my Genesis G70 IG (2017-2023) won't start and just clicks, what should I do?

Genesis G70 IG (2017-2023)

Error Codes

1-2 hours

Time

medium

Difficulty

high

Severity

3 min read

557 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 with clicking sound in Genesis G70 (2017-2023). Step-by-step guide with diagnostic procedures 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 components to avoid shock or short circuits.
•Allow the engine to cool before working under the hood to prevent burns.

Symptoms

•Clicking sound when the ignition key is turned
•Dashboard lights dim or flicker when trying to start
•Engine does not crank or attempt to start
•Possible intermittent electrical issues (e.g., power windows slow)
•Check engine light may illuminate

Diagnostic Steps

1
Check the battery voltage using a multimeter; it should read at least 12.4 volts.
2
Inspect battery terminals for corrosion or loose connections.
3
Test the starter motor by bypassing the ignition switch (using a jumper wire).
4
Check the fuses related to the starting system for any blown fuses.
5
Inspect the ignition switch and key for proper functionality.
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
•Jumper wire
•Flashlight

Parts Required

•Battery (if found to be faulty)
•Fuses (as needed)
•Starter relay (if found to be faulty)

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Diagnostic Steps

1
Check the battery voltage using a multimeter; it should read at least 12.4 volts.
2
Inspect battery terminals for corrosion or loose connections.
3
Test the starter motor by bypassing the ignition switch (using a jumper wire).
4
Check the fuses related to the starting system for any blown fuses.
5
Inspect the ignition switch and key for proper functionality.
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, jumper wire, flashlight.
Ensure the vehicle is in park (automatic) or neutral (manual) and the parking brake is engaged.

2. Battery Inspection

Step 1: Disconnect the negative (-) terminal of the battery using a socket wrench.
Step 2: Clean any corrosion from the battery terminals using a wire brush.
Step 3: Reconnect the terminals securely and ensure they are tight.

3. Starter Motor Testing

Step 1: Locate the starter motor (usually found at the base of the engine near the transmission).
Step 2: Disconnect the wiring harness from the starter.
Step 3: Use a multimeter to measure the voltage at the starter terminal when the key is turned to the start position; it should be 12 volts or more.
Step 4: If voltage is present, use a jumper wire to connect the battery positive terminal directly to the starter terminal to check for operation; a functional starter should engage and crank the engine.

4. Relay and Fuse Replacement

Step 1: Locate the fuse box and identify the starter relay and fuses.
Step 2: Remove any blown fuses and replace them with new fuses of the same amperage.
Step 3: Swap the starter relay with a similar relay to test functionality.

5. Final Assembly

Step 1: Reconnect all components and wiring.
Step 2: Reconnect the negative (-) battery terminal.
Step 3: Start the vehicle to check if the issue is resolved.