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

Toyota Corolla E170 (2013-2019)

Error Codes

1-2 hours

Time

medium

Difficulty

high

Severity

3 min read

539 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 your 2013-2019 Toyota Corolla E170. Step-by-step guide with symptoms, diagnostic steps, and repair instructions.

Affected Component

Electrical

Estimated Time

1-2 hours

⚠️ Safety Warnings

Important safety information - read before proceeding

•Disconnect the battery before working on electrical systems to prevent shock or short circuits.

Symptoms

•Engine does not crank, only produces a clicking sound
•Dashboard lights may dim or flicker when the key is turned
•Possible absence of noise from the starter motor
•Battery warning light illuminated
•Electrical accessories (radio, lights) may operate slowly or not at all

Diagnostic Steps

1
Check the battery voltage using a multimeter; ensure it reads at least 12.4 volts for a healthy battery.
2
Inspect battery terminals for corrosion or loose connections; clean and tighten as necessary.
3
Test the starter relay by swapping it with another identical relay in the fuse box.
4
Check the fuses related to the starting system for continuity; replace any blown fuses.
5
Perform a voltage drop test on the battery cables to check for excessive resistance.
6
If the battery and connections are good, test the starter motor directly by applying voltage to see if it turns.

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
•Wrench set
•Screwdriver
•Safety goggles
•Jumper cables

Parts Required

•Starter relay (if faulty)
•Fuses (if blown)
•Starter motor (if defective)

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Diagnostic Steps

1
Check the battery voltage using a multimeter; ensure it reads at least 12.4 volts for a healthy battery.
2
Inspect battery terminals for corrosion or loose connections; clean and tighten as necessary.
3
Test the starter relay by swapping it with another identical relay in the fuse box.
4
Check the fuses related to the starting system for continuity; replace any blown fuses.
5
Perform a voltage drop test on the battery cables to check for excessive resistance.
6
If the battery and connections are good, test the starter motor directly by applying voltage to see if it turns.

Solution

1. Preparation

Gather tools: multimeter, socket set, wrench set, screwdriver, and safety goggles.
Disconnect the negative battery terminal to ensure safety while working on electrical components.

2. Battery Inspection

Sub-step 1: Clean the battery terminals using a mixture of baking soda and water to remove corrosion.
Sub-step 2: Tighten the battery terminals to ensure a secure connection.
Sub-step 3: Reconnect the negative terminal once cleaned and tightened.

3. Starter Relay and Fuse Check

Sub-step 1: Locate the fuse box under the hood and identify the starter relay.
Sub-step 2: Remove the starter relay and inspect it visually for damage.
Sub-step 3: Swap the starter relay with another relay of the same type to check for functionality.
Sub-step 4: Inspect the fuses related to starting and replace any that are blown.

4. Starter Motor Testing

Sub-step 1: If the battery is confirmed working, locate the starter motor.
Sub-step 2: Disconnect the electrical connector from the starter motor.
Sub-step 3: Using jumper cables, connect the positive lead to the starter terminal and the negative lead to the starter housing.
Sub-step 4: If the starter engages and spins, it is functioning properly; if not, it may need replacement.

5. Reassembly

Reconnect all components in reverse order after repairs are confirmed.
Ensure all connections are tight and secure.