why does my Ram 1500 DT (2019-Present) remote key fob not work?

Ram 1500 DT (2019-Present)

Error Codes

30 minutes to 1 hour

Time

medium

Difficulty

medium

Severity

3 min read

500 words

Problem Statement

Learn how to diagnose and fix a non-working remote key fob for 2019-Present Ram 1500 DT. Step-by-step guide with symptoms, diagnostic steps, and solutions.

Affected Component

Electrical

Estimated Time

30 minutes to 1 hour

⚠️ Safety Warnings

Important safety information - read before proceeding

•Be cautious when using tools to avoid damaging the key fob or injuring yourself.

Symptoms

•Remote key fob not responding to button presses
•Dashboard warning light indicating a key fob issue
•Inability to start the vehicle using the key fob
•Physical key works but remote functions do not
•Battery in fob has not been replaced recently

Diagnostic Steps

1
Check the battery in the key fob to ensure it is not dead.
2
Inspect the key fob for signs of physical damage or wear.
3
Verify that the vehicle's keyless entry system is functioning by using another key fob (if available).
4
Use an OBD-II scanner to check for any related error codes.
5
Check the vehicle settings to ensure the keyless entry feature is enabled.
6
Test the key fob range to determine if the issue is related to distance.

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

•Small flathead screwdriver
•Replacement battery (usually CR2032)
•Multimeter

Parts Required

•Replacement battery (CR2032)

Related Faults

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Diagnostic Steps

1
Check the battery in the key fob to ensure it is not dead.
2
Inspect the key fob for signs of physical damage or wear.
3
Verify that the vehicle's keyless entry system is functioning by using another key fob (if available).
4
Use an OBD-II scanner to check for any related error codes.
5
Check the vehicle settings to ensure the keyless entry feature is enabled.
6
Test the key fob range to determine if the issue is related to distance.

Solution

1. Battery Replacement

Tools Required: Small flathead screwdriver, replacement battery (usually CR2032).
Instructions:
1. Use a small flathead screwdriver to gently pry open the key fob casing.
2. Remove the old battery and dispose of it properly.
3. Insert the new battery, ensuring the positive (+) side is facing up.
4. Snap the key fob casing back together until it clicks.

2. Reprogram the Key Fob

Tools Required: None (may need access to vehicle).
Instructions:
1. Sit inside the vehicle and close all doors.
2. Insert the key into the ignition and turn it to the "ON" position without starting the engine.
3. Press and hold the "Unlock" button on the key fob while turning the key to the "OFF" position and back to "ON" three times.
4. Release the "Unlock" button; the doors should lock and unlock to confirm programming.

3. Inspect the Key Fob Circuit Board

Tools Required: Small flathead screwdriver, multimeter.
Instructions:
1. Open the key fob casing again.
2. Inspect the circuit board for any visible damage or corrosion.
3. Use a multimeter to check for continuity in the buttons. If any button does not register, it may need repair or replacement.