how do I fix P0700 transmission code on my Toyota Camry Seventh Generation (2012-2017)

Solution

1. Preparation

• Gather tools and materials.
• Ensure the vehicle is parked on a level surface and the engine is cool.
• Disconnect the negative battery terminal to prevent electrical shorts.

2. Transmission Fluid Inspection

• Tools Required: Fluid extraction pump, funnel, transmission fluid dipstick.
• Sub-steps:
  1. Remove the transmission dipstick and wipe it clean.
  2. Insert it back and remove it again to check the fluid level.
  3. If low, add the correct type of transmission fluid (Toyota ATF WS) as needed.
  4. Inspect fluid condition; if burnt or contaminated, proceed to fluid replacement.

3. Replace Transmission Fluid (if necessary)

• Tools Required: Socket set, fluid catch pan, funnel, transmission fluid.
• Sub-steps:
  1. Remove the transmission drain plug and allow old fluid to drain completely.
  2. Replace the drain plug and torque it to the manufacturer’s specifications (typically around 30 Nm).
  3. Fill the transmission with the correct type of fluid using a funnel.
  4. Start the engine and cycle through the gears, checking the fluid level again and adding as necessary.

4. Inspect and Repair Wiring

• Tools Required: Multimeter, wire strippers, electrical tape.
• Sub-steps:
  1. Inspect all wiring harnesses connected to the TCM for damage or corrosion.
  2. Use a multimeter to check for continuity and voltage supplied to the TCM.
  3. Repair any damaged wires using wire strippers and electrical tape.

5. Replace Transmission Control Module (if faulty)

• Tools Required: Socket set, screwdriver set.
• Sub-steps:
  1. Locate the TCM (typically near the battery or in the cabin under the dashboard).
  2. Disconnect the wiring connectors.
  3. Remove the TCM mounting screws and carefully take it out.
  4. Install the new TCM, securing it with screws, and reconnect all wiring.

6. Reconnect Battery

• Reconnect the negative battery terminal securely.