my Genesis G70 has a check engine light and code P0700 what do I do

Learn how to diagnose and fix P0700 transmission control malfunction in Genesis G70. Step-by-step guide with diagnostic procedures and repair instructions.

Solution

1. Preparation

• Gather necessary tools and parts.
• Ensure the vehicle is parked on a flat surface and the engine is cool.
• Disconnect the battery to avoid any electrical issues while working on the vehicle.

2. Inspect and Replace Transmission Fluid

• Tools Required: Transmission fluid funnel, drain pan, socket set.
• Remove the transmission fluid pan by unbolting it using a socket set.
• Allow the old fluid to drain completely into the drain pan.
• Inspect the old fluid for metal shavings or debris.
• Replace the transmission filter if applicable.
• Reinstall the pan with a new gasket and torque bolts to manufacturer's specifications.
• Fill the transmission with the appropriate type and amount of new fluid through the dipstick or fill port.

3. Repair or Replace Wiring/Connectors

• Tools Required: Wire stripper/crimper, electrical tape, multimeter.
• Inspect the wiring harness for any frayed or damaged wires.
• Use a multimeter to test for continuity and voltage at the connectors.
• Repair any damaged wiring by splicing in new wire or replacing connectors as needed.

4. TCM Inspection and Replacement

• Tools Required: Socket set, OBD-II scanner.
• Remove the TCM from its mounting location using a socket set.
• Inspect the TCM for any visible signs of damage or corrosion.
• If necessary, replace the TCM with a new unit, ensuring it is properly programmed to your vehicle.
• Reinstall the TCM and reconnect all wiring harnesses.