how to reset the service engine soon light on my Ram 1500 DT (2019-Present)

Ram 1500 DT (2019-Present)

Error Codes

15-30 minutes

Time

easy

Difficulty

medium

Severity

3 min read

406 words

Problem Statement

Learn how to reset the Service Engine Soon light on your Ram 1500 DT (2019-Present). Step-by-step guide with diagnostic procedures and tools required.

Affected Component

Engine

Estimated Time

15-30 minutes

⚠️ Safety Warnings

Important safety information - read before proceeding

•Ensure the vehicle is in park and on a level surface before performing any diagnostic steps.

Symptoms

•Service Engine Soon light illuminated
•Engine running smoothly but light remains on
•Previous maintenance performed (e.g., oil change, filter replacement)
•No noticeable abnormal engine behavior
•May have recently connected a diagnostic tool

Diagnostic Steps

1
Scan for error codes using an OBD-II scanner to identify any logged issues.
2
Check the vehicle’s maintenance history to ensure all recommended services are completed.
3
Confirm that the gas cap is tightened properly as a loose cap can trigger the light.
4
Clear any codes using the OBD-II scanner to see if the light returns.

Solution

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

Parts Required

•None required for resetting, but keep a replacement gas cap handy if needed.

Related Faults

Share this solution

Comments

No comments yet

Be the first to share your thoughts

Back to Generation

Diagnostic Steps

1
Scan for error codes using an OBD-II scanner to identify any logged issues.
2
Check the vehicle’s maintenance history to ensure all recommended services are completed.
3
Confirm that the gas cap is tightened properly as a loose cap can trigger the light.
4
Clear any codes using the OBD-II scanner to see if the light returns.

Solution

1. Preparation

Gather the necessary tools: OBD-II scanner.
Ensure the vehicle is parked safely and the ignition is off.

2. Connect OBD-II Scanner

Locate the OBD-II port below the dashboard, usually near the steering column.
Plug the OBD-II scanner into the port.

3. Retrieve and Clear Codes

Turn the ignition to the "On" position without starting the engine.
Follow the scanner’s instructions to retrieve any stored trouble codes.
If codes are present, note them down for future reference.
Use the scanner's function to clear the codes, which should reset the "Service Engine Soon" light.

4. Disconnect the Scanner

After clearing the codes, safely disconnect the OBD-II scanner from the port.
Turn off the ignition.

5. Monitor the Vehicle

Start the engine and check if the "Service Engine Soon" light is still illuminated.
Drive the vehicle for a short distance to ensure the light does not return.