how to fix a Toyota Corolla E170 (2013-2019) that won't start even with a new battery

Toyota Corolla E170 (2013-2019)

Error Codes

2-4 hours

Time

medium

Difficulty

high

Severity

3 min read

586 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 a 2013-2019 Toyota Corolla E170. Step-by-step guide with symptoms, diagnostic steps, 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 engine to cool before inspecting components.

Symptoms

•Engine cranks but does not start
•Dashboard warning lights illuminated
•No sound from the fuel pump during the key-on position
•Check engine light may be on
•Security indicator light flashing (if equipped)

Diagnostic Steps

1
Check for error codes using an OBD-II scanner to identify any stored trouble codes.
2
Inspect the battery connections and cables for corrosion or loose connections.
3
Test the ignition fuse and relay for continuity and proper function.
4
Verify fuel pump operation by listening for the pump priming sound when the ignition is turned to the 'ON' position.
5
Check the crankshaft position sensor and camshaft position sensor for proper operation.
6
Inspect the wiring harness for any damaged or frayed wires that may affect starting.

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
•Wire brush
•Jumper wires
•Socket set

Parts Required

•Fuses (as needed)
•Fuel pump relay (if faulty)
•Crankshaft position sensor (if faulty)
•Camshaft position sensor (if faulty)

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Diagnostic Steps

1
Check for error codes using an OBD-II scanner to identify any stored trouble codes.
2
Inspect the battery connections and cables for corrosion or loose connections.
3
Test the ignition fuse and relay for continuity and proper function.
4
Verify fuel pump operation by listening for the pump priming sound when the ignition is turned to the 'ON' position.
5
Check the crankshaft position sensor and camshaft position sensor for proper operation.
6
Inspect the wiring harness for any damaged or frayed wires that may affect starting.

Solution

1. Preparation

Gather all necessary tools and parts.
Ensure the vehicle is in a safe and well-ventilated area.
Disconnect the negative battery terminal to prevent any electrical shorts.

2. Inspect Battery Connections

Sub-steps:
- Remove the battery terminal covers if present.
- Clean the battery terminals and cables with a wire brush to remove any corrosion.
- Reconnect the battery terminals securely (positive first, then negative).

3. Test and Replace Fuses/Relays

Sub-steps:
- Locate the fuse box (usually under the dashboard or in the engine compartment).
- Use a multimeter to check the ignition and fuel pump fuses for continuity.
- Replace any blown fuses with the same amperage rating.
- If the relay is faulty, remove it and replace it with a new one or swap it with a similar relay in the fuse box for testing.

4. Verify Fuel Pump Operation

Sub-steps:
- Locate the fuel pump relay and remove it.
- Use jumper wires to activate the fuel pump directly from the relay socket.
- Listen for the pump to activate; if it does not run, the pump may need to be replaced.

5. Check Crankshaft and Camshaft Position Sensors

Sub-steps:
- Locate the crankshaft position sensor (usually near the engine block) and the camshaft position sensor (often on the valve cover).
- Disconnect the electrical connectors and inspect the wiring for damage.
- Use a multimeter to check for proper resistance values according to the service manual specifications.
- Replace any faulty sensors.

6. Final Assembly

Sub-steps:
- Reconnect all electrical connectors that were disconnected during inspection.
- Reinstall any covers or components removed for access.
- Reconnect the negative battery terminal.