how to fix P0700 transmission trouble code on Toyota Camry XV50 (2012-2017)

Solution

1. Preparation

• Gather necessary tools and parts.
• Disconnect the negative battery terminal to prevent electrical shorts.
• Elevate the vehicle using jack stands for better access to the transmission.

2. Transmission Fluid Inspection

• Check Fluid Level: Remove the dipstick and ensure the fluid is at the correct level; add fluid if necessary.
• Inspect Fluid Condition: If the fluid is dark or has a burnt smell, perform a fluid change.

3. Wiring and Connector Inspection

• Visual Inspection: Examine the wiring harness and connectors for frays, breaks, or corrosion.
• Repair or Replace: Repair any damaged wiring or replace corroded connectors as needed.

4. Transmission Control Module (TCM) Testing

• Access TCM: Remove any necessary panels to access the TCM.
• Test with Multimeter: Use a multimeter to check for proper voltage and ground at the TCM connectors. Refer to the vehicle's service manual for specific voltage readings.
• Replace TCM: If the TCM is determined to be faulty, replace it with a new unit.

5. Transmission Fluid Temperature Sensor Inspection

• Locate Sensor: Find the transmission fluid temperature sensor (usually near the transmission pan).
• Test Sensor: Use a multimeter to measure resistance and verify against specifications. Replace if faulty.

6. Reassemble and Refill

• Reconnect any disconnected components, ensuring all connections are secure.
• Refill the transmission with the correct type and amount of fluid, as specified in the owner’s manual.