how to diagnose U0101 code in Genesis G70 IG (2017-2023)?

• •Check engine light illuminated
• •Transmission not shifting properly
• •Rough or erratic engine idle
• •Reduced engine power
• •Inability to engage gears

1. 1Scan for error codes using an OBD-II scanner to confirm U0101 and check for additional codes.
2. 2Inspect the TCM and its connectors for any signs of damage, corrosion, or loose connections.
3. 3Verify the vehicle's battery voltage is within normal range (12.4 to 12.8 volts) and check for any weak or dead cells.
4. 4Check the wiring harness between the Engine Control Module (ECM) and TCM for continuity and shorts.
5. 5Inspect the fuses related to the transmission and control modules in the fuse box.
6. 6Perform a visual inspection of the TCM for signs of internal failure or water damage.

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

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

• •OBD-II scanner
• •Multimeter
• •Electrical contact cleaner
• •Socket set
• •Torque wrench
• •Wire harness repair kit

• •Transmission Control Module (if replacement is necessary)
• •Wire harness repair kit (if wiring issues are found)