how to fix P0700 transmission code on Toyota RAV4 XA40 (2013-2018)

Toyota RAV4 XA40 (2013-2018)

Error Codes

2-4 hours

Time

medium

Difficulty

high

Severity

Error Code: P0700

4 min read

602 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 RAV4 XA40 (2013-2018). 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 the battery before working on electrical systems to prevent shorts.
•Allow the engine to cool before opening the transmission system to avoid burns.

Symptoms

•Check engine light illuminated
•Transmission slipping or harsh shifting
•Delayed engagement when shifting into gear
•Poor acceleration response
•Increased fuel consumption
•Vehicle may enter 'limp mode' for safety

Diagnostic Steps

1
Scan for error codes using an OBD-II scanner to confirm the P0700 code and check for any additional transmission-related codes.
2
Inspect the transmission fluid level and condition; look for signs of contamination or burnt smell.
3
Check the wiring and connectors related to the TCM for any signs of damage, corrosion, or loose connections.
4
Test the TCM for proper function using a multimeter to measure voltage and resistance as specified in the service manual.
5
Inspect the vehicle’s speed sensors and transmission range sensor for faults.
6
Perform a visual inspection of the transmission for any external leaks or physical damage.

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
•Fluid pump

Parts Required

•Transmission fluid (ATF WS)
•Transmission filter (if applicable)
•TCM (if faulty)
•Speed sensors (if faulty)

Related Faults

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Diagnostic Steps

1
Scan for error codes using an OBD-II scanner to confirm the P0700 code and check for any additional transmission-related codes.
2
Inspect the transmission fluid level and condition; look for signs of contamination or burnt smell.
3
Check the wiring and connectors related to the TCM for any signs of damage, corrosion, or loose connections.
4
Test the TCM for proper function using a multimeter to measure voltage and resistance as specified in the service manual.
5
Inspect the vehicle’s speed sensors and transmission range sensor for faults.
6
Perform a visual inspection of the transmission for any external leaks or physical damage.

Solution

1. Preparation

Gather tools: OBD-II scanner, multimeter, socket set, torque wrench, and fluid pump.
Ensure the vehicle is parked on a level surface and the engine is turned off. Disconnect the battery to avoid electrical shorts.

2. Check and Replace Transmission Fluid

Inspect Fluid: Remove the dipstick and check the fluid level and condition.
Fluid Replacement: If the fluid is low or contaminated:
1. Remove the drain plug from the transmission pan and allow old fluid to drain completely.
2. Replace the transmission fluid filter if applicable.
3. Reinstall the drain plug and torque to manufacturer specifications (usually around 20-25 ft-lbs).
4. Fill the transmission with new fluid using a fluid pump, ensuring it meets Toyota specifications (typically ATF WS).

3. Repair or Replace Faulty Components

TCM Replacement: If diagnostics indicate the TCM is faulty:
1. Disconnect the negative battery terminal.
2. Remove the TCM mounting bolts and disconnect the wiring harness.
3. Install the new TCM by reversing the removal steps, ensuring all connections are secure.
Sensor Replacement: If speed sensors or transmission range sensor are faulty:
1. Remove the relevant connectors and bolts.
2. Replace the faulty sensor and reconnect.

4. Clear Codes and Test Drive

Use an OBD-II scanner to clear the P0700 code from the vehicle’s system.
Reconnect the battery and take the vehicle for a test drive to monitor the transmission’s performance and ensure no codes reappear.