what does the P0700 code mean for my Toyota Corolla E170 (2013-2019)?

Solution

1. Preparation

• Gather tools and parts necessary for the repair.
• Disconnect the negative battery terminal to ensure safety while working on electrical systems.

2. Fluid Inspection and Replacement

• Tools Required: Transmission fluid pump, socket set, torque wrench.
• Check the transmission fluid level using the dipstick.
• If fluid is low, top it up with the manufacturer's recommended transmission fluid type. If fluid is burnt or dirty:
  • Drain the old transmission fluid using a fluid pump.
  • Replace with new transmission fluid according to the manufacturer’s specifications.
  • Torque the transmission fluid pan bolts to the manufacturer’s recommended settings.

3. Wiring and Connector Inspection

• Tools Required: Multimeter, wiring diagram.
• Inspect the wiring and connectors for any signs of damage or corrosion.
• Use a multimeter to check for proper voltage and continuity at the TCM connectors.
• Repair or replace any damaged wires or connectors as necessary.

4. TCM Testing and Replacement

• Tools Required: OBD-II scanner.
• If the TCM is suspected to be faulty, test it using an OBD-II scanner for any specific codes.
• If required, replace the TCM:
  • Remove the TCM from its mounting location.
  • Disconnect the wiring harness and remove any screws or bolts.
  • Install the new TCM by reversing the disassembly process.
  • Reconnect the wiring harness and ensure it is secured properly.

5. Reconnect Battery and Clear Codes

• Reconnect the negative battery terminal.
• Use the OBD-II scanner to clear any stored trouble codes in the ECM.