how to fix P0700 code on my Toyota Camry Seventh Generation (2012-2017)

Solution

1. Preparation

• Gather tools and parts.
• Disconnect the negative battery terminal to prevent electrical shorts.
• Ensure the vehicle is on a level surface, and use wheel chocks for safety.

2. Check and Replace Transmission Fluid

• Tools Required: Transmission fluid pump, socket set, fluid catch pan.
• Remove the transmission fluid drain plug and allow fluid to drain completely.
• Inspect the old fluid for color and debris; if it appears burnt, a full fluid change may be necessary.
• Replace the drain plug with a new washer and torque to manufacturer specifications.
• Refill with the recommended transmission fluid type as per the owner’s manual using a fluid pump.

3. Inspect and Repair Wiring/Connections

• Tools Required: Multimeter, wire brush, electrical cleaner.
• Visually inspect the wiring harness connected to the TCM for any wear, frays, or corrosion.
• Use the multimeter to test continuity and resistance in the wires; repair or replace damaged wiring as necessary.
• Clean any corrosion from connectors with electrical cleaner and ensure a secure fit.

4. Replace Transmission Control Module (if necessary)

• Tools Required: Socket set, torque wrench.
• Locate the TCM; it is typically found near the transmission or under the dashboard.
• Disconnect the electrical connectors and remove the mounting bolts to take out the old TCM.
• Install the new TCM by securing it with mounting bolts and reconnecting the electrical connectors.
• Torque bolts to manufacturer specifications.

5. Clear Codes and Test Drive

• Tools Required: OBD-II scanner.
• Reconnect the negative battery terminal.
• Use the OBD-II scanner to clear the P0700 code and any additional codes retrieved.
• Take the vehicle for a test drive to ensure proper shifting and operation of the transmission.