why does my Tesla Outback 5th Generation (2015-2019) dashboard lights flicker?

Subaru Outback 5th Generation (2015-2019)

Error Codes

2-4 hours

Time

medium

Difficulty

medium

Severity

3 min read

580 words

Problem Statement

Learn how to diagnose and fix dashboard lights flickering in Tesla Outback 2015-2019. 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 to prevent shorts
•Allow the engine to cool before inspecting the alternator or electrical components

Symptoms

•Dashboard lights flickering intermittently
•Check battery warning light illuminated
•Dim or brightening of interior lights
•Unresponsive infotainment system
•Clicking noise from dashboard area
•Difficulty starting the engine

Diagnostic Steps

1
Scan for error codes using OBD-II scanner
2
Inspect battery voltage with a multimeter to ensure it is within the normal range (12.4 - 12.6 volts)
3
Visually inspect battery terminals for corrosion and ensure they are tight
4
Test the alternator output while the engine is running, ensuring it provides between 13.7 to 14.7 volts
5
Check the wiring harness and connectors for any signs of wear, damage, or loose connections
6
Inspect dashboard-related fuses to ensure they are intact and functioning properly

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
•Wire brush
•Torque wrench
•Safety goggles

Parts Required

•New battery (if necessary)
•New alternator (if necessary)
•Fuses (if needed)

Related Faults

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Diagnostic Steps

1
Scan for error codes using OBD-II scanner
2
Inspect battery voltage with a multimeter to ensure it is within the normal range (12.4 - 12.6 volts)
3
Visually inspect battery terminals for corrosion and ensure they are tight
4
Test the alternator output while the engine is running, ensuring it provides between 13.7 to 14.7 volts
5
Check the wiring harness and connectors for any signs of wear, damage, or loose connections
6
Inspect dashboard-related fuses to ensure they are intact and functioning properly

Solution

1. Preparation

Tools Required: OBD-II scanner, multimeter, socket set, wire brush, torque wrench, safety goggles.
Ensure the vehicle is parked on a level surface and the engine is off. Disconnect the negative battery terminal to prevent any electrical shorts during repairs.

2. Battery Inspection

Sub-steps:
1. Reconnect the battery and measure the voltage with a multimeter. If below 12.4 volts, charge or replace the battery.
2. Clean battery terminals using a wire brush to remove corrosion.
3. Tighten the battery connections to ensure a secure fit.

3. Alternator Check

Sub-steps:
1. Start the engine and use the multimeter to measure the voltage at the battery terminals.
2. If the reading is below 13.7 volts, the alternator may need replacement.
3. Remove the alternator by disconnecting the electrical connectors and removing the mounting bolts. Replace it with a new alternator and reconnect all electrical connections.

4. Wiring Inspection

Sub-steps:
1. Carefully inspect the wiring harness for any frayed wires or loose connections.
2. Repair or replace any damaged wiring as needed.
3. Secure any loose connectors to prevent future issues.

5. Fuse Replacement

Sub-steps:
1. Locate the fuse box and identify the fuses related to the dashboard and instrumentation.
2. Replace any blown fuses with new ones of the same amperage.
3. Reconnect the negative battery terminal and test the dashboard lights.