John Deere 1510 – E02 / LC2: Chopper Vane Angle Sensor Voltage Too High

The Chopper Vane Angle Sensor is reporting a voltage that is too high, exceeding 4.97 VDC. This indicates that the sensor's output signal is outside its normal operating range, pointing to a fault within the sensor itself or its electrical wiring.

• 9540 WTS
• 9560 WTS
• 9580 WTS
• 9640 WTS
• 9660 WTS
• 9680 WTS
• 9650 STS
• 9750 STS
• 9660 STS
• 9760 STS
• 9670 STS
• 9770 STS
• 9870 STS
• 9880 STS
• S680
• S690

1. 1

   Access and record all active and stored codes from the Right Control Unit (E02) or Left Power Module 2 (LC2) using the machine's display (such as the Cornerpost Display or VISIONTRAK).

2. 2

   Visually inspect the wiring harness and connectors leading to the chopper vane angle sensor for chafing, corrosion, or loose connections.

3. 3

   Check the live voltage reading from the chopper vane angle sensor using the machine's diagnostic interface (circuit codes cc# 781, cc# 782, or cc# 824). A reading consistently above 4.5 V or 4.97 V confirms the high voltage condition.

4. 4

   Inspect the chopper vane linkage for any mechanical damage or obstruction that might be forcing the sensor beyond its normal range of motion.

1. 1

   Address high voltage fault

   If both 'voltage too high' (1510.03) and 'out of calibration' (1510.13) codes are present, resolve the high voltage issue first. Calibration will fail if the sensor's voltage is outside its operational range of 0.5 V to 4.5 V.

2. 2

   Repair wiring

   If diagnostic checks reveal damaged wiring or connectors, repair or replace the faulty components. Ensure all connections are clean and secure.

3. 3

   Replace sensor

   If the wiring is intact and the sensor voltage remains high, the sensor itself is likely faulty and requires replacement.

4. 4

   Calibrate sensor

   After replacing the sensor, navigate to the calibration menu on the diagnostic display. Select the specific calibration for the chopper vanes (ICAL) and follow the on-screen prompts to move the vanes to their minimum and maximum positions.

5. 5

   Clear codes

   After the repair and calibration are complete, clear the diagnostic trouble codes from the control unit.

6. 6

   Verify operation

   Operate the chopper vane adjustment system to ensure it functions correctly and that the fault codes do not reappear.