how to fix my Toyota Highlander Third Generation (2014-2019) if it won't start and just clicks

Toyota Highlander Third Generation (2014-2019)

Error Codes

2-4 hours

Time

medium

Difficulty

high

Severity

3 min read

511 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 clicking issue in Toyota Highlander (2014-2019). Step-by-step guide with diagnostic procedures 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.
•Allow the engine to cool before working on components near the engine.

Symptoms

•Engine does not crank; only a clicking noise is heard
•Dashboard lights may dim or flicker when attempting to start
•No sound from the starter motor
•Battery warning light illuminated
•Electrical accessories may function intermittently

Diagnostic Steps

1
Check the battery voltage using a multimeter; should be above 12.4 volts.
2
Inspect battery terminals for corrosion or loose connections.
3
Test the ignition switch for proper operation.
4
Check the fuses related to the starting system.
5
Measure voltage at the starter solenoid when the key is turned to the start position.
6
Inspect the wiring and connections associated with the starter motor and solenoid.

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
•Socket set
•Wire brush
•Screwdriver set

Parts Required

•New battery (if necessary)
•Starter motor (if defective)
•Ignition switch (if defective)

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; should be above 12.4 volts.
2
Inspect battery terminals for corrosion or loose connections.
3
Test the ignition switch for proper operation.
4
Check the fuses related to the starting system.
5
Measure voltage at the starter solenoid when the key is turned to the start position.
6
Inspect the wiring and connections associated with the starter motor and solenoid.

Solution

1. Preparation

Gather tools and parts needed.
Ensure the vehicle is in park (or neutral) with the parking brake engaged.
Disconnect the negative battery terminal to prevent electrical shorts.

2. Battery Inspection

Sub-step 1: Clean battery terminals using a wire brush to remove corrosion.
Sub-step 2: Tighten the battery terminal connections.
Sub-step 3: If the battery is below 12.4 volts, charge it fully or replace if necessary.

3. Starter Motor Inspection

Sub-step 1: Reconnect the negative battery terminal.
Sub-step 2: Locate the starter motor (usually near the transmission).
Sub-step 3: Use a socket set to remove the bolts securing the starter motor.
Sub-step 4: Disconnect the electrical connections from the starter motor.
Sub-step 5: Bench test the starter motor or replace it if it fails to operate.

4. Replace Ignition Switch (if needed)

Sub-step 1: Remove the steering column cover using a screwdriver.
Sub-step 2: Disconnect the wiring harness from the ignition switch.
Sub-step 3: Remove the ignition switch from the steering column.
Sub-step 4: Install the new ignition switch and reconnect the wiring harness.

5. Reassemble and Test

Sub-step 1: Reinstall the starter motor and secure it with bolts.
Sub-step 2: Reconnect all electrical connections.
Sub-step 3: Reattach the negative battery terminal.
Sub-step 4: Start the vehicle to ensure proper operation.