how to troubleshoot the remote start not working in my Toyota RAV4 Fourth Generation (2013-2018)

Toyota RAV4 Fourth Generation (2013-2018)

Error Codes

1-2 hours

Time

medium

Difficulty

medium

Severity

3 min read

529 words

Problem Statement

Learn how to troubleshoot and fix the remote start issue in your Toyota RAV4 (2013-2018). Step-by-step guide with diagnostic steps 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 to avoid shocks or shorts.

Symptoms

•Remote start button does not respond when pressed
•No engine start or turnover when attempting to use remote start
•Security or engine warning lights illuminated on the dashboard
•Key fob battery appears low or dead
•Remote start feature works intermittently
•Other remote functions (lock/unlock) work properly

Diagnostic Steps

1
Check the key fob battery and replace if low or dead.
2
Verify that the vehicle is in a secure state (e.g., doors closed, hood closed).
3
Scan the vehicle's onboard computer for error codes using an OBD-II scanner.
4
Inspect the remote start module for any visible damage or loose connections.
5
Confirm that the remote start system is correctly programmed and compatible with the vehicle.
6
Test the remote start function with a spare 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
•Small flathead screwdriver
•Socket set
•Multimeter

Parts Required

•CR2032 battery (for key fob)
•Replacement remote start module (if damaged)

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Symptoms

•Remote start button does not respond when pressed

•No engine start or turnover when attempting to use remote start

•Security or engine warning lights illuminated on the dashboard

•Key fob battery appears low or dead

•Remote start feature works intermittently

•Other remote functions (lock/unlock) work properly

Diagnostic Steps

1
Check the key fob battery and replace if low or dead.
2
Verify that the vehicle is in a secure state (e.g., doors closed, hood closed).
3
Scan the vehicle's onboard computer for error codes using an OBD-II scanner.
4
Inspect the remote start module for any visible damage or loose connections.
5
Confirm that the remote start system is correctly programmed and compatible with the vehicle.
6
Test the remote start function with a spare key fob if available.

Solution

1. Preparation

Gather necessary tools and parts.
Disconnect the vehicle battery to prevent electrical shorts during repair.
Ensure the vehicle is parked in a well-ventilated area.

2. Replace Key Fob Battery

Sub-steps:
1. Use a small flathead screwdriver to gently pry open the key fob case.
2. Remove the old battery (usually a CR2032) and replace it with a new one, ensuring the polarity is correct.
3. Snap the key fob back together securely.
Tools Required: Small flathead screwdriver

3. Inspect and Secure Remote Start Module

Sub-steps:
1. Locate the remote start module (often found under the dashboard or near the fuse box).
2. Check for any loose wires or connections and secure them as necessary.
3. Inspect the module for signs of damage or corrosion and replace if necessary.
Tools Required: Socket set, multimeter

4. Reprogram Remote Start System

Sub-steps:
1. Refer to the vehicle's owner's manual for specific reprogramming instructions for the remote start system.
2. Follow the steps to put the vehicle in programming mode, usually involving turning the ignition on and off in a specific sequence.
3. Test the remote start function again after programming.
Tools Required: None specifically, but the owner's manual will be needed.