how to fix P0700 code in Honda CR-V Fifth Generation (2017-2022)

Solution

1. Preparation

• Gather tools and parts needed.
• Disconnect the negative battery terminal to ensure safety.

Tools Required:

• OBD-II scanner
• Socket set
• Multimeter
• Transmission fluid pump (if necessary)
• Torque wrench

2. Inspect and Replace Transmission Fluid

• Check the transmission fluid level using the dipstick (if equipped) and add fluid as necessary.
• If fluid is burnt or contaminated, drain the old fluid using a fluid pump.
• Replace with manufacturer-approved transmission fluid (e.g., Honda ATF DW-1).
• Refill the transmission fluid and check the level again.

3. Inspect Wiring and Connectors

• Locate the transmission control module (usually near the transmission).
• Visually inspect the wiring harness and connectors for any signs of wear, damage, or corrosion.
• Repair or replace any damaged wiring or connectors as needed.

4. Test Transmission Control Module

• Reconnect the battery terminal.
• Use the OBD-II scanner to clear the P0700 code and any additional codes.
• Perform a road test to see if the code reappears.
• If the code returns, the transmission control module may need replacement.

5. Replace Transmission Control Module (if necessary)

• Disconnect the battery again before proceeding.
• Remove any covers or shields to access the transmission control module.
• Disconnect the wiring harness from the module and remove it from its mount.
• Install the new transmission control module in reverse order and reconnect the wiring harness.
• Reconnect the battery and clear any codes again.