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Home/Cars/Honda/Civic/9th Generation (2012-2015)/how to diagnose P0700 code on my Honda Civic 9th Generation (2012-2015)

how to diagnose P0700 code on my Honda Civic 9th Generation (2012-2015)

Honda Civic 9th Generation (2012-2015)

Severity: highDifficulty: mediumError Code: P07002-4 hours
3 min read
528 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 9th Generation. Step-by-step guide with diagnostic procedures and repair instructions.

Error Code
P0700
Component
Transmission
Repair Time
2-4 hours

Safety Warnings

  • ⚠Disconnect the battery before working on electrical systems.
  • ⚠Allow the transmission to cool before opening any components to prevent burns.

Symptoms

  • •Check engine light illuminated
  • •Erratic shifting or transmission hesitation
  • •Transmission slipping or failure to engage
  • •Poor acceleration or loss of power
  • •Decreased fuel efficiency

Diagnostic Steps

  1. 1Scan the vehicle's onboard diagnostics (OBD-II) system with a scanner to confirm the P0700 code and check for any additional transmission-related codes.
  2. 2Inspect the transmission fluid level and condition; ensure it is at the appropriate level and not burnt or contaminated.
  3. 3Examine electrical connections to the transmission control module (TCM) for corrosion, damage, or loose connections.
  4. 4Check the wiring harness for any signs of wear, fraying, or short circuits that could affect transmission operation.
  5. 5Test the TCM using a multimeter to ensure it is receiving the correct voltage and signals.
  6. 6Perform a visual inspection of the transmission for leaks or physical damage that might affect performance.

Solution

Solution

1. Preparation

  • Gather tools and parts required for the repair.
  • Disconnect the negative battery cable to ensure safety.
  • Gather the necessary diagnostic tools: OBD-II scanner, multimeter, socket set, and torque wrench.

2. Inspect and Replace Transmission Fluid

  • Tools Required: Fluid pump, drain pan, funnel.
  • Drain the old transmission fluid by removing the pan or drain plug.
  • Replace with the recommended transmission fluid type (consult the owner's manual).
  • Reinstall the drain plug or pan and torque to specifications (usually around 10-15 ft-lbs).

3. Repair Electrical Connections

  • Tools Required: Wire strippers, electrical tape, connector cleaner.
  • Clean the connectors to the TCM with connector cleaner.
  • Repair any damaged wiring by cutting back to undamaged wire, stripping, and reconnecting securely.
  • Ensure all connections are tight and secure.

4. Test TCM Functionality

  • Tools Required: Multimeter.
  • Reconnect the battery and use a multimeter to test the voltage at the TCM.
  • If voltage is correct but the code persists, consider replacing the TCM.

5. Clear Codes and Test Drive

  • Tools Required: OBD-II scanner.
  • Clear the P0700 code using the OBD-II scanner.
  • Test drive the vehicle to check for any reoccurrence of the code and observe transmission performance.

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
  • Drain pan

Parts Required

  • Transmission fluid
  • Transmission filter (if applicable)
  • TCM (if replacement is necessary)

Additional Information

Error CodeP0700
Component

Transmission

Repair Time

2-4 hours

Difficulty

medium

Severity

high

Tools

6 items

Parts

3 items

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