how to fix my Toyota Corolla E170 (2013-2019) remote start not working?

Toyota Corolla E170 (2013-2019)

Error Codes

1-2 hours

Time

medium

Difficulty

medium

Severity

3 min read

529 words

Problem Statement

Learn how to diagnose and fix remote start issues in 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 components to avoid short circuits.

Symptoms

•Remote start button does not respond when pressed
•Vehicle does not start or crank when attempting remote start
•No audible confirmation (horn honk) when remote start is attempted
•Check engine light may be illuminated
•Key fob battery low or dead warning may appear

Diagnostic Steps

1
Check the key fob battery and replace it if low or dead.
2
Verify that the vehicle is in a secure location and not in gear (automatic transmission must be in park).
3
Inspect the vehicle’s security system for any fault indications.
4
Scan the vehicle's OBD-II system for any error codes related to the remote start feature.
5
Ensure that all doors, hood, and trunk are closed securely as the remote start will not activate if any are open.
6
Test the remote start feature using a different key fob if available.

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 screwdriver
•Replacement key fob battery (CR2032 or as applicable)

Parts Required

•Key fob battery (if needed)
•Any damaged wiring or connectors (if applicable)

Related Faults

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Diagnostic Steps

1
Check the key fob battery and replace it if low or dead.
2
Verify that the vehicle is in a secure location and not in gear (automatic transmission must be in park).
3
Inspect the vehicle’s security system for any fault indications.
4
Scan the vehicle's OBD-II system for any error codes related to the remote start feature.
5
Ensure that all doors, hood, and trunk are closed securely as the remote start will not activate if any are open.
6
Test the remote start feature using a different key fob if available.

Solution

1. Preparation

Gather the necessary tools: OBD-II scanner, multimeter, and replacement key fob battery.
Ensure the vehicle is parked on a flat surface and the engine is off.
Disconnect the negative battery terminal for safety.

2. Replace Key Fob Battery

Use a small screwdriver to gently pry open the key fob.
Remove the old battery and replace it with a new CR2032 battery (or appropriate type for your model).
Reassemble the key fob and test the remote start function.

3. Check Security System

Reconnect the negative battery terminal.
Turn the ignition to the "ON" position without starting the engine.
Observe the dashboard for any security system warnings or indicators.
If there are warnings, consult the owner's manual for troubleshooting specific to the security system.

4. Clear Diagnostic Codes

Connect the OBD-II scanner to the vehicle's diagnostic port.
Turn the ignition to the "ON" position and follow the scanner's instructions to read and clear any error codes.
Once cleared, test the remote start function again.

5. Inspect Wiring and Connections

If the remote start still does not work, visually inspect the wiring related to the remote start system.
Look for any loose connections, frayed wires, or corrosion.
Repair or replace any damaged wiring as necessary.