my Toyota Corolla E170 (2013-2019) remote start not working what should I do

Solution

1. Preparation

• Gather necessary tools: OBD-II scanner, multimeter, and a new key fob battery if needed.
• Ensure the vehicle is parked in a safe, ventilated area.
• Disconnect the vehicle battery to prevent electrical shorts while inspecting.

2. Key Fob Battery Replacement

• Sub-steps:
  1. Open the key fob using a small flathead screwdriver.
  2. Remove the old battery and replace it with a new CR2032 battery, ensuring correct polarity.
  3. Reassemble the key fob securely.

3. Inspect Remote Start Wiring

• Sub-steps:
  1. Remove the dashboard cover or access panel to locate the remote start module.
  2. Check all wiring connections for any signs of damage or corrosion.
  3. Secure any loose connections and replace damaged wires as necessary.

4. Testing the Remote Start System

• Sub-steps:
  1. Reconnect the vehicle battery.
  2. Attempt to use the remote start feature again.
  3. If it fails, connect the OBD-II scanner to the vehicle and check for any error codes that may indicate an issue with the remote start system.

5. Reprogram the Remote Start System (if applicable)

• Sub-steps:
  1. Follow the specific reprogramming instructions in the owner’s manual or service manual for the remote start system.
  2. Typically involves turning the ignition on and off in a specified sequence while pressing the remote start button.
  3. Confirm successful reprogramming by testing the remote start function.