how to fix P0700 code in Toyota RAV4 Fifth Generation (2019-present)

Solution

1. Preparation

• Gather tools and parts needed for the repair.
• Disconnect the battery to ensure safety while working on electrical components.

Tools Required:

• OBD-II scanner
• Multimeter
• Socket set
• Torque wrench
• Screwdrivers

2. Address Transmission Fluid Issues

• Check Fluid Level:

  • Locate the transmission dipstick; remove and wipe clean.
  • Reinsert and check the fluid level, adding fluid if necessary.

• Change Fluid if Contaminated:

  • Drain the old fluid by removing the drain plug or pan.
  • Replace the transmission filter if applicable.
  • Refill with the manufacturer-recommended transmission fluid (Toyota Type T-IV or equivalent).

3. Inspect and Repair Wiring

• Examine TCM Wiring:
  • Following the wiring harness from the TCM, look for frayed wires or poor connections.
  • Repair or replace any damaged wiring as needed.

4. Check and Replace TCM (if necessary)

• Remove TCM:

  • Locate the TCM, typically found near the transmission.
  • Unplug the electrical connectors from the TCM.
  • Remove mounting bolts using a socket set.

• Install New TCM:

  • Position the new TCM in place.
  • Secure it with bolts and reconnect the electrical connectors.

5. Reconnect Battery and Clear Codes

• Reconnect the battery.
• Use the OBD-II scanner to clear all trouble codes.
• Start the vehicle and check for any new codes or warning lights.