OBD-II Error Code P0706: How to Fix It

Medium 1-3 hours Medium Severity Verified July 2026
Error Code
P0706
Brand
OBD-II Generic
Product Type
automotive
Severity
Medium
DIY Difficulty
Medium
Estimated Fix Time
1-3 hours
Error code P0706 indicates a problem with your transmission range sensor circuit, which tells the engine control module what gear your automatic transmission is in. This sensor malfunction can cause shifting problems, starting issues, and trigger your check engine light.
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Tools You'll Need

How to Fix Error Code P0706

  1. Scan for Additional Codes

    Ensure the vehicle is parked on level ground with the parking brake engaged before beginning diagnostics.
  2. Check Transmission Fluid Level and Condition

    Be careful of hot transmission fluid and moving parts. Keep hands and tools away from the engine fan.
  3. Inspect Transmission Range Sensor Connector

    Turn off the ignition and remove the key before disconnecting any electrical connectors.
  4. Test Transmission Range Sensor Resistance

  5. Check Wiring Harness

  6. Verify Sensor Mounting and Adjustment

  7. Replace Transmission Range Sensor

    Clean the mounting area thoroughly before installing the new sensor to ensure proper sealing.
  8. Clear Codes and Test Drive

    Test drive in a safe area and be prepared for potential shifting issues during the initial test.

Parts You May Need

Transmission Range Sensor
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Electrical Contact Cleaner
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Transmission Fluid
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Transmission Range Sensor
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Electrical Contact Cleaner
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Transmission Fluid
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Transmission Range Sensor
Check Price on Amazon
Electrical Contact Cleaner
Check Price on Amazon
Transmission Fluid
Check Price on Amazon
Transmission Range Sensor
Check Price on Amazon
Electrical Contact Cleaner
Check Price on Amazon
Transmission Fluid
Check Price on Amazon
Transmission Range Sensor
Check Price on Amazon
Electrical Contact Cleaner
Check Price on Amazon
Transmission Fluid
Check Price on Amazon
Transmission Range Sensor
Check Price on Amazon
Electrical Contact Cleaner
Check Price on Amazon
Transmission Fluid
Check Price on Amazon
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When to Call a Professional

Call a professional mechanic if you're uncomfortable working with electrical components, if multiple transmission codes are present, if the transmission is slipping or not shifting properly, or if the problem persists after replacing the sensor. Internal transmission problems require specialized tools and expertise.

Frequently Asked Questions

What does P0706 error code mean?
P0706 indicates a malfunction in the transmission range sensor circuit. This sensor tells the computer what gear position your automatic transmission is in, and when it fails, it can cause shifting problems and prevent proper engine operation.
Can I drive with P0706 code?
While you may be able to drive short distances, it's not recommended. P0706 can cause unpredictable shifting, failure to start, or getting stuck in one gear. Drive only to a safe location or repair facility.
How much does it cost to fix P0706?
DIY repairs typically cost $50-150 for a new transmission range sensor. Professional repair costs range from $200-500 including labor. The exact cost depends on your vehicle make and model.
What causes P0706 error code?
Common causes include a faulty transmission range sensor, damaged wiring or connectors, low transmission fluid, misaligned sensor, or internal transmission problems affecting the sensor's operation.
How do I reset P0706 code?
Use an OBD2 scanner to clear the code after completing repairs. Simply clearing the code without fixing the underlying problem will cause it to return. The issue must be resolved for the code to stay cleared.