how to fix transmission codes P0701 to P0799 in Tesla Outback 6th Generation (2020-2024)

Learn how to diagnose and fix transmission codes P0701-P0799 in Tesla Outback 6th Generation. Step-by-step guide with symptoms, diagnostics, and repair instructions.

Solution

1. Preparation

• Gather all necessary tools and parts.
• Disconnect the vehicle's battery to ensure safety while working on the electrical components.

Tools Required:

• OBD-II scanner
• Multimeter
• Socket set
• Torque wrench
• Screwdrivers

2. Fluid Inspection and Replacement

• Check the transmission fluid level using the dipstick.
• If low, add the manufacturer-recommended transmission fluid.
• If the fluid is contaminated or burnt, drain the transmission fluid:
  1. Place a drain pan under the transmission.
  2. Remove the drain plug and allow the fluid to fully drain.
  3. Reinstall the drain plug and torque to manufacturer specifications.
  4. Refill with new, manufacturer-approved transmission fluid through the dipstick tube.

3. Wiring and Connector Inspection

• Visually inspect the wiring harness and connectors for wear or damage.
• Clean connectors with electrical contact cleaner and reseat them.
• Repair or replace any damaged wiring or connectors as needed.

4. TCM Testing and Replacement

• Using a multimeter, check the TCM for proper voltage and continuity.
• If the TCM is faulty, remove it:
  1. Disconnect the electrical connectors from the TCM.
  2. Remove the mounting bolts and take out the TCM.
• Install a new or refurbished TCM:
  1. Position the new TCM in place.
  2. Secure it with bolts and reconnect the electrical connectors.

5. Sensor Inspection and Replacement

• Inspect the input and output speed sensors:
  1. Locate the sensors on the transmission.
  2. Remove the sensors by unscrewing them.
• Test the sensors with a multimeter for resistance and proper operation.
• Replace sensors if they are faulty:
  1. Install new sensors in their respective locations.
  2. Torque to manufacturer specifications.