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

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

Symptoms

•Engine does not crank, only a clicking sound is heard
•Dashboard lights may dim when the key is turned to the start position
•No response from the starter motor
•Possible battery warning light illuminated
•Electrical accessories may function intermittently

Diagnostic Steps

1
Check the battery voltage using a multimeter; it should read above 12.4 volts.
2
Inspect battery terminals for corrosion or loose connections.
3
Test the battery with a load tester to confirm its ability to hold charge.
4
Check the fuses related to the starting system for any blown fuses.
5
Inspect the starter motor connections for tightness and damage.
6
Test the starter relay by swapping it with a similar relay in the fuse box.

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
•Torque wrench
•Battery terminal cleaner

Parts Required

•New battery (if applicable)
•Starter motor (if applicable)
•Fuses (if found blown)

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Diagnostic Steps

1
Check the battery voltage using a multimeter; it should read above 12.4 volts.
2
Inspect battery terminals for corrosion or loose connections.
3
Test the battery with a load tester to confirm its ability to hold charge.
4
Check the fuses related to the starting system for any blown fuses.
5
Inspect the starter motor connections for tightness and damage.
6
Test the starter relay by swapping it with a similar relay in the fuse box.

Solution

1. Preparation

Gather tools: OBD-II scanner, multimeter, socket set, torque wrench, battery terminal cleaner.
Ensure the vehicle is in park (automatic) or neutral (manual) and the parking brake is engaged.

2. Battery Inspection and Replacement

Disconnect Battery:
- Use a socket set to disconnect the negative terminal first, followed by the positive terminal.
- Safety Warning: Always disconnect the battery before working on electrical systems.
Clean Battery Terminals:
- Use a battery terminal cleaner to remove corrosion from the terminals and cable ends.
- Reconnect the terminals securely after cleaning.
Test or Replace Battery:
- If the battery voltage is low or it fails the load test, replace it with a new battery of the same specification (usually a Group 35 for Corolla).
- Ensure the new battery is fully charged before installation.

3. Starter Motor Inspection

Access Starter Motor:
- If the battery is functional and the problem persists, locate the starter motor (usually near the transmission).
- Remove any components obstructing access as necessary using a socket set.
Inspect Connections:
- Check the main power cable and smaller trigger wire for tightness and damage.
- If corroded, clean the contacts or replace the cables as needed.
Test Starter Motor:
- Use a multimeter to check for voltage at the starter terminal while a helper turns the key to the start position.
- If there is no voltage, the issue may lie in the ignition switch or wiring.
Replace Starter Motor (if needed):
- If the starter is faulty, remove it by unbolting it from the engine/transmission.
- Install the new starter in reverse order, ensuring all connections are secure and torqued to manufacturer's specs.