how to fix P0700 code in Toyota Corolla E140 (2006-2013)

Solution

1. Preparation

• Gather all necessary tools and materials.
• Disconnect the battery to ensure safety during the repair process.

Tools Required:

• OBD-II scanner
• Socket set
• Torque wrench
• Screwdrivers
• Multimeter
• Transmission fluid (as specified in the owner's manual)

2. Replace Faulty Transmission Control Module (if necessary)

1. Locate the TCM: Refer to the repair manual for the exact location of the TCM in your vehicle.
2. Remove the TCM:
   • Unplug the electrical connectors carefully.
   • Remove the mounting bolts using the socket set.
   • Take out the TCM from its bracket.
3. Install the New TCM:
   • Position the new TCM in place and secure it with mounting bolts.
   • Reconnect the electrical connectors, ensuring a snug fit.

3. Change Transmission Fluid and Filter

1. Drain Transmission Fluid:
   • Remove the drain plug using the socket set and allow the fluid to drain into a suitable container.
2. Replace the Transmission Filter:
   • Remove the transmission pan by unscrewing the bolts.
   • Take out the old filter and replace it with a new one.
   • Clean the transmission pan and magnet to remove any debris.
3. Refill with New Fluid:
   • Reattach the transmission pan and torque the bolts to the manufacturer's specifications.
   • Refill the transmission with new fluid through the dipstick tube as per the manufacturer’s recommendations.

4. Clear Codes and Test

1. Reconnect Battery: Reattach the battery terminals.
2. Clear the DTCs: Use the OBD-II scanner to clear the P0700 code.
3. 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.