Case IH 2377 (518375.11) - DEC – Transmission Control Unit (TCU) / Transmission ECU: Fault on dump / Fault on 19th gear dump valve

A generic or unknown error within the dump solenoid circuit. It indicates the system has detected an electrical fault (such as an open circuit or short) or a mechanical mismatch preventing the dump valve from operating correctly.

• VESTRUM CVX
• Puma 160
• Puma 165
• Puma 180
• Puma 195
• Puma 210
• Puma 225
• Magnum 210
• Magnum 220
• Maxxum
• Steiger

1. 1

   Disconnect the electrical connection on the dump solenoid and measure the coil resistance (should be approximately 7 Ω)

2. 2

   Check the wiring between the solenoid connection and the Transmission ECM for an open circuit, short to ground, or short to power

3. 3

   Verify if the neutral dump solenoid valve is mechanically sticking open or closed, causing a loss of transmission pressure

4. 4

   Check the transmission oil pressure sensors and clutch pedal disconnect switch for mismatches in clutch pressure commands

1. 1

   Secure the tractor

   Safely park the tractor on level ground, turn off the engine, and engage the parking brake.

2. 2

   Locate the solenoid

   Locate the transmission dump solenoid on the transmission control valve block.

3. 3

   Disconnect the solenoid

   Disconnect the electrical connector from the dump solenoid.

4. 4

   Test coil resistance

   Test the solenoid coil resistance. If the resistance is out of specification (not ~7 Ω) or internally shorted, the solenoid coil/cartridge must be replaced.

5. 5

   Inspect the wiring harness

   If the coil tests good, inspect the wiring harness back to the Transmission ECU. Repair any broken wires or replace damaged connector pins.

6. 6

   Inspect the dump valve cartridge

   If the electrical circuit is intact, remove the dump valve cartridge to inspect for mechanical binding or debris. Clean the valve body if necessary.

7. 7

   Install the dump solenoid

   Install the new or cleaned dump solenoid. Ensure new O-rings are used and lubricated with clean transmission fluid (e.g., Case IH Akcela Nexplore).

8. 8

   Reconnect the harness

   Reconnect the electrical harness.

9. 9

   Clear codes and test drive

   Clear the fault codes using a diagnostic tool or the tractor's H-menu display, and test drive the tractor to ensure proper clutch engagement and that the code does not return.