how to fix P0700 transmission code in Honda Accord 9th Generation (2013-2017)

Honda Accord Eleventh Generation (2023-present)

Error Codes

3-5 hours

Time

medium

Difficulty

high

Severity

Error Code: P0700

3 min read

592 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 Honda Accord 9th Generation (2013-2017). Step-by-step guide with symptoms and solutions.

Error Code

P0700

Affected Component

Transmission

Estimated Time

3-5 hours

⚠️ Safety Warnings

Important safety information - read before proceeding

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

Symptoms

•Check engine light illuminated
•Erratic shifting or delayed engagement
•Transmission slipping or poor acceleration
•Reduced power or performance while driving
•Transmission overheating
•Unusual noises from the transmission

Diagnostic Steps

1
Scan for error codes using an OBD-II scanner to identify specific transmission-related codes.
2
Inspect transmission fluid level and condition; low or dirty fluid can cause transmission issues.
3
Check the wiring and connectors related to the Transmission Control Module (TCM) for damage or corrosion.
4
Inspect the transmission fluid temperature sensor and other relevant sensors for proper function.
5
Conduct a road test to replicate symptoms and note any other codes that may appear.
6
Examine the transmission control solenoids for proper operation.

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
•Socket set
•Torque wrench
•Multimeter
•Fluid pump
•Jack and jack stands

Parts Required

•Honda ATF DW-1 transmission fluid
•Transmission fluid temperature sensor (if faulty)
•Transmission control solenoids (if faulty)
•Transmission pan gasket

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Diagnostic Steps

1
Scan for error codes using an OBD-II scanner to identify specific transmission-related codes.
2
Inspect transmission fluid level and condition; low or dirty fluid can cause transmission issues.
3
Check the wiring and connectors related to the Transmission Control Module (TCM) for damage or corrosion.
4
Inspect the transmission fluid temperature sensor and other relevant sensors for proper function.
5
Conduct a road test to replicate symptoms and note any other codes that may appear.
6
Examine the transmission control solenoids for proper operation.

Solution

1. Preparation

Gather necessary tools and parts.
Disconnect the negative battery terminal to ensure safety.
Raise the vehicle using a jack and secure it with jack stands.

2. Check and Replace Transmission Fluid

Sub-steps:
1. Locate the transmission dipstick or fill plug and remove it.
2. Use a fluid pump to extract old transmission fluid from the transmission pan.
3. Inspect the fluid; it should be bright red and free of debris. If it is dark or has a burnt smell, replace it.
4. Refill with Honda ATF DW-1 transmission fluid using a funnel until it reaches the proper level.

3. Inspect and Replace Faulty Sensors

Sub-steps:
1. Locate the transmission fluid temperature sensor and disconnect the wiring harness.
2. Remove the sensor using a socket wrench.
3. Install the new sensor, tightening it to the manufacturer's torque specification (typically around 8-10 Nm).
4. Reconnect the wiring harness.

4. Repair or Replace Wiring and Connectors

Sub-steps:
1. Visually inspect the wiring harness for fraying, corrosion, or damage.
2. Repair any damaged wiring with electrical tape or replace the entire harness if necessary.
3. Ensure all connectors are clean and securely fastened.

5. Test Transmission Control Solenoids

Sub-steps:
1. Remove the transmission pan to access the solenoids (may require draining fluid).
2. Disconnect the electrical connectors from the solenoids.
3. Use a multimeter to test each solenoid according to manufacturer specifications (usually between 20-30 ohms).
4. Replace any faulty solenoids and reassemble the transmission pan with a new gasket.