how to fix P0700 transmission code on Tesla Outback 4th Generation (2010-2014)

Solution

1. Preparation

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

2. Check and Replace Transmission Fluid

• Sub-steps:
  • Locate the transmission dipstick or access point.
  • Using a funnel, add the correct type of transmission fluid if low. Use Subaru ATF or equivalent.
  • If fluid is contaminated or burnt, drain the old fluid completely.
  • Refill with new transmission fluid to the proper level.
• Tools Required: Transmission fluid, funnel, drain pan.

3. Inspect and Repair Wiring

• Sub-steps:
  • Remove the protective cover from the wiring harness leading to the TCM.
  • Examine wires for fraying, breaks, or corrosion.
  • Repair or replace damaged segments of the wiring harness as necessary.
• Tools Required: Wire cutters, soldering iron, heat shrink tubing.

4. Replace TCM (if necessary)

• Sub-steps:
  • Disconnect the battery again to ensure safety.
  • Locate the TCM, usually found near the transmission.
  • Disconnect the wiring harness from the TCM.
  • Remove the mounting screws and carefully take out the old TCM.
  • Install the new TCM in the reverse order of removal.
• Tools Required: Socket set, screwdriver.

5. Reconnect Battery and Clear Codes

• Reconnect the battery.
• Use the OBD-II scanner to clear the P0700 code and any related codes stored in the system.
• Start the vehicle and allow it to idle for a few minutes.