AutoCodesChevrolet – P1810 Chevrolet

P1810 Chevrolet Code - Transmission Fluid Pressure Valve Position Switch Circuit

Quick Answer

The automatic Transmission Fluid Pressure (TFP) manual valve position switch consists of five pressure switches (two normally-closed and three normally-open) and a Transmission Fluid Temperature (TFT) sensor combined into one unit. Common causes include Faulty Automatic Transmission Fluid Pressure (TFP) Manual Valve Position Switch, TFP Valve Position Switch harness is open or shorted, TFP Valve Position Switch 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
P1810 Chevrolet indicates Transmission Fluid Pressure Valve Position Switch Circuit.
Common causes
Common causes include Faulty Automatic Transmission Fluid Pressure (TFP) Manual Valve Position Switch, TFP Valve Position Switch harness is open or shorted, TFP Valve Position Switch 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.
AI answers can be wrong. Verify repairs with testing. Open full chat
Code Popularity 130,262
How popular is this code, among other codes? Medium
Table of contents Created and updated by William Orellana on Sep 20, 2019
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Code P1810 Chevrolet Description

The automatic Transmission Fluid Pressure (TFP) manual valve position switch consists of five pressure switches (two normally-closed and three normally-open) and a Transmission Fluid Temperature (TFT) sensor combined into one unit. The combined unit mounts on the valve body.
The Powertrain Control Module (PCM) supplies ignition voltage for each range signal. By grounding one or more of the circuits through various combinations of the pressure switches, the PCM detects which manual valve position you select. The PCM compares the actual voltage combination of the switches to a TFP manual valve position switch combination table stored in memory.
The TFP manual valve position switch cannot distinguish between PARK and NEUTRAL because the monitored valve body pressures are identical. With the engine OFF and the ignition switch in the RUN position, the TFP manual valve position switch indicates PARK or NEUTRAL. Disconnecting the AT inline 20-way connector removes the ground potential for the three range signals to the PCM. In this case, with the engine OFF, and the ignition switch in the RUN position, D2 will be indicated.
OBDII Code P1810 Chevrolet - Transmission Fluid Pressure Valve Position Switch Circuit - AutoCodes.com
P1810 Chevrolet Code - Transmission Fluid Pressure Valve Position Switch Circuit

What are the Possible Causes of the DTC P1810 Chevrolet?

  • Faulty Automatic Transmission Fluid Pressure (TFP) Manual Valve Position Switch
  • TFP Valve Position Switch harness is open or shorted
  • TFP Valve Position Switch circuit poor electrical connection

How to Fix the DTC P1810 Chevrolet?

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.

Code Tech Notes

What is the Cost to Diagnose the Code?

Labor: 1.0

To diagnose the P1810 Chevrolet 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.

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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 P1810 Chevrolet Code

1. What are the common symptoms of OBDII code P1810 in a Chevrolet related to the Transmission Fluid Pressure Valve Position Switch Circuit?

The common symptoms include harsh shifting, transmission slipping, poor fuel economy, and the transmission going into limp mode.

2. What are some potential causes of OBDII code P1810 in a Chevrolet?

Potential causes of this code can include a faulty transmission fluid pressure (TFP) switch, wiring issues, low transmission fluid levels, or a defective transmission control module (TCM).

3. How can I diagnose OBDII code P1810 in my Chevrolet?

Diagnosis typically involves using a scan tool to retrieve the code, checking the transmission fluid level and condition, inspecting the TFP switch and its circuit, and testing the TCM for proper operation.

4. Can I continue driving my Chevrolet with OBDII code P1810 present?

It is not recommended to continue driving with this code present, as it can lead to further transmission damage or unsafe driving conditions. It is best to address the issue promptly.

5. What are some tips for repairing OBDII code P1810 in a Chevrolet?

Repair tips may include replacing the faulty TFP switch, repairing any damaged wiring, ensuring proper transmission fluid levels, and resetting the TCM after repairs are made.

6. Should I attempt to repair OBDII code P1810 in my Chevrolet myself?

While some DIY enthusiasts may be able to address this code with proper tools and knowledge, it is recommended to consult a professional mechanic or dealership for accurate diagnosis and repair.

7. How much does it typically cost to repair OBDII code P1810 in a Chevrolet?

The cost of repairs can vary depending on the exact cause of the code, parts needed, labor rates, and location. It is advisable to get quotes from different mechanics or dealerships for an accurate estimate.

8. Will resetting the OBDII code P1810 in my Chevrolet make it go away permanently?

Simply resetting the code without addressing the underlying issue will not make it go away permanently. The root cause of the problem must be diagnosed and repaired for the code to stay cleared.

9. Can a bad TFP switch be cleaned or repaired, or does it need to be replaced?

In most cases, a faulty TFP switch will need to be replaced rather than cleaned or repaired. This ensures proper functioning and reliability of the transmission system.

10. How can I prevent OBDII code P1810 from appearing in my Chevrolet in the future?

Regular maintenance of the transmission system, such as checking fluid levels, ensuring proper wiring connections, and addressing any issues promptly, can help prevent the recurrence of this code.

Discuss the causes and fixes for P1810 Chevrolet OBDII Code

  • I have a 2000 chevy blazer 4wd the code that is coming up is P1810 but when driving the 2nd and 3rd it hard as well so can you tell me what I need to get to fix the problem ?????????????

  • You could start by inspecting the transmission fluid level and condition. If the fluid smells burnt, then you may have a transmission mechanical problems and it may need to get rebuild.

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