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Home/Cars/Genesis/G70/IG (2017-2023)/how to fix P0702 code in my Genesis G70 IG (2017-2023)

how to fix P0702 code in my Genesis G70 IG (2017-2023)

Genesis G70 IG (2017-2023)

Error Codes
Severity: highDifficulty: mediumError Code: P07022-4 hours
3 min read
462 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 P0702 transmission range sensor issues in Genesis G70 (2017-2023). Step-by-step guide with diagnostic procedures and repair instructions.

Error Code
P0702
Affected Component
Transmission
Estimated Time
2-4 hours

Safety Warnings

  • ⚠Disconnect the battery before working on electrical systems.
  • ⚠Allow the engine to cool before servicing any components.

Symptoms

  • •Check engine light illuminated
  • •Erratic shifting or harsh engagement of gears
  • •Transmission stuck in one gear
  • •Difficulty in shifting between drive and reverse
  • •Transmission slipping or losing power

Diagnostic Steps

  1. 1Scan the vehicle's onboard computer with an OBD-II scanner to confirm the P0702 code and check for any additional codes.
  2. 2Inspect the transmission range sensor for physical damage or loose connections.
  3. 3Measure the voltage output from the transmission range sensor using a multimeter to ensure it matches the specified range.
  4. 4Check the wiring harness and connectors between the TCM and the transmission range sensor for corrosion or shorts.
  5. 5Clear the codes and test drive the vehicle to see if the P0702 code reappears.

Solution

Solution

1. Preparation

  • Gather all necessary tools and parts.
  • Ensure the vehicle is parked on a level surface and the engine is cool.
  • Disconnect the negative battery terminal to prevent electrical shorts.

2. Inspect and Replace Transmission Range Sensor

  1. Locate the Sensor

    • Identify the transmission range sensor, typically found on the side of the transmission.

  2. Remove Electrical Connector

    • Carefully disconnect the electrical connector from the transmission range sensor.

  3. Unbolt the Sensor

    • Use a socket set to remove the bolts securing the sensor to the transmission.
    • Carefully pull the sensor away from the transmission.

  4. Install the New Sensor

    • Position the new transmission range sensor in place and secure it with the bolts. Torque the bolts to the manufacturer’s specification (typically around 89-106 in-lbs).
    • Reconnect the electrical connector.

3. Reconnect Battery and Test

  1. Reconnect the Battery

    • Reattach the negative battery terminal and tighten it securely.

  2. Clear Codes

    • Use the OBD-II scanner to clear the P0702 code.

  3. Test Drive

    • Start the vehicle and conduct a test drive to ensure proper shifting and 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

  • •Transmission range sensor

Additional Information

Error Code
P0702
Affected Component
Transmission
Estimated Time
2-4 hours
Difficulty
medium
Severity
high
Tools Required
4 items
Parts Required
1 item

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