P0709
Transmission Range Sensor A Circuit Intermittent
P0709 is an OBD-II diagnostic trouble code meaning: Transmission Range Sensor A Circuit Intermittent. Common causes: damage to the range sensor wiring harness, oxidation or poor contact in sensor connectors. Estimated repair cost: $17–56.
Symptoms
- Incorrect display of gear selector position on the instrument panel
- The car goes into emergency transmission mode
- Difficulty shifting gears
- Inability to start the engine in some selector positions
- Flashing check engine or transmission light
Causes
- Damage to the range sensor wiring harness
- Oxidation or poor contact in sensor connectors
- Malfunction of the gear range sensor itself
- Sensor circuit grounding problems
- Mechanical damage to the sensor or its drive mechanism
How to Fix
- Check the integrity of the sensor wiring harness
- Clean and check the contacts in the sensor connectors
- Check the resistance and signal of the sensor with a multimeter
- If necessary, replace the gear range sensor
- Check and, if necessary, restore circuit grounding
Related codes
Error P0709 by Vehicle Brand
FAQ
What does the P0709 code mean?
P0709 is an OBD-II diagnostic trouble code that indicates: Transmission Range Sensor A Circuit Intermittent
What causes a P0709 error code?
The most common causes of P0709 include: Damage to the range sensor wiring harness; Oxidation or poor contact in sensor connectors; Malfunction of the gear range sensor itself; Sensor circuit grounding problems.
How do I fix a P0709 diagnostic trouble code?
To fix P0709: Check the integrity of the sensor wiring harness. Clean and check the contacts in the sensor connectors. Check the resistance and signal of the sensor with a multimeter. For a complete diagnosis, use an OBD-II scanner.
Is it safe to drive with P0709?
Limited driving only, diagnose soon
How much does it cost to fix P0709?
The estimated repair cost for P0709 is $17–56. Actual cost depends on your vehicle, location, and labor rates.
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