The P0805 trouble code relates to a malfunction in the clutch position sensor circuit. Here’s what you should know:
P0805 Clutch Position Sensor Circuit
Code symptoms P0805.
1. Illumination of the Check Engine Light (CEL) or Malfunction Indicator Lamp (MIL) on the dashboard.
2. Difficulty shifting gears or engaging or disengaging the clutch smoothly.
3. Engine stalling when attempting to shift gears.
4. Other transmission-related symptoms such as harsh shifting or slipping may occur, depending on the underlying cause.
Causes of the code P0805.
1. Faulty clutch position sensor.
2. Wiring or connector issues in the clutch position sensor circuit.
3. Corrosion or poor connections in the circuit.
4. A defective transmission control module (TCM) or powertrain control module (PCM).
Code Solutions P0805.
1. Use an OBD-II scanner to retrieve freeze frame data and any other stored trouble codes. This information can provide insight into when and how the malfunction occurred.
2. Inspect the wiring and connectors in the clutch position sensor circuit for damage, corrosion, or loose connections. Repair or replace any damaged components as needed.
3. Test the clutch position sensor itself for proper operation. This may involve using a multimeter to check for continuity and voltage output while manually actuating the clutch.
4. Test the clutch position sensor circuit for continuity and proper voltage using a multimeter. If the circuit is open or has voltage issues, further diagnosis is necessary to determine the cause.
5. If the wiring and connectors check out okay, test the TCM or PCM for proper operation. This may involve using a diagnostic scan tool to communicate with the module and retrieve any stored trouble codes or data.
6. Clear the trouble codes from the vehicle’s computer memory and test the clutch operation to see if the issue is resolved. If the code returns or the clutch still doesn’t work correctly, further diagnosis or repairs may be required.