my Tesla Outback’s dashboard lights are flickering what’s wrong

Subaru Outback 5th Generation (2015-2019)

Error Codes

1-3 hours

Time

medium

Difficulty

medium

Severity

3 min read

492 words

Problem Statement

Learn how to diagnose and fix dashboard lights flickering in Tesla Outback. Step-by-step guide with diagnostic procedures and repair instructions.

Affected Component

Electrical

Estimated Time

1-3 hours

⚠️ Safety Warnings

Important safety information - read before proceeding

•Disconnect the battery before working on electrical systems.
•Allow the engine to cool before inspecting or replacing components.

Symptoms

•Dashboard lights flickering intermittently
•Possible dimming or brightening of interior lights
•Check battery warning light illuminated
•Erratic behavior of electronic components (like infotainment system)
•Potential loss of power to accessories

Diagnostic Steps

1
Inspect the battery terminals for corrosion and tightness.
2
Use a multimeter to check the battery voltage; it should be around 12.6 volts when fully charged.
3
Scan the vehicle's computer for any stored trouble codes using an OBD-II scanner.
4
Check the alternator output while the engine is running to ensure it’s charging the battery properly.
5
Visually inspect fuses related to dashboard and interior lighting for any blown fuses.
6
Examine wiring harness connections for any signs of damage or loose connections.

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
•OBD-II scanner
•Wire brush
•Socket set

Parts Required

•New battery (if necessary)
•Replacement fuses (if necessary)
•New alternator (if necessary)

Related Faults

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Diagnostic Steps

1
Inspect the battery terminals for corrosion and tightness.
2
Use a multimeter to check the battery voltage; it should be around 12.6 volts when fully charged.
3
Scan the vehicle's computer for any stored trouble codes using an OBD-II scanner.
4
Check the alternator output while the engine is running to ensure it’s charging the battery properly.
5
Visually inspect fuses related to dashboard and interior lighting for any blown fuses.
6
Examine wiring harness connections for any signs of damage or loose connections.

Solution

1. Battery Inspection

Sub-steps:
- Disconnect the negative terminal of the battery to ensure safety.
- Remove any corrosion from the battery terminals using a wire brush.
- Reconnect the terminals securely.

2. Battery Replacement (if necessary)

Sub-steps:
- If the battery voltage is below 12.4 volts, consider replacing it.
- Remove the old battery by disconnecting the positive terminal first, followed by the negative.
- Install the new battery, connecting the positive terminal first, then the negative.
- Ensure the battery is secured in place.

3. Alternator Testing

Sub-steps:
- Reconnect the battery and start the engine.
- Use a multimeter to check the alternator output; it should read between 13.7 and 14.7 volts.
- If the alternator output is low, replace the alternator.

4. Fuse Replacement

Sub-steps:
- Locate the fuse box and remove the cover.
- Identify and replace any blown fuses related to dashboard lighting.
- Ensure to use the correct amperage for replacement fuses.

5. Wiring Inspection and Repair

Sub-steps:
- Carefully inspect the wiring harness for any signs of wear or damage.
- Repair or replace any damaged wires as necessary.
- Secure any loose connections to ensure proper electrical flow.