my Ram 1500 DT (2019-Present) remote start not working, what should I check?

Ram 1500 DT (2019-Present)

Error Codes

1-2 hours

Time

medium

Difficulty

medium

Severity

3 min read

521 words

Problem Statement

Learn how to diagnose and fix remote start issues in Ram 1500 DT (2019-Present). Step-by-step guide with symptoms, diagnostic steps, and solutions.

Affected Component

Electrical

Estimated Time

1-2 hours

⚠️ Safety Warnings

Important safety information - read before proceeding

•Disconnect the battery before working on any electrical components to avoid shorts.

Symptoms

•Remote start button does not activate engine
•Engine cranks but does not start
•No lights or sounds when attempting to remote start
•Check engine light illuminated
•Key fob battery low warning displayed
•Security light flashing on dashboard

Diagnostic Steps

1
Verify that the key fob is within range of the vehicle.
2
Check the key fob battery level and replace if necessary.
3
Scan the vehicle's computer for any error codes using an OBD-II scanner.
4
Inspect all fuses related to the remote start system for any blown fuses.
5
Confirm that the vehicle is in a suitable condition for remote start (e.g., doors closed, hood closed, and vehicle in park).
6
Test the remote start system with a second key fob to rule out a key fob issue.

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
•Flathead screwdriver
•Fuse pullers or pliers

Parts Required

•Key fob battery (CR2032)
•Replacement fuses (if necessary)

Related Faults

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Diagnostic Steps

1
Verify that the key fob is within range of the vehicle.
2
Check the key fob battery level and replace if necessary.
3
Scan the vehicle's computer for any error codes using an OBD-II scanner.
4
Inspect all fuses related to the remote start system for any blown fuses.
5
Confirm that the vehicle is in a suitable condition for remote start (e.g., doors closed, hood closed, and vehicle in park).
6
Test the remote start system with a second key fob to rule out a key fob issue.

Solution

1. Preparation

Gather necessary tools and parts.
Ensure the vehicle is parked safely and on a flat surface.
Disconnect the negative battery terminal to prevent electrical shorts.

2. Key Fob Battery Replacement

Locate the small slot on the side of the key fob and use a flathead screwdriver to gently pry open the fob.
Remove the old battery, noting its orientation.
Insert a new battery (typically CR2032) in the same orientation as the old one.
Snap the key fob back together securely.

3. Inspecting Fuses

Open the driver's side door and locate the fuse box (usually under the dashboard).
Remove the cover of the fuse box and reference the diagram on the cover or in the owner’s manual to identify the remote start fuse.
Pull the fuse using fuse pullers or pliers and inspect it for continuity.
Replace any blown fuses with the same amperage rating.

4. System Reset

Reconnect the negative battery terminal.
Start the engine using the traditional method.
Turn the ignition off and attempt to use the remote start feature again.

5. Key Fob Reprogramming (if necessary)

Insert the key into the ignition and turn to the "On" position without starting the engine.
Press the "Lock" button on the key fob for about 5 seconds.
Turn the key off and remove it.
Test the remote start feature again.