John Deere 000091.04 – CAB: Accelerator Pedal Signal Voltage Low

The system has detected a signal voltage from the accelerator pedal that is below the normal operating range. This fault is logged in the Cab Control Unit (CAB/TIA/OIC) and can affect the proper operation of the tractor's speed control. The condition is typically caused by electrical issues ranging from a faulty pedal position sensor to damaged wiring and connections.

• 6110M
• 6120M
• 6130M
• 6145M
• 6155M
• 6175M
• 6195M
• 6110R
• 6120R
• 6130R
• 6145R
• 6155R
• 6175R
• 6195R
• 6215R
• 8130
• 8230
• 8330
• 8430
• 8530
• 9230
• 9330
• 9430
• 9530
• 9630
• 7715
• 7815
• 204L
• 304L
• WL56
• 5010
• 6020
• 6030
• 7030
• 5E
• 5M
• 5R
• 6D
• 6E
• 6J

1. 1

   Inspect the wiring harness leading to and from the accelerator pedal position sensor for chafing, pinching, or rodent damage. Ensure all connectors are clean, secure, and free of corrosion.

2. 2

   Check for power and ground at the sensor. With the ignition on, use a multimeter to verify a 5-volt reference signal at the power supply terminal and test for continuity between the sensor's ground terminal and chassis ground.

3. 3

   Test the sensor signal by back-probing the signal wire with the ignition on. Voltage should be around 0.5 volts at rest and increase smoothly to 4.5-4.7 volts as the pedal is fully depressed. Sudden drops, spikes, or dead spots indicate a faulty sensor.

4. 4

   Check for intermittent issues by wiggling the wiring harness while monitoring the sensor's voltage to see if the reading is affected.

1. 1

   Replace sensor or pedal assembly

   If diagnostic checks point to a faulty sensor, disconnect the electrical connector. Depending on the model, either unbolt the separate sensor from the pedal assembly and install the new one, or unbolt the entire pedal assembly from the cab floor and replace it.

2. 2

   Calibrate the accelerator pedal

   Enter the tractor's diagnostic or service mode through the display and navigate to the accelerator pedal calibration menu. Slowly press the pedal from the idle position to the fully depressed position and release it as prompted by the system. Repeat if necessary to allow the control unit to learn the new sensor's voltage range.