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

Toyota Corolla E170 (2013-2019)

Error Codes

1-3 hours

Time

medium

Difficulty

high

Severity

3 min read

564 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 condition in Toyota Corolla E170 (2013-2019). Step-by-step guide with diagnostic procedures 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 to avoid shock or short circuits.

Symptoms

•Clicking noise when turning the ignition key
•Dashboard lights dimming or flickering
•No engine cranking or turning over
•Possible intermittent electrical issues (e.g., lights or radio not functioning properly)
•Battery warning light illuminated (if applicable)

Diagnostic Steps

1
Check the battery voltage using a multimeter to ensure it has adequate charge (12.4 volts or higher).
2
Inspect battery terminals for corrosion or loose connections.
3
Test the starter motor by attempting to bypass it with a direct connection from the battery.
4
Examine fuses related to the starting system for any blown fuses.
5
Verify the integrity of the ignition switch and wiring by checking for continuity.
6
Check for any error codes using an OBD-II scanner that may indicate electrical 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

•Multimeter
•Socket set
•OBD-II scanner
•Jumper cables
•Wire brush

Parts Required

•New battery (if necessary)
•Replacement fuses (if any are blown)

Related Faults

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Diagnostic Steps

1
Check the battery voltage using a multimeter to ensure it has adequate charge (12.4 volts or higher).
2
Inspect battery terminals for corrosion or loose connections.
3
Test the starter motor by attempting to bypass it with a direct connection from the battery.
4
Examine fuses related to the starting system for any blown fuses.
5
Verify the integrity of the ignition switch and wiring by checking for continuity.
6
Check for any error codes using an OBD-II scanner that may indicate electrical issues.

Solution

1. Preparation

Gather tools: multimeter, socket set, OBD-II scanner, jumper cables.
Ensure the vehicle is in park (automatic) or neutral (manual) and set the parking brake.
Disconnect the negative battery terminal to prevent electrical shorts during the repair.

2. Battery Inspection and Replacement

Check Battery Voltage:
- Use a multimeter to measure the voltage across the battery terminals.
- If below 12.4 volts, proceed to jump-start the vehicle or replace the battery.
Clean Battery Terminals:
- Remove the battery terminals (negative first, then positive).
- Clean any corrosion from the terminals and cable clamps using a wire brush.
- Reattach terminals securely.
Replace Battery (if necessary):
- If the battery is weak or faulty, remove it using a socket set.
- Install a new battery, ensuring the correct orientation and secure connections.

3. Starter Motor Inspection

Test the Starter Relay:
- Locate the starter relay in the fuse box and swap it with a similar relay to rule out relay failure.
Directly Test the Starter Motor:
- Using jumper cables, connect the battery directly to the starter motor terminals (ensure proper safety measures).
- If the starter engages, it may need replacement. If it does not, proceed to check wiring and ignition switch.

4. Fuses and Wiring Inspection

Check Fuses:
- Inspect the fuse box for any blown fuses related to the starting system.
- Replace any blown fuses with the same amperage rating.
Inspect Wiring:
- Visually inspect wiring for any signs of wear, fraying, or disconnection.
- Repair or replace damaged wiring as needed.