my Toyota Corolla E170 (2013-2019) won’t start, just clicks, what should I do?

Toyota Corolla E170 (2013-2019)

Error Codes

1-3 hours

Time

medium

Difficulty

high

Severity

3 min read

560 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 a no-start condition in Toyota Corolla E170 (2013-2019). Step-by-step guide with symptoms, diagnostic steps, and repair instructions.

Affected Component

Electrical

Estimated Time

1-3 hours

⚠️ Safety Warnings

Important safety information - read before proceeding

•Disconnect the battery before working on electrical systems.
•Allow the engine to cool before accessing components.

Symptoms

•Clicking noise when the ignition key is turned
•Dashboard lights may dim or flicker
•No engine cranking or turnover
•Possible intermittent electrical issues
•Check engine light may be illuminated

Diagnostic Steps

1
Check the battery voltage using a multimeter; it should read at least 12.4 volts for a healthy battery.
2
Inspect battery terminals for corrosion or loose connections.
3
Verify the condition of the starter motor by testing the voltage at the starter terminal while someone turns the key to the start position.
4
Examine fuses related to the starting system (e.g., starter relay, ignition fuse) for any blown fuses.
5
Test the ignition switch operation to ensure it is sending power to the starter.
6
Check for any error codes using an OBD-II scanner that may indicate other issues.

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
•Socket set
•Wrench set
•Battery terminal cleaner

Parts Required

•Replacement battery (if necessary)
•Starter motor (if necessary)
•Fuses or relays (if blown)

Related Faults

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Diagnostic Steps

1
Check the battery voltage using a multimeter; it should read at least 12.4 volts for a healthy battery.
2
Inspect battery terminals for corrosion or loose connections.
3
Verify the condition of the starter motor by testing the voltage at the starter terminal while someone turns the key to the start position.
4
Examine fuses related to the starting system (e.g., starter relay, ignition fuse) for any blown fuses.
5
Test the ignition switch operation to ensure it is sending power to the starter.
6
Check for any error codes using an OBD-II scanner that may indicate other issues.

Solution

1. Preparation

Gather tools: OBD-II scanner, multimeter, socket set, wrench set, and battery terminal cleaner.
Ensure the vehicle is in park (automatic) or neutral (manual) for safety.
Disconnect the battery negative terminal to prevent electrical shorts.

2. Battery Inspection and Replacement

Inspect the Battery:
- Clean any corrosion from battery terminals using a battery terminal cleaner.
- Tighten any loose connections.
Test Voltage:
- Use a multimeter to measure the battery voltage. If it's below 12.4 volts, charge or replace the battery.
Replace the Battery (if necessary):
- Remove the negative terminal first, followed by the positive terminal.
- Remove the battery hold-down bracket and lift the battery out.
- Install the new battery, securing it in place with the hold-down bracket.
- Connect the positive terminal first, then the negative terminal.
- Ensure connections are tight.

3. Starter Motor Inspection

Check Starter Connections:
- Inspect the wiring and connections at the starter motor for damage or looseness.
Test Starter Motor:
- With the multimeter at the starter terminal, have someone turn the key to start while you check for voltage.
- If voltage is present but the starter does not engage, the starter may need replacement.

4. Ignition Switch and Relay Check

Inspect Ignition Switch:
- Test the ignition switch to confirm it is functioning correctly.
Check Starter Relay:
- Locate the starter relay and swap it with another relay of the same type (if available) to see if the issue resolves.