p0705 transmission range sensor circuit malfunction prndl input
P0705 Transmission Range Sensor Circuit Malfunction (PRNDL Input)
OBD-II Code P0705: This code indicates a malfunction in the transmission range sensor circuit, which is responsible for detecting the gear position (Park, Reverse, Neutral, Drive, Low) and sending this information to the vehicle’s powertrain control module (PCM).
Description: The transmission range sensor provides input to the PCM about the current gear selection. If there is an issue with this sensor or its circuit, it can cause incorrect gear readings and affect vehicle operation.
- P0705 Definition: Transmission Range Sensor Circuit Malfunction (PRNDL Input)
p0705 – Transmission Range Sensor Circuit Malfunction (PRNDL Input) – Moderate
Common Causes
p0705 – Transmission Range Sensor Circuit Malfunction (PRNDL Input)
Common Causes:
- Faulty transmission range sensor
- Corroded or damaged wiring/connectors in the transmission range sensor circuit
- Low transmission fluid level
- Internal transmission issues
Common Misdiagnosis
OBD2 Code: P0705
Description: Transmission Range Sensor Circuit Malfunction (PRNDL Input)
Common Misdiagnosis: Replacing the transmission range sensor without checking for wiring issues or connector problems.
Common Diagnostic Steps
OBD2 Code: P0705
Description: Transmission Range Sensor Circuit Malfunction (PRNDL Input)
- Verify the code with an OBD-II scanner and clear it to see if it returns.
- Inspect the transmission range sensor for any visible damage or disconnection.
- Check the wiring and connectors leading to the transmission range sensor for corrosion, fraying, or breaks.
- Test the voltage and ground signals at the transmission range sensor using a multimeter.
- Ensure that the gear selector is properly aligned and functioning correctly.
- If equipped, check for any related Technical Service Bulletins (TSBs) from the vehicle manufacturer.
- If necessary, replace the faulty transmission range sensor after confirming diagnosis.
- Re-test to ensure proper operation and that no codes return after repair.