how to fix my Toyota Corolla E170 (2013-2019) when it won't start

Toyota Corolla E170 (2013-2019)

Error Codes

2-4 hours

Time

medium

Difficulty

high

Severity

3 min read

537 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 the 2013-2019 Toyota Corolla E170. 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 vehicle to cool down before inspecting components near the engine.

Symptoms

•Engine cranks but does not start
•No sound when turning the ignition key
•Dashboard lights dim or flicker when attempting to start
•Check engine light illuminated
•Fuel gauge showing low fuel level despite a full tank

Diagnostic Steps

1
Check the battery voltage with a multimeter; it should read at least 12.4 volts.
2
Inspect battery terminals for corrosion and ensure they are tightly connected.
3
Test the starter motor by bypassing it with a jumper wire.
4
Scan the vehicle's OBD-II system for any error codes related to engine starting issues.
5
Verify fuel pump operation by listening for it to engage when the ignition is turned to the ON position.
6
Examine the ignition fuse and relay for continuity and proper function.

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
•Jumper wire
•Wire brush

Parts Required

•Battery (if faulty)
•Starter motor (if faulty)
•Fuel pump (if faulty)
•Fuel pump fuse/relay (if blown)

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Diagnostic Steps

1
Check the battery voltage with a multimeter; it should read at least 12.4 volts.
2
Inspect battery terminals for corrosion and ensure they are tightly connected.
3
Test the starter motor by bypassing it with a jumper wire.
4
Scan the vehicle's OBD-II system for any error codes related to engine starting issues.
5
Verify fuel pump operation by listening for it to engage when the ignition is turned to the ON position.
6
Examine the ignition fuse and relay for continuity and proper function.

Solution

1. Preparation

Gather tools: OBD-II scanner, multimeter, socket set, jumper wire, and safety gloves.
Ensure the vehicle is in a safe working environment, parked on a level surface.

2. Battery Inspection and Replacement

Sub-step 1: Disconnect the negative terminal of the battery to prevent electrical shorts.
Sub-step 2: Clean the battery terminals with a wire brush if corrosion is present.
Sub-step 3: Reconnect the terminals securely and check voltage with a multimeter. Replace the battery if the voltage is below 12.4 volts.

3. Starter Motor Testing

Sub-step 1: Locate the starter motor, usually found near the transmission.
Sub-step 2: Disconnect the starter motor wiring harness.
Sub-step 3: Use a jumper wire to connect the starter terminal to the positive battery terminal and ground the starter casing to the negative terminal. It should engage if functioning correctly.
Sub-step 4: If the starter does not engage, replace the starter motor.

4. Fuel System Inspection

Sub-step 1: Check the fuel pump fuse and relay by removing them from the fuse box and inspecting for continuity using a multimeter.
Sub-step 2: If the fuse is blown, replace it with the same amperage fuse.
Sub-step 3: If the relay is faulty, replace it with a new one.
Sub-step 4: If the fuel pump is not functioning, replace the fuel pump assembly.