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

Solution

1. Preparation

• Gather tools and parts needed for the repair.
• Disconnect the negative battery terminal to ensure safety.
• Required tools: OBD-II scanner, multimeter, socket set, torque wrench.

2. Inspect and Replace Transmission Fluid

1. Check Fluid Level:
   • With the engine running, check the transmission dipstick to ensure the fluid is at the correct level.
2. Change Fluid:
   • If the fluid is low or contaminated, drain the old fluid using a fluid pump.
   • Replace with Honda ATF DW-1 transmission fluid (consult the owner’s manual for the exact quantity).
   • Recheck fluid level after replacement.

3. Inspect Wiring and Connectors

1. Visual Inspection:
   • Check all wiring harnesses and connectors related to the TCM for any signs of corrosion, damage, or disconnections.
2. Repair or Replace:
   • Repair any damaged wiring or connectors as necessary, ensuring a secure fit.

4. Test Transmission Control Module (TCM)

1. Power Check:
   • Use a multimeter to check if the TCM is receiving adequate voltage.
   • Compare readings with the specifications found in the service manual.
2. Replacement:
   • If the TCM is faulty, carefully remove it (usually involves unbolting and disconnecting).
   • Replace it with a new or remanufactured TCM, ensuring all connectors are securely fastened.

5. Clear Codes and Test Drive

1. Reset the System:
   • Use the OBD-II scanner to clear the P0700 code from the system.
2. Test Drive:
   • Take the vehicle for a test drive to ensure that the transmission operates smoothly and that the check engine light does not reappear.