AutoCodes – Generic – P0935

P0935 Code - Hydraulic Pressure Sensor Circuit High

Quick Answer

Line pressure is electronically controlled by the Transmission Control System (TCM) and is measured by the Line Pressure Sensor (LPS). Common causes include Faulty Hydraulic Pressure Sensor, Hydraulic Pressure Sensor harness is open or shorted, Hydraulic Pressure Sensor circuit poor electrical connection. 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
P0935 indicates Hydraulic Pressure Sensor Circuit High.
Common causes
Common causes include Faulty Hydraulic Pressure Sensor, Hydraulic Pressure Sensor harness is open or shorted, Hydraulic Pressure Sensor circuit poor electrical connection.
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.
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Code Popularity 31,068
How popular is this code, among other codes? Low
Table of contents Created and updated by William Orellana on May 11, 2019
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Code P0935 Description

Line pressure is electronically controlled by the Transmission Control System (TCM) and is measured by the Line Pressure Sensor (LPS). The desired line pressure is continuously being compared to the actual line pressure and is regulated by electronically changing the duty cycle of the Pressure Control Solenoid (PCS). The Transmission Control System calculates the desired line pressure based on inputs from the transmission and engine. A calculated torque input to the transmission is used as the primary input to the desired line pressure calculation and is called Torque Based Line Pressure. The Transmission Control Module (TCM) monitors the Hydraulic Pressure Sensor. The TCM sets the OBDII code when the Hydraulic Pressure Sensor is not to factory specifications.
OBDII Code P0935 - Hydraulic Pressure Sensor Circuit High - AutoCodes.com
P0935 Code - Hydraulic Pressure Sensor Circuit High

What are the Possible Causes of the DTC P0935?

  • Faulty Hydraulic Pressure Sensor
  • Hydraulic Pressure Sensor harness is open or shorted
  • Hydraulic Pressure Sensor circuit poor electrical connection

How to Fix the DTC P0935?

Review the 'Possible Causes' above and visually examine the corresponding wiring harness and connectors. Check for damaged components and inspect connector pins for signs of being broken, bent, pushed out, or corroded.

What is the Cost to Diagnose the Code?

Labor: 1.0

To diagnose the P0935 code, it typically requires 1.0 hour of labor. Rates vary by location, vehicle, and shop. Many shops charge between $80–$150 per hour; dealerships and metro areas may be higher, independents may be lower.

Need more information about the P0935 code?

Need more information on how to fix the P0935 code? Get Access to Factory Service Manuals

Need Help with the Code?

Get the P0935 code diagnosed by a professional: Find a repair shop in your area

Information for Specific Makes

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 P0935 Code

1. What are common symptoms of OBDII code P0935 (Hydraulic Pressure Sensor Circuit High)?

- Common symptoms include harsh shifting, transmission slipping, and the transmission going into limp mode.

2. What are the possible causes of OBDII code P0935?

- The code P0935 can be caused by issues like a faulty hydraulic pressure sensor, damaged wiring or connectors, low transmission fluid, or a malfunctioning transmission control module.

3. How serious is OBDII code P0935?

- OBDII code P0935 should be addressed promptly as it can lead to transmission problems and potential damage if left unresolved.

4. How do I diagnose OBDII code P0935?

- Diagnosis involves using a scan tool to retrieve the code, checking the hydraulic pressure sensor and related wiring, inspecting the transmission fluid level and condition, and testing the transmission control module.

5. Can I continue driving with OBDII code P0935 present?

- It is not recommended to drive with OBDII code P0935 present, as it can lead to further damage to the transmission.

6. How can I repair OBDII code P0935?

- Repairing OBDII code P0935 typically involves replacing the faulty hydraulic pressure sensor, repairing or replacing damaged wiring or connectors, ensuring the transmission fluid level is correct, and addressing any issues with the transmission control module.

7. Can a DIYer fix OBDII code P0935?

- Depending on their skill level and access to tools, a knowledgeable DIYer may be able to fix OBDII code P0935 by following repair guides and steps carefully.

8. What should I do if OBDII code P0935 keeps coming back after repairs?

- If the OBDII code P0935 keeps coming back after repairs, further diagnostic testing may be needed to identify any underlying issues that were not addressed initially.

9. Are there any preventive measures to avoid OBDII code P0935?

- Regularly checking and maintaining the transmission system, ensuring proper transmission fluid levels, and addressing any issues promptly can help prevent OBDII code P0935.

10. How much does it cost to repair OBDII code P0935?

- The cost of repairing OBDII code P0935 can vary depending on the exact cause of the issue, the parts needed for repair, and whether the repair is done by a professional technician or DIYer.

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