Massey Ferguson T163 – Autotronic 5: Issue With Range 4 Engaged Switch And Range Solenoid 4 (TRANS1)

Indicates an inconsistency or failure involving component X491 (Range 4 switch and Range 4 solenoid valve), specifically a failure in the CAN bus messaging between the tractor's instrument panel and the transmission controller regarding the engagement status of Range 4.

• 7616
• 5612
• 7622
• Interim Tier 4 (2012-2015)
• 7614
• 5611
• 7615
• 5610
• 5613
• 7620
• 5609
• 7618
• 5608
• 7619
• 7626
• 7624
• 5400 Series
• 5600 Series
• 5700 SL Series
• 5710SL
• 5711SL
• 5712SL
• 5713SL
• 6400 Series
• 7600 Series
• 7700 Series

1. 1

   Inspect the CAN network wiring harness for chafing, corrosion, or loose pins at both the instrument cluster and the Autotronic 5 connectors

2. 2

   Test the Range 4 solenoid valve (G26, L55, or X491) resistance across the pins (should measure approximately 7.2 Ω ± 7%)

3. 3

   Check the Range 4 position switch for a short circuit to 0V or an open circuit

4. 4

   Use the Massey Ferguson solenoid valve service test tool (OEM Ref: 3378805M1) to manually check the shifting of each range, return to neutral, and switch operation

1. 1

   Power Down

   Turn off the tractor and disconnect the battery to prevent electrical shorts while working on the transmission control valves.

2. 2

   Locate Component X491

   Locate the Range 4 solenoid valve and switch assembly on the transmission's side cover/valve block.

3. 3

   Inspect and Clean Connections

   Disconnect the wiring harness to the Range 4 solenoid and switch. Clean the contacts with electrical contact cleaner and verify that the wiring is intact all the way back to the Autotronic 5 module.

4. 4

   Replace Faulty Components

   If the solenoid fails the resistance test or the switch fails the continuity test, remove and replace the faulty component.

5. 5

   Torque Specifications

   When installing a new Range 4 switch, OEM manuals state to tighten the switch to a maximum torque of 50 Nm.

6. 6

   Reassemble and Clear Codes

   Reconnect the wiring harness and the battery. Use a diagnostic tool to clear the T163 fault code from the Autotronic 5 module.

7. 7

   Test Drive

   Operate the tractor and shift through the ranges to ensure Range 4 engages properly and the CAN communication error does not return.