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P2810 Toyota Code - Pressure Control Solenoid 'G' Electrical

Quick Answer

Changing from 1st to 6th is performed by the Engine Control Module (ECM) turning shift solenoid valves SL1, SL2, SL3, SL4, and SL on and off. Common causes include Low transmission fluid level, Dirty transmission fluid, Faulty Pressure Control Solenoid 'G' valve (Shift Solenoid Valve SL4). 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
P2810 Toyota indicates Pressure Control Solenoid 'G' Electrical.
Common causes
Common causes include Low transmission fluid level, Dirty transmission fluid, Faulty Pressure Control Solenoid 'G' valve (Shift Solenoid Valve SL4).
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 12,440
How popular is this code, among other codes? Low
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Table of contents Created and updated by William Orellana on Sep 12, 2022
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Code P2810 Toyota Description

Changing from 1st to 6th is performed by the Engine Control Module (ECM) turning shift solenoid valves SL1, SL2, SL3, SL4, and SL on and off. If an open or short circuit occurs in any of the shift solenoid valves, the ECM controls the remaining normal shift solenoid valves to allow the vehicle to be operated.
The ECM commands gear shifts by turning the shift solenoid valves on or off. When there is an open or short circuit in any shift solenoid valve circuit, the ECM detects the problem and illuminates the MIL and stores the Diagnostic Trouble Code (DTC). And the ECM performs the fail-safe function and turns the other normal shift solenoid valves on or off. (In case of an open or short circuit, the ECM stops sending current to the circuit.)
OBDII Code P2810 Toyota - Pressure Control Solenoid 'G' Electrical - AutoCodes.com
P2810 Toyota Code - Pressure Control Solenoid 'G' Electrical
What does this mean?

What are the Possible Causes of the DTC P2810 Toyota?

  • Low transmission fluid level
  • Dirty transmission fluid
  • Faulty Pressure Control Solenoid 'G' valve (Shift Solenoid Valve SL4)
  • Pressure Control Solenoid 'G' valve harness is open or shorted
  • Pressure Control Solenoid 'G' valve circuit poor electrical connection
  • Faulty Engine Control Module (ECM)

How to Fix the DTC P2810 Toyota?

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 does this mean?

Code Tech Notes

When a transmission solenoid malfunction, in most cases the problem is not the electrical part of the solenoid; the problem is foreign material obstructing the mechanical function of the solenoid or the flow of the fluid through the transmission valve body. If the transmission fluid is dirty, it's recommended to change the transmission fluid and if possible, remove the transmission pan for further diagnosis. Excessive debris or metal particles on the transmission pan could be an indication that there is a mechanical transmission failure, and that the transmission will need to be rebuilt or replaced.

What is the Cost to Diagnose the Code?

Labor: 1.0

To diagnose the P2810 Toyota 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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Information for Specific Toyota Models

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 P2810 Toyota Code

What does the OBDII code P2810 mean for a Toyota vehicle?

Code P2810 indicates an electrical issue with Pressure Control Solenoid 'G,' which is part of the transmission system responsible for regulating hydraulic pressure.

What are the common symptoms of the P2810 code in a Toyota?

Symptoms may include transmission shifting problems, reduced fuel efficiency, harsh shifting, or the vehicle going into limp mode.

What causes the P2810 code to appear in a Toyota?

Common causes include a faulty pressure control solenoid, damaged wiring or connectors, low transmission fluid, or a malfunctioning transmission control module (TCM).

Can low transmission fluid trigger the P2810 code?

Yes, insufficient or dirty transmission fluid can cause solenoid issues and trigger the P2810 code.

How can I diagnose the P2810 code on a Toyota?

Start by inspecting the solenoid's wiring and connectors for damage or corrosion, checking the transmission fluid level and condition, and testing the solenoid using a multimeter.

Can the P2810 code damage my Toyota’s transmission?

If unresolved, the code can lead to improper pressure regulation, causing increased wear on transmission components over time.

What should I check first when troubleshooting the P2810 code?

Begin by inspecting the wiring and connectors for the solenoid, followed by checking the transmission fluid level and condition.

How much does it cost to fix the P2810 code on a Toyota?

Repairs can range from $150 to $400 for solenoid replacement, but costs will vary based on labor rates and the extent of wiring or transmission issues.

Is it safe to drive with the P2810 code active in my Toyota?

Driving with this code may lead to transmission performance issues, so it’s best to address it promptly to avoid further damage.

Can replacing the pressure control solenoid fix the P2810 code?

Yes, if the solenoid is faulty, replacing it will often resolve the issue, provided there are no additional wiring or transmission problems.

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