AutoCodes – GMC – P316B GMC

P316B GMC 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 GMC 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 369

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

What does this mean?

What are the Possible Causes of the DTC P316B GMC?

Faulty Secondary Fuel System

How to Fix the DTC P316B GMC?

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 GMC 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 P316B GMC code?

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

Need Help with the Code?

Get the P316B GMC 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 GMC Code

1. What are the common symptoms of OBDII code P316B in a GMC vehicle?

- Common symptoms include rough idling, poor acceleration, decreased fuel efficiency, and possible stalling.

2. What does the OBDII code P316B GMC mean?

- OBDII code P316B indicates that the Secondary Fuel System Requests Signal Message Counter is reporting an incorrect value.

3. What are the possible causes of OBDII code P316B in a GMC vehicle?

- Potential causes include a faulty fuel pump, issues with the fuel pressure sensor, wiring problems, or a malfunctioning fuel delivery system.

4. How can I diagnose the OBDII code P316B in my GMC vehicle?

- Diagnosis typically involves using an OBDII scanner to read the code, checking the fuel system components for issues, and inspecting the wiring for any damage.

5. Can I continue driving my GMC with the OBDII code P316B present?

- It is not recommended to drive your vehicle with this code present, as it can lead to further damage and potential safety hazards.

6. Are there any DIY repair tips for addressing OBDII code P316B in a GMC?

- DIY repair tips may include checking and replacing the fuel pump, inspecting and cleaning the fuel pressure sensor, and ensuring all wiring connections are secure.

7. How much does it typically cost to repair OBDII code P316B in a GMC vehicle?

- Repair costs can vary depending on the specific issue causing the code, but it is advisable to budget for potential fuel system repairs or component replacements.

8. How urgent is it to address the OBDII code P316B in my GMC?

- It is recommended to address this code as soon as possible to prevent further damage to the fuel system and ensure optimal vehicle performance.

9. Can resetting the OBDII code P316B in my GMC make it go away permanently?

- Resetting the code may temporarily clear the warning light, but if the underlying issue is not addressed, the code is likely to reappear.

10. Is it necessary to take my GMC to a professional mechanic for OBDII code P316B repairs?

- While some DIY repairs may be possible, it is advisable to consult a professional mechanic for accurate diagnosis and proper repair of the issue to ensure long-term reliability.