how to fix P0700 transmission code in Toyota Corolla E170 (2013-2019)

Toyota Corolla E170 (2013-2019)

Error Codes

2-4 hours

Time

medium

Difficulty

high

Severity

Error Code: P0700

3 min read

533 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 code in Toyota Corolla E170 (2013-2019). Step-by-step guide with diagnostic procedures and repair instructions.

Error Code

P0700

Affected Component

Transmission

Estimated Time

2-4 hours

⚠️ Safety Warnings

Important safety information - read before proceeding

•Disconnect battery before working on electrical systems.
•Allow engine to cool before opening the transmission fluid filler.

Symptoms

•Check engine light illuminated
•Slipping transmission
•Rough shifting or delayed engagement
•Loss of power during acceleration
•Unusual transmission noises (grinding or whining)

Diagnostic Steps

1
Scan for error codes using an OBD-II scanner to confirm P0700 and any related codes.
2
Inspect the transmission fluid level and condition; check for contamination or burning smell.
3
Examine the wiring and connectors to the TCM for any signs of damage or corrosion.
4
Check the transmission range sensor (or neutral safety switch) for proper operation.
5
Perform a visual inspection of the transmission for external leaks or damage.
6
Clear the codes and perform a road test to see if the P0700 reoccurs and note any additional symptoms.

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
•Transmission fluid pump
•Funnel
•Socket set
•Multimeter
•Wire brush

Parts Required

•Transmission fluid (manufacturer-recommended type)
•Transmission range sensor (if faulty)

Related Faults

Share this solution

Comments

No comments yet

Be the first to share your thoughts

Back to Generation

Diagnostic Steps

1
Scan for error codes using an OBD-II scanner to confirm P0700 and any related codes.
2
Inspect the transmission fluid level and condition; check for contamination or burning smell.
3
Examine the wiring and connectors to the TCM for any signs of damage or corrosion.
4
Check the transmission range sensor (or neutral safety switch) for proper operation.
5
Perform a visual inspection of the transmission for external leaks or damage.
6
Clear the codes and perform a road test to see if the P0700 reoccurs and note any additional symptoms.

Solution

1. Preparation

Gather tools and parts required for the repair.
Ensure the vehicle is parked on a level surface and the engine is cool.
Disconnect the negative battery terminal.

2. Check and Change Transmission Fluid

Tools Required: Transmission fluid pump, funnel, socket set.
Remove the transmission fluid dipstick and check the level; add fluid if low.
If fluid is dirty or burnt, drain the old transmission fluid using a pump.
Replace with new, manufacturer-recommended transmission fluid.
- Sub-step: Use a funnel to refill the transmission through the dipstick tube.

3. Inspect and Repair Wiring/Connectors

Tools Required: Multimeter, wire brush, dielectric grease.
Inspect the harness and connectors for any frayed wires or corrosion.
Clean connectors with a wire brush and apply dielectric grease to prevent future corrosion.
Repair or replace damaged wiring as necessary.

4. Check Transmission Range Sensor

Tools Required: Multimeter, socket set.
Locate the transmission range sensor and disconnect the electrical connector.
Use a multimeter to test the sensor’s resistance according to specifications.
If faulty, replace the sensor following manufacturer guidelines.

5. Reconnect Battery and Test Drive

Reconnect the negative battery terminal.
Start the vehicle and allow it to reach operating temperature.
Take the car for a test drive to ensure smooth shifting and monitor for check engine light.