Case IH 2910-17 - DEC – Transmission Control Unit (TCU) or Vehicle Control Unit (VCU): Transmission PTO Clutch Valve Actuator (Rear PTO Clutch Solenoid) - Data valid, but below normal operating range
Issue description
The control module is detecting that the electrical current or voltage in the rear PTO clutch solenoid circuit is lower than the expected normal operating range. This typically indicates high resistance in the circuit, a failing solenoid coil, a poor ground, or a degraded wiring connection.
Applies to these machines
19 machines- MAGNUM AFS Connect
- Magnum 180
- Magnum 190
- Magnum 200
- Magnum 210
- Magnum 220
- Magnum 225
- Magnum 240
- Magnum 295 CVXDrive
- Puma 165
- Puma 170
- Puma 180
- Puma 210
- MXM120
- MXM130
- MXM140
- MXM155
- MXM175
- MXM190
Check the cause
Inspect the wiring harness leading to the rear PTO clutch solenoid (located on the rear axle/transmission housing) for chafing, corrosion, or broken wires.
Disconnect the solenoid and check the pins for moisture, dirt, or corrosion. Ensure the connector seats tightly.
Using a multimeter, measure the resistance (Ohms) across the PTO clutch solenoid coil pins. Compare the reading to the OEM specification; an infinite reading indicates an open circuit, while a reading outside the specified range indicates a degraded coil.
Check for proper voltage at the harness connector when the PTO switch is engaged in the cab. Verify that the ground circuit has continuity to the chassis.
Ensure the in-cab PTO engagement push-pull switch is functioning correctly and not sending erratic signals to the controller.
Repair steps
Safety First
Park the tractor on a level surface, engage the parking brake, turn off the engine, and disconnect the battery to prevent accidental short circuits.
Locate the Solenoid
Locate the rear PTO clutch valve block, typically mounted on the rear transmission housing or rear axle block.
Disconnect Wiring
Unplug the electrical harness connector from the PTO clutch solenoid.
Remove the Solenoid Coil
Remove the retaining nut or mounting bolts that secure the solenoid coil to the hydraulic valve stem.
Replace the Coil
Slide the old solenoid coil off the valve cartridge. Slide the new OEM solenoid coil onto the stem and secure it with the retaining nut/bolts. (Note: Do not overtighten the nut, as it can distort the coil).
Reconnect
Plug the electrical harness back into the new solenoid.
Test
Reconnect the battery, start the tractor, and engage the PTO to verify proper operation. Clear the 2910-17 fault code from the system using a diagnostic tool.
Parts you might need
(2)PTO Clutch Solenoid (PWM)
84173878Remanufactured option: 84173878R. Fits Case IH Magnum and Puma series.
PTO Engagement Push-Pull Switch (Cab Console)
87311254Alternative OEM Part Number: 82028271. 4-pin integrated rear electrical socket. Fits Case IH MXM series.
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