DTC List for DirecSteer®, HDU, MDU, and IDU

Reduce machine speed below maximum engage speed to engage auto-steering. Maximum auto-steer engage speeds are as follows:

• 16.1 km/h [10 mph] for machines operating in Europe with homologation Approval or certification of devices (especially electrical and communications devices) for use in specific regions or countries. terms accepted.
• 19 km/h [12 mph] for tracked machines and swathers.
• 29 km/h [18 mph] for units capable of high-speed steering and not subject to homologation terms.

Note:  Contact a local Raven dealer for additional assistance with high-speed steering unlocks.

Input voltage is above the upper limit (32 V). Optimal system voltage should be 12 V.

1. Check cabling for shorts or loose connections.
2. Check the machine battery voltage.

Input voltage is below the lower limit (9 V).

1. Check cabling for broken or frayed wiring.
2. Check the machine battery voltage.

1. Cycle power to the machine.

2. If the error persists, contact your local Raven dealer or the Raven Technical Service team.

1. Cycle power to the machine.

2. If the error persists, contact your local Raven dealer or the Raven Technical Service team.

Resume switch is stuck ON.

1. Check the resume switch and test functionality in the universal terminal (UT A Universal Terminal (formerly Virtual Terminal) is an electronic display or console capable of interfacing with ECUs on an ISOBUS network.). Review the Step Response Test for assistance with testing the switch.
2. Check resume switch cabling and that cable connections are properly seated.

Wheel angle sensor (WAS) center position calibration is incomplete. To complete the calibration:

1. Center the steering wheel and continue to drive at a speed above 2 km/h [1.2 mph] with the steering wheel in the center position for at least 5 seconds.

2. Review Wheel Angle and Implement Position Sensor Settings for additional assistance with calibrating the WAS position sensor.

3. If the error persists, contact your local Raven dealer or the Raven Technical Service team.

Wheel angle sensor (WAS) signal voltage is above the expected range.

1. Recalibrate the WAS. Review the Wheel Angle and Implement Position Sensor Settings for assistance with completing this procedure.
2. Check mounting of the WAS or for damage to the WAS.

3. If the error persists, contact your local Raven dealer or the Raven Technical Service team.

The wheel angle sensor (WAS) measurement is not aligned with the yaw rate sensor measurement.

1. Cycle power to the machine.
2. Recalibrate the WAS. Review the Wheel Angle and Implement Position Sensor Settings for assistance with completing this procedure.
3. Ensure cable connections are properly seated.
4. Check mounting of the WAS or for damage to the WAS.

Wheel angle sensor (WAS) signal voltage is below the expected range.

1. Recalibrate the WAS. Review the Wheel Angle and Implement Position Sensor Settings for assistance with completing this procedure.
2. Check mounting of the WAS or for damage to the WAS.

3. If the error persists, contact your local Raven dealer or the Raven Technical Service team.

The disengage sensor signal (#1) is above the upper limit.

1. Cycle power to the machine.
2. Ensure cable connections are properly seated.

3. Contact a local Raven dealer for additional assistance.

The disengage sensor signal (#1) is below the lower limit.

1. Cycle power to the machine.
2. Ensure cable connections are properly seated.

3. Contact a local Raven dealer for additional assistance.

The steering control unit (SCU is not receiving the yaw rate CAN message.

1. Ensure cable connections are properly seated.
2. Inspect for damage to cables or cable connections including bent or pushed in pins.

3. Contact a local Raven dealer for additional assistance.

The input guidance line or path for auto-steering is not valid.

1. Check that GNSS Global Navigation Satellite System corrections are converged.
2. Close the active job or task.
3. Cycle power to the Raven field computer or UT display.
4. Resume the previous job or task.

5. If the error persists, contact your local Raven dealer or the Raven Technical Service team.

1. Check the disengage switch status in the object pool The user interface for a system or feature connected to an ISOBUS UT.. Review Steering Disengage Settings (Machine Steering Only) for assistance with disengage switch status. The switch should only be active when the steering wheel is moving.
2. Adjust the disengage threshold value if the system disengages without the operator manipulating the steering wheel. Review Steering Disengage Settings (Machine Steering Only) for assistance with disengage switch status.
3. Check the switch cabling and the sensor voltage/current.

4. If the error persists, contact your local Raven dealer or the Raven Technical Service team.

A memory error has occurred while trying to use the interface.

1. Cycle power to the machine.

2. If the error persists, contact your local Raven dealer or the Raven Technical Service team.

Reference voltage of 3.3 V is not present (either high or low).

1. Cycle power to the machine.

2. Contact a local Raven dealer for additional assistance.

Battery voltage.

1. Cycle power to the machine.
2. Check the machine electrical system for issues.

3. Contact a local Raven dealer for additional assistance.

The actuator type does not match the jumper selection.

1. Ensure cable connections are properly seated.
2. Inspect the connectors near the SC1/HDU for a jumper wire and check connection of the wire.

3. Contact a local Raven dealer for additional assistance.

The machine steering valve has indicated a fault.

1. Ensure cable connections are properly seated.
2. Cycle power to the machine.

3. Contact a local Raven dealer for additional assistance.

Amperage supplied to the left or right PWM valve does not match return.

1. Ensure cable connections are properly seated.

2. Contact a local Raven dealer for additional assistance.

Amperage supplied to the left and right solenoids is too low.

1. Ensure cable connections are properly seated.
2. Check cabling for broken or frayed wiring.

Amperage supplied to the left and right solenoids is too high.

