John Deere 3510.03 – OIC, AIC, ECU, or TSC: Sensor Supply #2 Voltage Out of Range High

Indicates that the 5-volt sensor supply circuit number 2 is experiencing a voltage above normal specifications (typically reading above 5.25V). This condition usually means the 5V supply line is shorted to a higher voltage source, such as a 12V battery circuit.

• 6110R
• 6120R
• 6130R
• 6145R
• 6155R
• 6175R
• 6195R
• 6215R
• 6090MC
• 6100MC
• 6110MC
• 6090RC
• 7185J
• 7205J
• 8245R
• 8320R
• 8400R
• 9470RT
• 9520RT
• 9570RT
• 9230
• 7180
• 7280
• 7380
• 7480
• 7580
• 7780
• 7980
• 770G
• 770GP
• 772G
• 772GP
• CH570
• CH670
• 3520

1. 1

   Identify which module (AIC, OIC, ECU) is logging the code to isolate the correct Sensor Supply 2 circuit

2. 2

   Measure the voltage at the 5V supply lead for the affected circuit to verify if it exceeds 5.25V

3. 3

   Inspect all wiring and connections on the 5-volt Sensor Supply 2 circuit for signs of damage, fraying, loose connections, or corrosion that could cause a short to a 12V power source

4. 4

   Verify the ground connections for the module and sensors are secure and free of corrosion, as poor grounds can cause voltage irregularities

1. 1

   Power Down

   Turn off the machine and disconnect the battery to ensure safety while inspecting the electrical system.

2. 2

   Locate the Circuit

   Using the machine's specific technical manual and wiring diagram, locate the sensors powered by the specific module's (e.g., AIC or OIC) 5V Sensor Supply 2 circuit.

3. 3

   Sensor Isolation Test

   Disconnect the sensors on this circuit one at a time. Reconnect the battery, turn the key on, and monitor the fault code. If the code changes to "Out of Range Low" (003510.04) or goes inactive when a specific sensor is unplugged, that sensor is internally shorted and must be replaced.

4. 4

   Harness Inspection

   If all sensors are disconnected and the voltage at the harness connector remains above 5.25V, the short to battery (12V) is located within the wiring harness. Trace the harness back to the control module, looking for rubbed through insulation or melted wires.

5. 5

   Repair/Replace

   Repair the damaged section of the wiring harness or replace the affected sensor.

6. 6

   Module Verification

   If the wiring harness tests perfectly (no shorts to 12V) and all sensors are functioning, the control unit itself (AIC, OIC, or ECU) may have an internal fault causing it to output excessive voltage. In this case, the module must be replaced or reprogrammed.

7. 7

   Final Testing

   Clear the diagnostic trouble codes, restart the machine, and monitor the system to ensure the voltage remains stable and the code does not return.