why am I getting a P0750 code in my Ram 1500 DT (2019-Present)

Ram 1500 DT (2019-Present)

Error Codes

2-4 hours

Time

medium

Difficulty

high

Severity

Error Code: P0750

3 min read

522 words

⚠️ Safety Warning

This issue requires immediate attention. If you are not experienced with automotive repairs, consult a professional mechanic. Working on critical systems can be dangerous.

Problem Statement

Learn how to diagnose and fix P0750 transmission range sensor issues in Ram 1500 DT. Step-by-step guide with diagnostic procedures and repair instructions.

Error Code

P0750

Affected Component

Transmission

Estimated Time

2-4 hours

⚠️ Safety Warnings

Important safety information - read before proceeding

•Disconnect the battery before working on electrical systems.
•Allow the engine to cool before opening the transmission system.

Symptoms

•Check engine light illuminated
•Erratic shifting or failure to shift gears
•Transmission stuck in one gear
•Increased engine RPMs without corresponding vehicle speed
•Poor acceleration or power loss

Diagnostic Steps

1
Scan the vehicle's onboard diagnostic system using an OBD-II scanner to confirm the P0750 code.
2
Inspect the transmission range sensor wiring and connectors for damage or corrosion.
3
Check the transmission fluid level and condition; low or contaminated fluid can cause shifting issues.
4
Test the resistance of the transmission range sensor using a multimeter to ensure it is within specifications.
5
Verify that the transmission control module (TCM) is functioning properly and receiving signal inputs correctly.

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
•Torque wrench
•Electrical tape
•Wire connectors
•Transmission fluid pump

Parts Required

•Transmission range sensor
•Transmission fluid (if low)

Related Faults

Share this solution

Comments

No comments yet

Be the first to share your thoughts

Back to Generation

Diagnostic Steps

1
Scan the vehicle's onboard diagnostic system using an OBD-II scanner to confirm the P0750 code.
2
Inspect the transmission range sensor wiring and connectors for damage or corrosion.
3
Check the transmission fluid level and condition; low or contaminated fluid can cause shifting issues.
4
Test the resistance of the transmission range sensor using a multimeter to ensure it is within specifications.
5
Verify that the transmission control module (TCM) is functioning properly and receiving signal inputs correctly.

Solution

1. Preparation

Gather tools and parts needed for the repair.
Disconnect the battery to avoid electrical shorts.
Allow the vehicle to cool if the engine has been running.

2. Inspect and Repair Wiring

Tools Required: Electrical tape, wire connectors, multimeter.
Inspect the wiring harness connected to the transmission range sensor.
- Look for frayed wires, loose connections, or corrosion.
- Repair any damaged wiring by splicing in new wire or using electrical connectors.
Secure any loose connections with electrical tape or zip ties.

3. Replace the Transmission Range Sensor

Tools Required: Socket set, torque wrench.
Locate the transmission range sensor on the transmission.
Sub-steps:
1. Remove the mounting bolts securing the sensor.
2. Disconnect the electrical connector from the sensor.
3. Install the new transmission range sensor by reversing the removal process.
4. Torque the mounting bolts to the manufacturer’s specifications (typically 8-10 ft-lbs).

4. Refill Transmission Fluid (if necessary)

Tools Required: Transmission fluid pump, funnel.
If the fluid level was low, refill with the manufacturer-recommended transmission fluid.
Check for leaks around the sensor and the transmission pan.

5. Reconnect Battery and Clear Codes

Reconnect the battery terminals.
Use the OBD-II scanner to clear any fault codes from the system.
Start the engine and allow it to reach operating temperature.