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

Toyota Corolla E170 (2013-2019)

Error Codes

1-2 hours

Time

medium

Difficulty

medium

Severity

3 min read

542 words

Problem Statement

Learn how to diagnose and fix the remote start issue in your 2013-2019 Toyota Corolla E170. Step-by-step guide with diagnostic procedures and repair instructions.

Affected Component

Electrical

Estimated Time

1-2 hours

⚠️ Safety Warnings

Important safety information - read before proceeding

•Disconnect the battery before working on electrical systems to avoid shorts.
•Ensure the vehicle is in a secure location where it won’t roll or move unintentionally.

Symptoms

•Remote start button does not respond when pressed
•Engine does not start or crank when attempting remote start
•Dashboard lights may flash briefly without engine ignition
•Key fob battery appears functional but remote start feature still fails
•No error messages or warnings on the dashboard

Diagnostic Steps

1
Check the battery in the key fob for proper voltage and replace if necessary.
2
Verify that the vehicle is in 'Park' and all doors are properly closed.
3
Inspect the remote start system for any visible wiring issues or loose connections.
4
Scan for any trouble codes using an OBD-II scanner to identify potential electronic issues.
5
Test the vehicle’s factory alarms or immobilizer system to ensure they are functioning correctly.
6
Confirm that the remote start feature is enabled in the vehicle’s settings, if applicable.

Solution

💡 Expert Tip

For complex repairs like this, consider taking photos at each step. This helps if you need to reverse a step or consult with a mechanic. Also, keep all removed parts organized - you may need to reference them during reassembly.

Verification

After completing the repair, verify that the issue has been resolved:

✓Test the affected component to ensure it functions correctly
✓Check for any error codes or warning lights
✓Monitor the vehicle for a few days to ensure the issue does not recur

Prevention Tips

To prevent this issue from occurring again:

•Follow the manufacturer's recommended maintenance schedule
•Address warning signs early before they develop into major issues
•Use quality parts and fluids recommended for your vehicle
•Keep detailed records of all repairs and maintenance

Tools & Equipment Required

•OBD-II scanner
•Multimeter
•Small flathead screwdriver

Parts Required

•Key fob battery (CR2032)

Related Faults

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Diagnostic Steps

1
Check the battery in the key fob for proper voltage and replace if necessary.
2
Verify that the vehicle is in 'Park' and all doors are properly closed.
3
Inspect the remote start system for any visible wiring issues or loose connections.
4
Scan for any trouble codes using an OBD-II scanner to identify potential electronic issues.
5
Test the vehicle’s factory alarms or immobilizer system to ensure they are functioning correctly.
6
Confirm that the remote start feature is enabled in the vehicle’s settings, if applicable.

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.