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Home/Cars/Toyota/Corolla/E140 (2006-2013)/how to resolve P0706 code in Toyota Corolla E140 (2006-2013)

how to resolve P0706 code in Toyota Corolla E140 (2006-2013)

Toyota Corolla E140 (2006-2013)

Error Codes
Severity: highDifficulty: mediumError Code: P07062-4 hours
3 min read
498 words

⚠️ Safety Warning

This issue requires immediate attention. If you are not experienced with automotive repairs, consult a professional mechanic. Working on critical systems can be dangerous.

Problem Statement

Learn how to diagnose and fix P0706 code related to the Transmission Range Sensor in a 2006-2013 Toyota Corolla E140. Step-by-step guide included.

Error Code
P0706
Affected Component
Transmission
Estimated Time
2-4 hours

Safety Warnings

  • ⚠Disconnect the battery before working on electrical systems to prevent shorts.
  • ⚠Ensure the engine is cool before starting work on the transmission.

Symptoms

  • •Check engine light illuminated
  • •Transmission stuck in one gear or fails to shift
  • •Erratic or harsh shifting of gears
  • •Inability to start the vehicle in Park or Neutral
  • •Possible poor fuel economy

Diagnostic Steps

  1. 1Scan the vehicle's OBD-II system using a diagnostic scanner to confirm the P0706 code and check for any additional codes.
  2. 2Inspect the Transmission Range Sensor (TRS) connector and wiring for signs of damage or corrosion.
  3. 3Check the transmission fluid level and condition; low or contaminated fluid can affect transmission operation.
  4. 4Verify the TRS operation by testing its resistance with a multimeter according to specifications.
  5. 5Inspect the vehicle’s battery and ground connections to ensure proper voltage supply to the TRS.

Solution

Solution

1. Preparation

  • Gather necessary tools and parts.
  • Disconnect the negative battery terminal to prevent electrical shorts.
  • Ensure the vehicle is on a level surface and the parking brake is engaged.

2. Remove the Transmission Range Sensor

  • Locate the TRS on the side of the transmission.
  • Disconnect the electrical connector from the TRS by pressing the release tab.
  • Remove the mounting bolts securing the TRS to the transmission using a socket set.
  • Carefully pull the TRS away from the transmission.

3. Inspect and Clean

  • Inspect the TRS for any signs of wear or damage; replace if necessary.
  • Clean the mounting surface on the transmission to ensure a proper seal for the new sensor.

4. Install New Transmission Range Sensor

  • Position the new TRS in place and secure it with the mounting bolts. Torque the bolts to the manufacturer's specifications (typically around 10-15 ft-lbs).
  • Reconnect the electrical connector ensuring it clicks into place securely.

5. Reconnect Battery and Test

  • Reconnect the negative battery terminal.
  • Clear the P0706 code using the OBD-II scanner.
  • Start the vehicle and check for proper operation of the transmission.

Verification

After completing the repair, verify that the issue has been resolved:

  • ✓Test the affected component to ensure it functions correctly
  • ✓Check for any error codes or warning lights
  • ✓Monitor the vehicle for a few days to ensure the issue does not recur

Prevention Tips

To prevent this issue from occurring again:

  • •Follow the manufacturer's recommended maintenance schedule
  • •Address warning signs early before they develop into major issues
  • •Use quality parts and fluids recommended for your vehicle
  • •Keep detailed records of all repairs and maintenance

Tools & Equipment Required

  • •OBD-II scanner
  • •Socket set
  • •Multimeter
  • •Torque wrench

Parts Required

  • •New Transmission Range Sensor
  • •Transmission fluid (if required)

Additional Information

Error Code
P0706
Affected Component
Transmission
Estimated Time
2-4 hours
Difficulty
medium
Severity
high
Tools Required
4 items
Parts Required
2 items

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