1. Ensure cable connections are properly seated.
2. Check cabling for shorts or loose connections.

Unexpected amperage supplied to the left and right solenoids while auto-steering is not active.

1. Ensure cable connections are properly seated.
2. Check cabling for shorts or loose connections.

Amperage supplied to left solenoid is too low.

1. Ensure cable connections are properly seated.
2. Check cabling for broken or frayed wiring.

Amperage supplied to left solenoid is too high.

1. Ensure cable connections are properly seated.
2. Check cabling for shorts or loose connections.

Unexpected amperage supplied to the left solenoid while auto-steering is not active.

1. Ensure cable connections are properly seated.
2. Check cabling for shorts or loose connections.

Amperage supplied to right solenoid is too low.

1. Ensure cable connections are properly seated.
2. Check cabling for broken or frayed wiring.

Amperage supplied to right solenoid is too high.

1. Ensure cable connections are properly seated.
2. Check cabling for shorts or loose connections.

Unexpected amperage supplied to the right solenoid while auto-steering is not active.

1. Ensure cable connections are properly seated.
2. Check cabling for shorts or loose connections.

Amperage supplied to double blocker solenoid does not match amperage return.

1. Ensure cable connections are properly seated.
2. Check for supply voltage on the connections to the machine steering valve.

3. Contact a local Raven dealer for additional assistance.

Amperage supplied to double blocker solenoid too low.

1. Ensure cable connections are properly seated.
2. Check cabling for broken or frayed wiring.
3. Check for supply voltage on the connections to the machine steering valve.

Amperage supplied to double blocker solenoid is too high.

1. Ensure cable connections are properly seated.
2. Check cabling for shorts or loose connections.
3. Check for supply voltage on the connections to the machine steering valve.

Unexpected amperage supplied to the double blocker solenoid while auto-steering is not active.

1. Ensure cable connections are properly seated.
2. Check cabling for shorts or loose connections.
3. Check for supply voltage on the connections to the machine steering valve.

Amperage supplied to double blocker solenoid too low.

1. Ensure cable connections are properly seated.
2. Check cabling for broken or frayed wiring.
3. Check for supply voltage on the connections to the machine steering valve.

Amperage supplied to double blocker solenoid is too high.

1. Ensure cable connections are properly seated.
2. Check cabling for shorts or loose connections.

Unexpected amperage supplied to the double blocker solenoid while auto-steering is not active.

1. Ensure cable connections are properly seated.
2. Check cabling for shorts or loose connections.

Amperage output from sensor (e.g. wheel angle sensor, disengage sensor, etc.) is too high.

1. Ensure cable connections are properly seated.
2. Check cabling for shorts or loose connections.

Amperage output from sensor (e.g. wheel angle sensor, disengage sensor, etc.) is too high.

1. Ensure cable connections are properly seated.
2. Check cabling for shorts or loose connections.

No communication to the safety micro.

1. Cycle power to the machine.

2. If the error persists, contact your local Raven dealer or the Raven Technical Service team.

1. Check the wheel angle sensor (WAS) and sensor mounting for damage.
2. Recalibrate the WAS. Refer to the Wheel Angle and Implement Position Sensor Settings for assistance with calibrating the sensor.

1. Check the wheel angle sensor (WAS) and sensor mounting for damage.
2. Recalibrate the WAS. Refer to the Wheel Angle and Implement Position Sensor Settings for assistance with calibrating the sensor.

1. Check the wheel angle sensor (WAS) and sensor mounting for damage.
2. Recalibrate the WAS. Refer to the Wheel Angle and Implement Position Sensor Settings for assistance with calibrating the sensor.

1. Check the wheel angle sensor (WAS) and sensor mounting for damage.
2. Recalibrate the WAS. Refer to the Wheel Angle and Implement Position Sensor Settings for assistance with calibrating the sensor.

1. Check the disengage sensor and sensor mounting for damage.
2. Recalibrate the disengage sensor. Refer to the Steering Disengage Settings (Machine Steering Only) for assistance with calibrating the sensor.

1. Check the disengage sensor and sensor mounting for damage.
2. Recalibrate the disengage sensor. Refer to the Steering Disengage Settings (Machine Steering Only) for assistance with calibrating the sensor.

Wheel angle movement detected without operator disengage detected or auto-steer control active.

1. Ensure cable connections are properly seated.

2. Contact a local Raven dealer for additional assistance.

No wheel angle sensor (WAS) change detected while commanding the valve (HDU) or motor (MDU).

1. Ensure cable connections are properly seated.
2. Recalibrate the WAS. Refer to the Wheel Angle and Implement Position Sensor Settings for assistance with calibrating the sensor.
3. Check for software compatibility DTC Diagnostic Trouble Code messages (253875.13 or 523916.13). If these DTCs are also present, update the SGC and SCU software as appropriate.

No current draw detected when commanding the valve (HDU) or motor (MDU).

1. Ensure cable connections are properly seated.
2. Recalibrate the WAS. Refer to the Wheel Angle and Implement Position Sensor Settings for assistance with calibrating the sensor.
3. If the machine steering valve offers LED status lights, review the machine operator manual for additional troubleshooting procedures.

The steering control unit (SCU) does not detect a navigation controller on the CANbus.

1. Ensure cable connections are properly seated.
2. Inspect for damage to cables or cable connections including bent or pushed in pins.
3. Check CANbus communication.

The current steering guidance controller (SGC) software is out of date. Update the SGC and HDU software.