why does my Toyota Corolla E170 (2013-2019) remote start not work

Toyota Corolla E170 (2013-2019)

Error Codes

1-2 hours

Time

medium

Difficulty

high

Severity

3 min read

558 words

⚠️ Safety Warning

This issue requires immediate attention. If you are not experienced with automotive repairs, consult a professional mechanic. Working on critical systems can be dangerous.

Problem Statement

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

Affected Component

Electrical

Estimated Time

1-2 hours

⚠️ Safety Warnings

Important safety information - read before proceeding

•Disconnect the battery before working on electrical components if necessary.
•Ensure the vehicle is in a safe location and cannot roll during inspection.

Symptoms

•Remote start button does not respond
•Engine does not crank or start
•Security light flashing on the dashboard
•No audible confirmation (horn honks or lights flashing)
•Key fob battery is low or dead
•Interior lights do not activate when attempting to remote start

Diagnostic Steps

1
Check the battery condition of the key fob using a multimeter or by replacing it with a new battery.
2
Verify that the vehicle is in a secure location and not in gear.
3
Inspect the vehicle's hood switch to ensure it is functioning and not stuck in the open position.
4
Scan the vehicle's onboard diagnostics (OBD-II) for any trouble codes related to the remote start system.
5
Confirm that all doors are closed and the vehicle is properly locked.
6
Check for any blown fuses in the fuse box related to the remote start system.

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
•Basic hand tools

Parts Required

•CR2032 key fob battery
•Hood switch (if defective)
•Replacement fuse (if blown)

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Diagnostic Steps

1
Check the battery condition of the key fob using a multimeter or by replacing it with a new battery.
2
Verify that the vehicle is in a secure location and not in gear.
3
Inspect the vehicle's hood switch to ensure it is functioning and not stuck in the open position.
4
Scan the vehicle's onboard diagnostics (OBD-II) for any trouble codes related to the remote start system.
5
Confirm that all doors are closed and the vehicle is properly locked.
6
Check for any blown fuses in the fuse box related to the remote start system.

Solution

1. Preparation

Gather necessary tools: OBD-II scanner, multimeter, replacement key fob battery, and basic hand tools.
Ensure the vehicle is parked safely and the ignition is off.

2. Replace Key Fob Battery

Sub-steps:
1. Open the key fob using a small flathead screwdriver.
2. Remove the old battery and insert a new CR2032 battery, ensuring correct polarity.
3. Reassemble the key fob and test the remote start function.

3. Inspect Hood Switch

Sub-steps:
1. Locate the hood switch, typically mounted near the hood latch.
2. Manually press the switch to ensure it clicks and returns to its original position.
3. Use a multimeter to test for continuity; if defective, replace the switch.

4. Check Fuses

Sub-steps:
1. Locate the fuse box under the dashboard and/or hood.
2. Identify the remote start-related fuse using the fuse diagram.
3. Remove the fuse and inspect it; replace if blown.

5. Reprogram Key Fob (if necessary)

Sub-steps:
1. Sit in the vehicle and close all doors.
2. Insert the key into the ignition and turn it to the "ON" position without starting the engine.
3. Press the lock button on the key fob for approximately 5 seconds, then turn the key back to the "OFF" position and remove it.
4. Test the remote start feature again.