AutoCodes – Generic – P2816

P2816 Code - Pressure Control Solenoid 'H'

Quick Answer

The Transmission Control Module (TCM) uses the vehicle speed signal to determine the actual gear position (1st, 2nd, 3rd, 4th. Common causes include Faulty Pressure Control Solenoid 'H', Pressure Control Solenoid 'H' harness is open or shorted, Pressure Control Solenoid 'H' 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: P2816 indicates Pressure Control Solenoid 'H'.
Common causes: Common causes include Faulty Pressure Control Solenoid 'H', Pressure Control Solenoid 'H' harness is open or shorted, Pressure Control Solenoid 'H' 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 4,431

How popular is this code, among other codes? Low

Repair Importance Level

Urgent (Diagnose now) (3 / 3)

Repair Difficulty Level

Advanced (Pro) (3 / 3)

What is this?

Table of contents Created and updated by William Orellana on Feb 16, 2019

Description
Possible Causes
How To Fix
Cost to Diagnose
Comments
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Code P2816 Description

The Transmission Control Module (TCM) uses the vehicle speed signal to determine the actual gear position (1st, 2nd, 3rd, 4th. 5th or 6th gear). Then the TCM compares the actual gear with the shift schedule in the TCM memory to detect shift solenoid valves and valve body mechanical problems.

OBDII Code P2816 - Pressure Control Solenoid 'H' - AutoCodes.com — P2816 Code - Pressure Control Solenoid 'H'

What does this mean?

What are the Possible Causes of the DTC P2816?

Faulty Pressure Control Solenoid 'H'
Pressure Control Solenoid 'H' harness is open or shorted
Pressure Control Solenoid 'H' circuit poor electrical connection
Blockage in Transmission Valve Body

How to Fix the DTC P2816?

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 P2816 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.