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

Solution

1. Preparation

• Gather necessary tools and parts.
• Disconnect the vehicle battery to avoid electrical shorts.
• Ensure the vehicle is on a flat surface and secure it with wheel chocks.

2. Inspect and Replace Transmission Fluid

• Tools Required: Transmission fluid pump, funnel, catch basin.
• Drain the transmission fluid by removing the drain plug. Collect the old fluid in a catch basin.
• Replace the drain plug after draining.
• Using a transmission fluid pump and funnel, refill the transmission with the manufacturer-recommended fluid type until it reaches the specified level.

3. Inspect Wiring and Connections

• Tools Required: Multimeter, wire brush, dielectric grease.
• Visually inspect the wiring harness connected to the TCM. Look for frayed wires or loose connections.
• If any corrosion is found on connectors, clean them with a wire brush and apply dielectric grease to prevent future corrosion.

4. Test and Replace the Transmission Control Module (if necessary)

• Tools Required: Multimeter, socket set.
• Using a multimeter, check the voltage and ground signals on the TCM.
• If the TCM fails the test, remove the faulty module by unscrewing it from its mount and disconnecting the wiring harness.
• Install the new TCM by connecting the wiring harness and securing it with screws.

5. Verify and Clear Codes

• Reconnect the vehicle battery.
• Use an OBD-II scanner to clear the P0700 code and any additional codes.
• Start the vehicle and allow it to reach operating temperature.