Engine-CodesChrysler – P0751 Chrysler

P0751 Chrysler Code - Over Drive Switch Pressed Low

Quick Answer

The P0751 Chrysler code indicates that the overdrive (OD) switch has been pressed low, meaning that the signal sent by the switch to the transmission control module (TCM) is below the expected range. Common causes include Faulty overdrive switch, Wiring or electrical issues related to the switch, Faulty transmission control module (TCM). Severity is High - diagnose this code as soon as possible. Driving is not recommended if the warning light is flashing, the engine runs poorly, or safety-related symptoms are present.

What it means
P0751 Chrysler indicates Over Drive Switch Pressed Low.
Common causes
Common causes include Faulty overdrive switch, Wiring or electrical issues related to the switch, Faulty transmission control module (TCM).
Severity
High - diagnose this code as soon as possible.
Can I drive?
Driving is not recommended if the warning light is flashing, the engine runs poorly, or safety-related symptoms are present.
Table of contents Created and updated by William Orellana on Aug 30, 2024
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Code P0751 Chrysler Description

The P0751 Chrysler code indicates that the overdrive (OD) switch has been pressed low, meaning that the signal sent by the switch to the transmission control module (TCM) is below the expected range. The overdrive function in a vehicle allows for higher speed and better fuel efficiency when driving at highway speeds. When this code is triggered, it can affect the vehicle's performance by potentially causing issues with shifting gears, fuel efficiency, and overall driving experience. The OD switch is typically located on the gear shifter or steering wheel, allowing the driver to manually control when the vehicle shifts into overdrive.

OBDII Code P0751 Chrysler - Over Drive Switch Pressed Low
P0751 Chrysler Code - Over Drive Switch Pressed Low

Common Causes of P0751 Chrysler

  1. Faulty overdrive switch
  2. Wiring or electrical issues related to the switch
  3. Faulty transmission control module (TCM)
  4. Low transmission fluid levels
  5. Internal transmission problems

Symptoms of P0751 Chrysler

  1. Difficulty shifting into overdrive
  2. Harsh or delayed shifting between gears
  3. Decreased fuel efficiency
  4. Illumination of the Check Engine Light
  5. Transmission slipping or jerking

How to Fix P0751 Chrysler

  1. Begin by diagnosing the issue using a scan tool to confirm the P0751 code.
  2. Inspect the overdrive switch for any visible damage or malfunction.
  3. Check the wiring and connections related to the OD switch for any signs of wear or corrosion.
  4. Test the TCM for proper functionality or potential faults.
  5. If necessary, check the transmission fluid levels and condition, topping up or replacing as needed.

Cost to Fix P0751 Chrysler

The cost of repairing a P0751 Chrysler code can vary depending on the specific cause of the issue. Generally, the cost for parts such as a new overdrive switch or TCM can range from $100 to $500. Labor costs can add an additional $100 to $300, with total repair costs falling between $200 to $800. Keep in mind that these estimates are rough and actual costs may vary based on location and the specific vehicle being serviced. It's recommended to get quotes from different auto repair shops to find the best deal.

Tech Notes for P0751 Chrysler

Over Drive (O/D) switch value has not changed for over 5 minutes

When is the Code Detected?

The P0751 code is detected when the Over Drive (O/D) switch value has not changed for over 5 minutes

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About the author: William Orellana is a Master Mechanic and Mechanical Engineer with over 30 years of experience diagnosing and repairing vehicles. Learn more about his background.

Frequently Asked Questions about P0751 Chrysler Code

1. What does the OBDII code P0751 mean on a Chrysler vehicle?

P0751 indicates a problem with the shift solenoid “A” performance or stuck off condition, which affects the transmission's ability to shift gears properly.

2. What are the common symptoms of the P0751 code on a Chrysler?

Symptoms may include erratic shifting, transmission slipping, inability to shift into certain gears, reduced fuel efficiency, or the transmission being stuck in limp mode.

3. What causes the P0751 code on a Chrysler?

Common causes include a faulty shift solenoid, low transmission fluid, worn-out transmission components, dirty or contaminated transmission fluid, or wiring and electrical issues related to the solenoid.

4. Can driving with the P0751 code damage my Chrysler’s transmission?

Yes, driving with this code for an extended period can lead to further transmission damage, increased wear on components, and potential safety concerns.

5. How can I diagnose the P0751 code on a Chrysler?

Diagnose the issue by checking the transmission fluid level and condition, inspecting wiring and connectors for damage, and testing the functionality of the shift solenoid using a multimeter or scan tool.

6. How do I fix the P0751 code on my Chrysler?

Repairs may involve replacing the faulty shift solenoid, flushing and replacing the transmission fluid, repairing damaged wiring, or, in severe cases, rebuilding the transmission.

7. Is a low transmission fluid level a common cause of the P0751 code in Chrysler vehicles?

Yes, insufficient or contaminated transmission fluid can cause improper solenoid operation and trigger the code.

8. What does “Over Drive Switch Pressed Low” mean in relation to the P0751 code?

It refers to a possible problem with the overdrive function being affected, often linked to the transmission solenoids or fluid issues.

9. How much does it typically cost to repair the P0751 code on a Chrysler?

Repair costs can range from $150 to $400 for solenoid replacement, while more extensive repairs like transmission rebuilding may cost upwards of $1,500.

10. Can a bad transmission control module (TCM) cause the P0751 code on a Chrysler?

Yes, a malfunctioning TCM can fail to properly manage the shift solenoids, potentially triggering this code.

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