AutoCodes – Chevrolet – P316B Chevrolet

P316B Chevrolet Code - Secondary Fuel System Requests Signal Message Counter Incorrect

Quick Answer

Control modules connected to the serial data circuits monitor the communication during normal vehicle operation. Common causes include Faulty Secondary Fuel System. 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: P316B Chevrolet indicates Secondary Fuel System Requests Signal Message Counter Incorrect.
Common causes: Common causes include Faulty Secondary Fuel System.
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 630

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 Sep 29, 2022

Description
Possible Causes
How To Fix
Cost to Diagnose
FAQs
Comments
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Code P316B Chevrolet Description

Control modules connected to the serial data circuits monitor the communication during normal vehicle operation. Operating information and commands are exchanged among the control modules. Each module on the serial data circuit maintains a transmit error counter and a receive error counter. The counter values increase with detected errors and decrease with error-free messages. The Diagnostic Trouble Code (DTC) will be set when the Secondary Fuel System Requests Signal Message Counter Incorrect.

OBDII Code P316B Chevrolet - Secondary Fuel System Requests Signal Message Counter Incorrect - AutoCodes.com — P316B Chevrolet Code - Secondary Fuel System Requests Signal Message Counter Incorrect

What does this mean?

What are the Possible Causes of the DTC P316B Chevrolet?

Faulty Secondary Fuel System

How to Fix the DTC P316B 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.

What is the Cost to Diagnose the Code?

Labor: 1.0

To diagnose the P316B 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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Need more information on how to fix the P316B Chevrolet code? Get Access to Factory Service Manuals

Need Help with the Code?

Get the P316B Chevrolet code diagnosed by a professional: Find a repair shop in your area

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 P316B Chevrolet Code

What does the OBDII code P316B mean for a Chevrolet vehicle?

The P316B code indicates that the Secondary Fuel System Requests Signal Message Counter is incorrect, suggesting a communication issue within the secondary fuel system.

What are the common symptoms associated with the P316B code?

Common symptoms include the Check Engine Light being illuminated, reduced engine performance, rough idling, or difficulty starting the engine.

What might cause the P316B code to trigger?

Causes can include faulty wiring or connectors in the fuel system, a malfunctioning fuel pump, issues with the fuel control module, or software glitches in the engine control unit (ECU).

Can I drive my Chevrolet with the P316B code?

While it may be possible to drive the vehicle, it's not recommended as it can lead to further damage or affect fuel efficiency. Addressing the code promptly is advised.

What are some potential repair tips for the P316B code?

Inspect and repair any damaged wiring or connectors, check the fuel pump operation, update or reprogram the ECU software, and ensure that the fuel control module is functioning correctly.

How can I diagnose the P316B code accurately?

Use an OBD-II scanner to read the code, examine related live data for the secondary fuel system, and perform visual inspections on wiring and components associated with fuel management.

Is the P316B code specific to certain Chevrolet models?

While the P316B code can appear in various Chevrolet models, it's not exclusive to them and may also be present in other GM vehicles with similar fuel systems.

How much does it typically cost to repair the issues related to the P316B code?

Repair costs can vary widely depending on the cause but may range from $100 to over $1,000, depending on whether it requires simple wiring repairs or a more complex ECU replacement or reprogramming.

Can a faulty fuel injector cause the P316B code?

Yes, a malfunctioning fuel injector can affect the secondary fuel system's performance and may contribute to triggering the P316B code.

Will clearing the P316B code reset everything?

Clearing the code may temporarily turn off the Check Engine Light, but if the underlying issue is not resolved, the code will likely return after a short period.