Toyota Highlander Third Generation (2014-2019) won't start just clicks what should I do

Toyota Highlander Third Generation (2014-2019)

Error Codes

2-4 hours

Time

medium

Difficulty

high

Severity

3 min read

573 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 no-start issue in Toyota Highlander (2014-2019). Step-by-step guide with symptoms, diagnostic steps, and repair instructions.

Affected Component

Electrical

Estimated Time

2-4 hours

⚠️ Safety Warnings

Important safety information - read before proceeding

•Disconnect the battery before working on electrical systems.
•Use caution when working under the vehicle with jack stands.

Symptoms

•Clicking sound when attempting to start the engine
•No engine turnover or cranking
•Dashboard lights dimming or flickering
•Battery warning light illuminated
•Possible electrical accessories not functioning properly

Diagnostic Steps

1
Check the battery voltage using a multimeter to ensure it is above 12.4 volts.
2
Inspect battery terminals for corrosion or loose connections.
3
Test the starter relay by swapping it with a similar relay from another circuit.
4
Measure the voltage at the starter solenoid when attempting to start the vehicle.
5
Inspect the ignition switch by checking for continuity in the start position.
6
Verify the condition of the battery by performing a load test.

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

•Multimeter
•Wrench set
•Socket set
•Wire brush
•Jack and jack stands

Parts Required

•New battery (if necessary)
•Starter relay (if faulty)
•New starter (if required)

Related Faults

Share this solution

Comments

No comments yet

Be the first to share your thoughts

Back to Generation

Diagnostic Steps

1
Check the battery voltage using a multimeter to ensure it is above 12.4 volts.
2
Inspect battery terminals for corrosion or loose connections.
3
Test the starter relay by swapping it with a similar relay from another circuit.
4
Measure the voltage at the starter solenoid when attempting to start the vehicle.
5
Inspect the ignition switch by checking for continuity in the start position.
6
Verify the condition of the battery by performing a load test.

Solution

1. Preparation

Gather all necessary tools and parts.
Ensure the vehicle is in park (or neutral for manual transmissions) and the parking brake is engaged.

2. Battery Inspection and Replacement

Inspect Battery Terminals:
- Disconnect the negative battery terminal using a wrench.
- Clean any corrosion from the terminals with a wire brush.
- Reconnect the terminal securely and repeat for the positive terminal.
Replace the Battery (if necessary):
- If the battery voltage is low or it fails the load test, remove it.
- Use a socket set to remove the battery hold-down clamp.
- Install the new battery, ensuring correct polarity, and secure it with the hold-down clamp.

3. Starter Relay and Solenoid Check

Starter Relay:
- Locate the starter relay in the fuse box.
- Remove the relay and visually inspect it for damage.
- Swap it with a similar relay to test functionality.
Starter Solenoid:
- Use a wrench to remove wiring from the starter solenoid.
- Measure the voltage at the solenoid using a multimeter during the start attempt.
- If no voltage is present, further investigate the ignition switch or wiring.

4. Starter Replacement (if necessary)

Remove Starter:
- Disconnect the negative battery terminal.
- Raise the vehicle and secure with jack stands.
- Disconnect wiring from the starter motor.
- Remove mounting bolts using a socket set and carefully take the starter out.
Install New Starter:
- Position the new starter in place and secure it with the mounting bolts to the specified torque value (typically 15-25 ft-lbs).
- Reconnect the wiring to the starter motor.

5. Final Steps

Reconnect the negative battery terminal.
Lower the vehicle and perform a test start.