Case IH 15286 – Steering Valve Controller (SVC): Incorrect steering valve controller configuration - Configured for Auxiliary steering device

This code indicates a configuration mismatch within the steering system's software. The controller is programmed or flagged as having an "Auxiliary steering device" (such as an aftermarket GPS auto-guidance system, ISOBUS Class 3 steering, or a Fast Steer module) enabled, but the hardware checksum, physical wiring, or secondary controller data does not match this configuration.

• Steiger T4B
• Case IH AFS Connect Magnum Series 180, 200, 220, 240, 250, 280, 310, 340, 380
• Case IH Vestrum Series 100, 110, 120, 130
• Case IH Puma Series 115, 125, 140, 155, 165, 180, 195, 210
• Case IH Steiger / Quadtrac Series

1. 1

   Verify if the tractor actually has an auxiliary steering system installed (e.g., Trimble, Ag Leader, or factory AFS autoguidance)

2. 2

   Check the ISOBUS diagnostic page on the Pro 1200 display (or equivalent AFS Pro monitor) to verify the steering mode setting

3. 3

   Inspect the electro-hydraulic steering lockout switch (roading switch) to ensure it is functioning correctly and not locked in road mode

4. 4

   Using the Case IH Electronic Service Tool (EST), verify the software versions of the Steering Valve Controller (SVC) and the Steering Redundant Controller (SRC)

1. 1

   Connect Diagnostic Tool

   Connect the Case IH Electronic Service Tool (EST) to the tractor's diagnostic port.

2. 2

   Access Controller Configuration

   Navigate to the Steering Valve Controller (SVC) configuration menu.

3. 3

   Verify Auxiliary Steering Setting

   If the tractor DOES NOT have an auxiliary steering device: The configuration is incorrectly enabled. Change the setting to disable the auxiliary steering device. If the tractor DOES have an auxiliary steering device: Ensure the configuration dataset matches the installed hardware (e.g., ISOBUS Class 3 steering vs. standard auto-guidance). Reload the Advanced Steering Configuration controller dataset if necessary.

4. 4

   Perform Calibrations

   A configuration change or software flash will require recalibration. Perform the Wheel Angle Sensor Calibration followed by the Steering Valve Calibration using the EST or the in-cab display.

5. 5

   Clear and Test

   Clear the fault code stack. Cycle the ignition key (turn off, wait 30 seconds, turn back on). Turn the steering wheel lock-to-lock and engage the auto-steer (if equipped) to ensure the code does not return.