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Engine-Codes – Dodge – P0948 Dodge

P0948 Dodge Code - Hydraulic Pump Relay Circuit High

Quick Answer

The P0948 code for Dodge vehicles specifically refers to a Hydraulic Pump Relay Circuit High. Common causes include Faulty hydraulic pump relay, Damaged wiring or connectors in the relay circuit, Malfunctioning PCM. 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
P0948 Dodge indicates Hydraulic Pump Relay Circuit High.
Common causes
Common causes include Faulty hydraulic pump relay, Damaged wiring or connectors in the relay circuit, Malfunctioning PCM.
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.
What is this?
Table of contents Created and updated by William Orellana on Sep 07, 2024
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Code P0948 Dodge Description

The P0948 code for Dodge vehicles specifically refers to a Hydraulic Pump Relay Circuit High. This means that the powertrain control module (PCM) has detected a higher than normal voltage signal from the hydraulic pump relay circuit. The hydraulic pump relay is responsible for controlling the hydraulic pressure within the transmission system. When the PCM detects a high voltage signal, it indicates a malfunction in the relay circuit, which can lead to issues with the transmission's hydraulic system.

OBDII Code P0948 Dodge - Hydraulic Pump Relay Circuit High
P0948 Dodge Code - Hydraulic Pump Relay Circuit High

Common Causes of P0948 Dodge

  1. Faulty hydraulic pump relay
  2. Damaged wiring or connectors in the relay circuit
  3. Malfunctioning PCM
  4. Transmission fluid pressure sensor issues
  5. Low transmission fluid levels

Symptoms of P0948 Dodge

  1. Harsh or delayed gear shifts
  2. Transmission slipping
  3. Transmission overheating
  4. Illuminated check engine light
  5. Transmission fluid leaks

How to Fix P0948 Dodge

  1. Begin by checking the transmission fluid level and condition. Top up the fluid if necessary.
  2. Inspect the hydraulic pump relay and its circuit for any visible damage or corrosion. Replace the relay if necessary.
  3. Check the wiring and connectors in the relay circuit for any breaks or loose connections. Repair or replace as needed.
  4. Test the transmission fluid pressure sensor for proper operation. Replace if faulty.
  5. Clear the diagnostic trouble codes from the PCM and test drive the vehicle to ensure the issue has been resolved.

Cost to Fix P0948 Dodge

The cost of repairing a P0948 code for a Dodge vehicle can vary depending on the specific cause of the issue and the required repairs. In general, the cost of replacing a faulty hydraulic pump relay can range from $100 to $300, including parts and labor. Additional costs may be incurred if there are wiring or sensor issues that need to be addressed. It's important to note that diagnostic time and labor rates at auto repair shops can vary, so it's advisable to check with local shops for a more accurate estimate based on your location and vehicle type.

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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 P0948 Dodge Code

1. What are the common symptoms of OBDII code P0948 in a Dodge related to the Hydraulic Pump Relay Circuit High?

- Common symptoms include illuminated Check Engine light, harsh shifting, transmission issues, and potential loss of hydraulic pump operation.

2. What are the possible causes of OBDII code P0948 indicating a Hydraulic Pump Relay Circuit High in a Dodge?

- Possible causes may include a faulty hydraulic pump relay, damaged wiring or connectors, low transmission fluid levels, or a malfunctioning hydraulic pump.

3. How can I diagnose the source of OBDII code P0948 in my Dodge with a Hydraulic Pump Relay Circuit High issue?

- Diagnostic steps may involve checking the hydraulic pump relay, inspecting wiring for damage, testing connector integrity, verifying transmission fluid levels, and assessing the hydraulic pump's functionality.

4. Can a DIY enthusiast repair OBDII code P0948 in a Dodge related to the Hydraulic Pump Relay Circuit High?

- While some aspects of the repair, such as checking wiring and connectors, can be done by a DIYer, diagnosing and replacing components like the hydraulic pump relay may require professional equipment and expertise.

5. What are the potential risks of driving with OBDII code P0948 triggered in a Dodge due to a Hydraulic Pump Relay Circuit High issue?

- Continuing to drive with this issue may lead to transmission damage, poor shifting performance, and potential safety hazards if the hydraulic pump fails to operate correctly.

6. Is it safe to clear the OBDII code P0948 related to the Hydraulic Pump Relay Circuit High in my Dodge without addressing the underlying problem?

- Clearing the code without addressing the root cause may temporarily turn off the Check Engine light, but it will not fix the issue causing the fault code, potentially leading to further problems down the line.

7. How much does it typically cost to repair OBDII code P0948 in a Dodge caused by a Hydraulic Pump Relay Circuit High fault?

- Repair costs can vary depending on the exact cause of the issue, but expenses may include parts like the hydraulic pump relay and labor for diagnosis and replacement, with total costs ranging from a few hundred to over a thousand dollars.

8. Are there any preventive maintenance tips to avoid encountering OBDII code P0948 due to a Hydraulic Pump Relay Circuit High problem in a Dodge?

- Regularly checking transmission fluid levels, addressing any leaks promptly, and ensuring proper maintenance of the hydraulic pump and related components can help prevent issues leading to this fault code.

9. Can extreme weather conditions or rough driving terrain contribute to triggering OBDII code P0948 related to the Hydraulic Pump Relay Circuit High in a Dodge?

- Yes, harsh driving conditions, extreme temperatures, or off-road driving can potentially impact the hydraulic pump relay and associated components, leading to faults like code P0948.

10. How long does it typically take for a mechanic to diagnose and repair OBDII code P0948 caused by a Hydraulic Pump Relay Circuit High issue in a Dodge?

- The diagnosis and repair process can vary based on the exact cause of the fault, but it may take a few hours to a full day to identify the issue, source the necessary parts, and complete the repair successfully.

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