how to fix P0700 code in Honda CR-V Sixth Generation (2023-present)

Solution

1. Preparation

• Gather necessary tools and parts.
• Disconnect the negative terminal of the battery to prevent electrical shorts.
• Raise the vehicle securely on jack stands if working underneath.

2. Check and Replace Transmission Fluid

• Tools Required: Transmission fluid pump, catch pan.
• Remove the transmission fluid dipstick and check the fluid level. If low, top off with the manufacturer-recommended transmission fluid.
• If the fluid appears dark or has a burnt smell, drain and replace it:
  1. Place a catch pan under the transmission pan.
  2. Remove the transmission drain plug or pan bolts, allowing fluid to drain completely.
  3. Clean the drain plug and replace it.
  4. Refill the transmission with new fluid through the dipstick tube.

3. Inspect and Repair Wiring/Connectors

• Tools Required: Wire strippers, electrical tape, multimeter.
• Visually inspect the wiring harness and connectors to the TCM:
  1. Repair any damaged wires by crimping or soldering new connectors as needed.
  2. Ensure all connectors are fully seated and free of corrosion.
  3. Use a multimeter to test continuity and resistance in the wiring.

4. Replace the Transmission Control Module (if necessary)

• Tools Required: Socket set, torque wrench.
• If diagnostics indicate a faulty TCM:
  1. Disconnect the battery again before removing the TCM.
  2. Locate the TCM (usually under the hood or behind the center console).
  3. Unplug the electrical connectors.
  4. Remove the mounting bolts and take out the old TCM.
  5. Install the new TCM, ensuring it is properly mounted and connected.
  6. Reconnect the battery.