why does my Ram 1500 DT (2019-Present) dashboard lights keep flickering?

Ram 1500 DT (2019-Present)

Error Codes

2-4 hours

Time

medium

Difficulty

medium

Severity

3 min read

544 words

Problem Statement

Learn how to diagnose and fix dashboard lights flickering in Ram 1500 DT (2019-Present). 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 the electrical system.
•Allow the engine to cool before starting work on the alternator.

Symptoms

•Dashboard lights flickering or flashing
•Possible accompanying dimming of headlights
•Erratic behavior of other electrical components (e.g., radio, power windows)
•Battery warning light illuminated
•Intermittent loss of power to accessories

Diagnostic Steps

1
Inspect the battery terminals and connections for corrosion or looseness.
2
Use an OBD-II scanner to check for any stored error codes related to the electrical system.
3
Test the battery voltage with a multimeter; it should read around 12.6 volts when fully charged.
4
Inspect the alternator output to ensure it is functioning correctly (should be between 13.5 to 14.5 volts when the engine is running).
5
Check all fuses related to the dashboard and lighting circuits for any blown fuses.
6
Inspect wiring harnesses for signs of damage, fraying, 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

•OBD-II scanner
•Multimeter
•Socket set
•Wire brush
•Torque wrench

Parts Required

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

Related Faults

Share this solution

Comments

No comments yet

Be the first to share your thoughts

Back to Generation

Diagnostic Steps

1
Inspect the battery terminals and connections for corrosion or looseness.
2
Use an OBD-II scanner to check for any stored error codes related to the electrical system.
3
Test the battery voltage with a multimeter; it should read around 12.6 volts when fully charged.
4
Inspect the alternator output to ensure it is functioning correctly (should be between 13.5 to 14.5 volts when the engine is running).
5
Check all fuses related to the dashboard and lighting circuits for any blown fuses.
6
Inspect wiring harnesses for signs of damage, fraying, or loose connections.

Solution

1. Preparation

Gather all necessary tools and parts.
Disconnect the negative battery terminal to ensure safety while working on the electrical system.

2. Clean Battery Terminals

Remove the battery terminals (negative first, then positive).
Clean the terminals and battery posts with a wire brush to remove any corrosion.
Reconnect the battery terminals securely (positive first, then negative).

3. Test and Replace Battery

Use a multimeter to test the battery voltage.
- If the voltage is below 12.4 volts, consider replacing the battery.
If replacement is needed:
- Remove the old battery by disconnecting terminals (negative first).
- Install the new battery, connecting the positive terminal first.

4. Inspect and Replace Alternator (if necessary)

If the alternator output is low:
- Remove the serpentine belt by loosening the tensioner.
- Disconnect the wiring harness from the alternator.
- Unbolt the alternator and remove it from the engine.
- Install the new alternator by reversing the removal steps and tightening bolts to the manufacturer's specification (usually around 30-40 ft-lbs).

5. Check and Replace Fuses

Locate the fuse box and identify the relevant fuses for the dashboard and lighting circuits.
Remove any blown fuses and replace them with new fuses of the same amperage.

6. Inspect Wiring Harness

Visually check the wiring harnesses for damage or wear.
If any wires are damaged, repair or replace them as necessary to ensure proper electrical connections.