ACU 000974.04 (ACU 974.04 ) – Low Voltage Detected in Hand Throttle Sensor Circuit

ACU 000974.04 (ACU 974.04)

Code: 000974.04

Shortcode: 974.04

Description:

The error code ACU 974.04 is triggered when the voltage in the hand throttle sensor circuit is lower than expected. This low voltage condition could result from a variety of issues, such as poor electrical connections, degraded wiring, or a failing sensor.

Reaction:

Due to this voltage anomaly, the control unit has degraded function to stabilize operation and prevent unsafe equipment behavior.

Recommendations:

  • Inspect the hand throttle sensor and its connections for any signs of damage, wear, or loose connections that could result in reduced voltage.
  • Measure the voltage levels using a multimeter to verify that they are below normal operational ranges and identify possible points of failure.
  • Ensure that all wiring to and from the hand throttle sensor is intact, properly insulated, and free from corrosion.
  • Replace the hand throttle sensor if it fails to meet the specified voltage requirements upon testing.
  • If the issue persists after these corrective steps, consider consulting with a John Deere certified technician for a more in-depth diagnosis and potential system overhaul.

Note:

Continuous operation with low voltage conditions in critical sensor circuits can compromise precision and safety. It’s crucial to address such issues promptly to ensure optimal machinery performance and operator safety.


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