how to fix P0700 transmission error code in Tesla Outback 5th Generation (2015-2019)

Subaru Outback 5th Generation (2015-2019)

Error Codes

2-4 hours

Time

medium

Difficulty

high

Severity

Error Code: P0700

3 min read

547 words

⚠️ Safety Warning

This issue requires immediate attention. If you are not experienced with automotive repairs, consult a professional mechanic. Working on critical systems can be dangerous.

Problem Statement

Learn how to diagnose and fix P0700 transmission error in Tesla Outback (2015-2019). Step-by-step guide with symptoms, diagnostic steps, and repair instructions.

Error Code

P0700

Affected Component

Transmission

Estimated Time

2-4 hours

⚠️ Safety Warnings

Important safety information - read before proceeding

•Disconnect the battery before working on electrical systems.
•Allow the engine to cool before opening any components.

Symptoms

•Check engine light illuminated
•Erratic shifting or delayed engagement
•Reduced acceleration or power
•Transmission slipping
•Possible traction control issues

Diagnostic Steps

1
Scan the vehicle's computer with an OBD-II scanner to retrieve any additional transmission-related fault codes.
2
Inspect the transmission fluid level and condition; check for contamination or burnt smell.
3
Examine the wiring and connectors related to the transmission control module for signs of damage or corrosion.
4
Test the TCM for proper voltage and ground using a multimeter.
5
Perform a visual inspection of the transmission for any visible leaks or physical damage.
6
Check for any TCM software updates or recalls from Tesla.

Solution

💡 Expert Tip

For complex repairs like this, consider taking photos at each step. This helps if you need to reverse a step or consult with a mechanic. Also, keep all removed parts organized - you may need to reference them during reassembly.

Verification

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

Prevention Tips

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

Tools & Equipment Required

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

Parts Required

•Transmission fluid
•Transmission filter (if applicable)
•Transmission control module (if replacement is necessary)

Related Faults

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Diagnostic Steps

1
Scan the vehicle's computer with an OBD-II scanner to retrieve any additional transmission-related fault codes.
2
Inspect the transmission fluid level and condition; check for contamination or burnt smell.
3
Examine the wiring and connectors related to the transmission control module for signs of damage or corrosion.
4
Test the TCM for proper voltage and ground using a multimeter.
5
Perform a visual inspection of the transmission for any visible leaks or physical damage.
6
Check for any TCM software updates or recalls from Tesla.

Solution

1. Preparation

Gather necessary tools and parts.
Disconnect the vehicle’s battery to ensure safety.

Tools Required:

OBD-II scanner
Multimeter
Socket set
Torque wrench
Screwdrivers

2. Inspect and Replace Transmission Fluid (if necessary)

Sub-steps:
1. Locate the transmission fluid dipstick or fill port.
2. Remove the dipstick and check fluid level; if low, add the appropriate type of transmission fluid (refer to the owner's manual).
3. If the fluid is contaminated or burnt, drain the old fluid by removing the drain plug.
4. Replace the transmission filter if applicable.
5. Refill with new transmission fluid and check for leaks.

3. Repair or Replace Wiring/Connectors

Sub-steps:
1. Inspect the wiring harness for frayed wires or damaged connectors.
2. Clean any corrosion from connectors using electrical cleaner.
3. Repair damaged wires or replace faulty connectors as needed.

4. Test and Replace Transmission Control Module (if necessary)

Sub-steps:
1. Using a multimeter, verify the voltage and ground at the TCM connector.
2. If voltage is insufficient, trace the wiring back to the battery or fuse box and repair as necessary.
3. If the TCM is faulty, remove it by unscrewing the mounting screws and disconnecting the wiring harness.
4. Install the new TCM and secure it with screws.

5. Clear Codes and Test Drive

Sub-steps:
1. Reconnect the battery.
2. Use the OBD-II scanner to clear the P0700 code.
3. Take the vehicle for a test drive to ensure the issue is resolved and monitor for any reoccurring codes.