Massey Ferguson 04.03.97 – TRANS1: Issue With Range 3 Engaged Switch And Range Solenoid 3
Issue description
The transmission controller has detected a malfunction, electrical mismatch, or lack of response involving the solenoid responsible for shifting the transmission into Range 3, or the sensor/switch that confirms Range 3 has been physically engaged.
Applies to these machines
35 machines- 7724S
- 5712SL
- 7722
- 7722S
- 5713SL
- 7720S
- 7716
- 7718
- T4
- 7715
- 5710SL
- 7726
- 7726S
- 5711SL
- 7718S
- 7719
- 7714
- 7716S
- 7720
- Tier 4 (2015-2021)
- 7715S
- 7724
- 5608
- 5609
- 5610
- 5611
- 5612
- 5613
- 5709
- 6712S
- 6713S
- 6714S
- 6715S
- 6716S
- 6718S
Check the cause
Inspect the wiring harness leading to the transmission side cover for rubbed wires, corrosion inside the connectors, or loose pins.
Verify that the 12V control voltage is reaching the Range 3 switch and solenoid.
Test the Range 3 solenoid coil for resistance (should read around 10 Ohms; an open or short circuit indicates a dead solenoid).
Swap the Range 3 solenoid with the Range 1 or Range 2 solenoid to isolate the fault. If the fault code changes to 04.03.95 (Range 1) or 04.03.96 (Range 2), the solenoid is faulty. If 04.03.97 returns, the issue is likely in the wiring harness or the TRANS1 module.
Repair steps
Preparation
Park the tractor on a level surface, engage the parking brake, and turn off the battery isolator switch.
Locate Components
Locate the bank of range solenoids on the side of the transmission housing.
Clean the Area
Thoroughly clean the area around the solenoids with brake cleaner and compressed air to prevent any dirt from entering the transmission valve body during removal.
Removal
Disconnect the electrical plug from the Range 3 solenoid and the Range 3 engaged switch. Remove the retaining fasteners holding the solenoid/switch in place and pull the component free.
Installation
Lubricate the O-rings on the new solenoid/switch with clean transmission fluid. Insert the new component and torque the retaining fasteners to OEM spec.
Electrical Connection
Apply a small amount of dielectric grease to the electrical contacts to prevent moisture ingress, then reconnect the wiring harness.
Calibration/Clearing
Reconnect battery power, use a diagnostic tool to clear the 04.03.97 fault code, and test drive the tractor through all ranges to ensure smooth shifting.
Parts you might need
(2)Transmission Control Solenoid (Dyna Range Solenoid)
4363356M310 Ohm solenoid. Fits Dyna-4 and Dyna-6 transmissions across the 5400, 5600, 5700, 6400, 6600, 6700, 7600, and 7700 series. Previous superseded part numbers include 3794719M4, 3794719M3, 3794719M2, and 3794719M1.
Transmission Switch Plunger (Range Engaged Switch)
3796579M14 switches are required per tractor (one for each range). Fits Dyna-4 and Dyna-6 transmissions.
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