how to fix Ram 1500 DT (2019-Present) tailgate not opening

Ram 1500 DT (2019-Present)

Error Codes

1-2 hours

Time

medium

Difficulty

medium

Severity

3 min read

481 words

Problem Statement

Learn how to diagnose and fix the tailgate not opening issue on 2019-present Ram 1500 DT. Step-by-step guide with diagnostic procedures and repair instructions.

Affected Component

Electrical

Estimated Time

1-2 hours

⚠️ Safety Warnings

Important safety information - read before proceeding

•Disconnect the battery before working on electrical components to prevent shorts or shocks.

Symptoms

•Tailgate does not respond to remote unlock command
•Tailgate does not open manually
•Tailgate warning light illuminated on the dashboard
•Grinding noise when attempting to open the tailgate
•Inconsistent tailgate operation (opens intermittently)

Diagnostic Steps

1
Inspect the tailgate wiring harness for any visible damage or corrosion.
2
Use an OBD-II scanner to check for any error codes related to the tailgate or locking mechanism.
3
Test the tailgate actuator by applying direct power to it to see if it operates.
4
Check the remote key fob battery and function to ensure it is transmitting properly.
5
Verify the tailgate latch operation by manually manipulating it to see if it engages and disengages smoothly.

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
•Socket set
•Electrical tape
•Lubricant
•Wire connectors

Parts Required

•Replacement tailgate actuator (if faulty)

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Diagnostic Steps

1
Inspect the tailgate wiring harness for any visible damage or corrosion.
2
Use an OBD-II scanner to check for any error codes related to the tailgate or locking mechanism.
3
Test the tailgate actuator by applying direct power to it to see if it operates.
4
Check the remote key fob battery and function to ensure it is transmitting properly.
5
Verify the tailgate latch operation by manually manipulating it to see if it engages and disengages smoothly.

Solution

1. Preparation

Gather tools and parts needed for repair.
Disconnect the negative battery terminal to ensure safety while working on electrical components.

2. Inspect and Repair Wiring

Sub-step 1: Remove the tailgate inner panel using a socket set.
Sub-step 2: Examine the wiring harness for frays, breaks, or corrosion. Repair any damaged wires using electrical tape or replace the harness if necessary.
Tools Required: Socket set, electrical tape, wire connectors.

3. Replace the Tailgate Actuator (if needed)

Sub-step 1: Disconnect the electrical connector from the tailgate actuator.
Sub-step 2: Unbolt the actuator from its mounting location using a socket set.
Sub-step 3: Install the new actuator by reversing the removal steps and reconnecting the electrical connector.
Tools Required: Socket set, replacement actuator.

4. Check and Adjust Tailgate Latch

Sub-step 1: Manually operate the latch mechanism to ensure it moves freely and is not stuck.
Sub-step 2: If necessary, lubricate the latch mechanism with a silicone-based lubricant.
Tools Required: Lubricant.

5. Reassemble Tailgate

Sub-step 1: Reattach the inner panel securely.
Sub-step 2: Reconnect the negative battery terminal.
Sub-step 3: Test the tailgate to ensure proper operation.