how to fix P0700 code in Tesla Model Y Current (2020-present)

Solution

1. Preparation

• Gather necessary tools and parts.
• Disconnect the vehicle's battery to prevent electrical shorts.
• Allow the vehicle to cool down before starting work on the transmission.

2. Inspect and Replace Transmission Fluid

• Tools Required: Fluid pump, funnel, transmission fluid, drain pan.
• Remove the transmission drain plug and drain the old fluid into a pan.
• Inspect the old fluid for debris or burnt smell; replace if necessary.
• Reinstall the drain plug and refill with new transmission fluid using a funnel and fluid pump, ensuring it meets manufacturer specifications.

3. Check and Repair Wiring

• Tools Required: Multimeter, wire strippers, electrical tape.
• Inspect the wiring harness for any frayed or damaged wires.
• Use a multimeter to check for continuity in the wiring.
• Repair or replace any damaged wiring and secure connections with electrical tape.

4. Recalibrate Transmission Control Module

• Tools Required: OBD-II scanner.
• Reconnect the battery.
• Use the OBD-II scanner to reset the P0700 code and perform a transmission adaptation procedure if available.
• Follow the scanner instructions to ensure the TCM is properly calibrated.

5. Test Drive and Monitor

• Take the vehicle for a test drive to ensure proper shifting and performance.
• Monitor the dashboard for any warning lights or codes that may reappear.