Case IH 2660 (741.11) - DEC – DEC: DEC: Clutch FWD Solenoid - Generic error

The DEC module has detected an operational or electrical fault with the Forward Clutch Solenoid. This typically means the module is seeing an out-of-range value, such as an open circuit, a short to ground, a short to power, or an incorrect amperage draw when trying to activate the forward gears.

• MAXXUM T4E
• AFS Connect Magnum 180
• AFS Connect Magnum 200
• AFS Connect Magnum 220
• AFS Connect Magnum 240
• AFS Connect Magnum 250
• AFS Connect Magnum 280
• AFS Connect Magnum 310
• AFS Connect Magnum 340
• AFS Connect Magnum 380
• Puma series
• Farmall series

1. 1

   Inspect the wiring harness leading from the DEC module to the transmission valve block for chafed wires, melted insulation, or pinched lines (check circuit 4014 if applicable).

2. 2

   Disconnect the harness at the Forward Clutch Solenoid and inspect connectors for water intrusion, corrosion, or pushed-back pins.

3. 3

   Test solenoid resistance using a multimeter across the solenoid pins. An infinite reading indicates an internal open circuit, while a reading of 0 indicates a dead short.

4. 4

   Verify that the DEC is sending the correct voltage to the solenoid when forward direction is commanded, and check if the amp draw is within specification.

1. 1

   Park the tractor on a level surface, engage the parking brake, and turn off the engine.

2. 2

   Locate the transmission control valve block.

   Typically mounted on the side of the transmission housing.

3. 3

   Clean the area around the Forward Clutch Solenoid.

   This prevents dirt from entering the hydraulic system.

4. 4

   Disconnect the electrical connector from the Forward Clutch Solenoid.

5. 5

   Remove the retaining bolt or snap-ring holding the solenoid in the valve block.

6. 6

   Pull the faulty solenoid out of the bore.

   Have a catch pan ready, as a small amount of hydraulic fluid will leak out.

7. 7

   Lubricate the O-rings on the new Forward Clutch Solenoid.

   Use clean Case IH Akcela transmission fluid.

8. 8

   Insert the new solenoid into the bore and secure it with the retaining bolt/clip.

9. 9

   Reconnect the electrical harness.

10. 10

    Clear the fault codes from the DEC module.

    Use the AFS Pro display or a diagnostic tool.

11. 11

    Start the tractor, check for leaks, and perform a transmission calibration if required by the DEC module.