how to fix P0700 code in Honda Civic 9th Generation (2012-2015)

Honda Civic 10th Generation (2016-2021)

Error Codes

2-4 hours

Time

medium

Difficulty

high

Severity

Error Code: P0700

3 min read

591 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 control issues in Honda Civic 2012-2015. 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 shock.
•Allow the engine and transmission to cool before handling components to avoid burns.

Symptoms

•Check engine light illuminated
•Harsh or erratic shifting
•Slipping transmission
•Decreased fuel efficiency
•Transmission stuck in a single gear

Diagnostic Steps

1
Scan the vehicle using an OBD-II scanner to retrieve additional trouble codes related to the P0700.
2
Inspect the transmission fluid level and condition (look for discoloration or burnt smell).
3
Check the wiring and connectors to the transmission control module for any signs of damage or corrosion.
4
Test the transmission fluid temperature sensor using a multimeter to ensure it operates within specifications.
5
Verify that the battery voltage is within the normal range (12.4 to 14.7 volts) during engine operation.
6
Inspect for any signs of mechanical failure in the transmission components.

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
•Multimeter
•Screwdrivers
•Torque wrench
•Fluid transfer pump

Parts Required

•Honda ATF DW-1 transmission fluid
•Transmission Control Module (if replacement is necessary)
•Transmission fluid drain plug gasket (if applicable)

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Diagnostic Steps

1
Scan the vehicle using an OBD-II scanner to retrieve additional trouble codes related to the P0700.
2
Inspect the transmission fluid level and condition (look for discoloration or burnt smell).
3
Check the wiring and connectors to the transmission control module for any signs of damage or corrosion.
4
Test the transmission fluid temperature sensor using a multimeter to ensure it operates within specifications.
5
Verify that the battery voltage is within the normal range (12.4 to 14.7 volts) during engine operation.
6
Inspect for any signs of mechanical failure in the transmission components.

Solution

1. Preparation

Gather all necessary tools and parts.
Ensure the vehicle is parked on a level surface and the engine is off.
Disconnect the negative terminal of the battery.

2. Transmission Fluid Change

Sub-steps:
1. Remove the transmission drain plug and allow the old fluid to drain completely into a suitable container.
2. Replace the drain plug and torque to the manufacturer’s specification (usually around 30 ft-lbs).
3. Refill the transmission with the appropriate type of fluid (typically Honda ATF DW-1) through the dipstick tube.
4. Start the engine and let it idle, shifting through all gears to circulate the new fluid.
5. Recheck the fluid level and add more if necessary.

3. Inspect and Repair Wiring/Connectors

Sub-steps:
1. Visually inspect the wiring harness connected to the TCM and transmission for any frays or shorts.
2. Use a multimeter to test for continuity in the wiring.
3. Repair or replace any damaged wires or connectors as needed.

4. Replace Transmission Control Module (if necessary)

Sub-steps:
1. Locate the TCM, typically found near the transmission or under the dashboard.
2. Disconnect the electrical connectors from the TCM.
3. Remove the mounting bolts and take out the faulty TCM.
4. Install the new TCM by reversing the removal steps.
5. Reconnect all connectors and ensure they are secure.

5. Reset the Check Engine Light

Sub-steps:
1. Reconnect the negative battery terminal.
2. Use the OBD-II scanner to clear the P0700 code and any other related codes from the system.

Tools Required:

OBD-II scanner
Socket set
Multimeter
Screwdrivers
Torque wrench
Fluid transfer pump

Parts Required:

Honda ATF DW-1 transmission fluid
Transmission Control Module (if replacement is necessary)
Transmission fluid drain plug gasket (if applicable)

Estimated Repair Time: 2-4 hours

Safety Warnings:

Disconnect the battery before working on electrical systems to prevent shock.
Allow the engine and transmission to cool before handling components to avoid burns.