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

594 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 system malfunction 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.
•Allow the engine to cool before opening the transmission fluid fill plug.

Symptoms

•Check engine light illuminated
•Unusual shifting patterns or delays
•Transmission slipping or failure to engage
•Rough or harsh shifting
•Loss of power during acceleration

Diagnostic Steps

1
Scan for error codes using an OBD-II scanner to identify any additional codes related to the P0700.
2
Inspect the transmission fluid level and condition (check for contamination or burnt smell).
3
Examine the TCM connectors for corrosion or loose connections.
4
Check for any visible damage to the wiring harness leading to the TCM.
5
Test the transmission fluid temperature sensor if applicable.
6
Inspect 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
•Multimeter
•Fluid pump
•Torque wrench
•Wire brush

Parts Required

•Honda ATF DW-1 transmission fluid
•Transmission control solenoids (if needed)
•Transmission control module (if needed)

Related Faults

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Diagnostic Steps

1
Scan for error codes using an OBD-II scanner to identify any additional codes related to the P0700.
2
Inspect the transmission fluid level and condition (check for contamination or burnt smell).
3
Examine the TCM connectors for corrosion or loose connections.
4
Check for any visible damage to the wiring harness leading to the TCM.
5
Test the transmission fluid temperature sensor if applicable.
6
Inspect the transmission control solenoids for proper operation.

Solution

1. Preparation

Gather tools and parts required for the repair.
Ensure the vehicle is on a level surface, and engage the parking brake.
Disconnect the battery to prevent electrical shorts.

2. Transmission Fluid Inspection and Replacement

Tools Required: Socket set, fluid pump, funnel.
Sub-steps:
1. Locate the transmission dipstick (if applicable) or the fill plug.
2. Remove the dipstick or fill plug and check the fluid level.
3. If the fluid is low, add the correct type of transmission fluid (usually Honda ATF DW-1).
4. If the fluid is contaminated or has a burnt smell, drain the old fluid using a fluid pump and replace it with new fluid.
5. Recheck fluid level after adding new fluid.

3. Inspect and Repair TCM Connections

Tools Required: Multimeter, wire brush, dielectric grease.
Sub-steps:
1. Locate the TCM, typically situated near the transmission.
2. Disconnect the TCM connectors and inspect for corrosion or damage.
3. Clean the connectors with a wire brush and apply dielectric grease before reconnecting.
4. Ensure that the connectors are seated properly.

4. Replace Faulty Components

Tools Required: Socket set, torque wrench.
Sub-steps:
1. If any transmission control solenoids or the TCM itself is found to be faulty during diagnostics, remove the necessary components.
2. Install new solenoids or TCM, ensuring correct orientation.
3. Torque all bolts to manufacturer's specifications as per the service manual.

5. Reset the Codes

Tools Required: OBD-II scanner.
Sub-steps:
1. Reconnect the battery.
2. Use the OBD-II scanner to clear the P0700 code and any related codes.
3. Start the vehicle and allow it to reach operating temperature.