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

Genesis G70 IG (2017-2023)

Error Codes

2-4 hours

Time

medium

Difficulty

high

Severity

3 min read

596 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 clicking issue in Genesis G70 (2017-2023). 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.
•Wear safety goggles and gloves to protect from battery acid and electrical shorts.

Symptoms

•Engine does not crank
•Clicking noise from the starter area
•Dashboard lights dim when the key is turned
•No sound from the fuel pump
•Possible battery warning light illuminated

Diagnostic Steps

1
Check the battery voltage using a multimeter; it should be above 12.4 volts.
2
Inspect battery connections for corrosion or looseness.
3
Test the starter relay by swapping it with another relay of the same type.
4
Check the fuses related to the starting system for any blown fuses.
5
Use an OBD-II scanner to check for any diagnostic trouble codes (DTCs) related to the starting system.
6
Perform a voltage drop test on the battery cables and starter circuit.

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
•Battery terminal cleaner
•OBD-II scanner

Parts Required

•Replacement battery (if needed)
•Starter motor (if faulty)
•Battery cables (if excessive voltage drop is detected)

Related Faults

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Diagnostic Steps

1
Check the battery voltage using a multimeter; it should be above 12.4 volts.
2
Inspect battery connections for corrosion or looseness.
3
Test the starter relay by swapping it with another relay of the same type.
4
Check the fuses related to the starting system for any blown fuses.
5
Use an OBD-II scanner to check for any diagnostic trouble codes (DTCs) related to the starting system.
6
Perform a voltage drop test on the battery cables and starter circuit.

Solution

1. Preparation

Gather necessary tools and parts.
Ensure the vehicle is in park (automatic) or neutral (manual).
Disconnect the negative battery terminal for safety.

2. Battery Inspection and Replacement

Inspect battery terminals for corrosion:
- Clean terminals with a mixture of baking soda and water.
- Tighten any loose connections.
If the battery voltage is below 12.4 volts, charge the battery or replace it if it cannot hold a charge:
- Remove the battery by disconnecting the negative terminal first, then the positive terminal.
- Remove any securing brackets and lift out the battery.
- Install the new battery by placing it in the tray, securing it, and connecting the positive terminal first, followed by the negative terminal.

3. Starter and Relay Inspection

Locate the starter motor and inspect it visually for damage or loose connections.
If necessary, remove the starter for testing:
- Disconnect the wiring harness and the starter cable.
- Unbolt the starter motor from its mounting.
Test the starter off the vehicle using a battery: connect positive to the terminal and negative to the casing; it should spin freely.
If the starter is faulty, replace it with a new unit, ensuring all connections are tight and secure.

4. Voltage Drop Testing

Reconnect the negative battery terminal and attempt to start the vehicle.
Use a multimeter to perform a voltage drop test on the positive cable from the battery to the starter:
- Connect one lead to the battery positive terminal and the other to the starter positive terminal. A voltage drop over 0.2 volts indicates a bad cable or connection.
If excessive voltage drop is detected, inspect and replace the battery cables as needed.