AutoCodes – Chevrolet – P1591 2016 Chevrolet Silverado

P1591 2016 Chevrolet Silverado Code - Body Control Module Engine Speed Request 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 Body Control Module, Body Control Module harness is open or shorted, Body Control Module 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: P1591 2016 Chevrolet Silverado indicates Body Control Module Engine Speed Request Signal Message Counter Incorrect.
Common causes: Common causes include Faulty Body Control Module, Body Control Module harness is open or shorted, Body Control Module 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 227

How popular is this code, among other codes? Low

Repair Importance Level

Urgent (Diagnose now) (3 / 3)

Repair Difficulty Level

Advanced (Pro) (3 / 3)

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Table of contents Created and updated by William Orellana on Sep 28, 2022

Description
Possible Causes
How To Fix
Cost to Diagnose
FAQs
Comments
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Code P1591 2016 Chevrolet Silverado 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 Body Control Module Engine Speed Request Signal Message Counter is Incorrect.

OBDII Code P1591 2016 Chevrolet Silverado - Body Control Module Engine Speed Request Signal Message Counter Incorrect - AutoCodes.com — P1591 2016 Chevrolet Silverado Code - Body Control Module Engine Speed Request Signal Message Counter Incorrect

What does this mean?

What are the Possible Causes of the DTC P1591 2016 Chevrolet Silverado?

Faulty Body Control Module
Body Control Module harness is open or shorted
Body Control Module circuit poor electrical connection

How to Fix the DTC P1591 2016 Chevrolet Silverado?

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 P1591 2016 Chevrolet Silverado 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 P1591 2016 Chevrolet Silverado code?

Need more information on how to fix the P1591 2016 Chevrolet Silverado code? Get Access to Factory Service Manuals

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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 P1591 2016 Chevrolet Silverado Code

1. What are the common symptoms of OBDII code P1591 in a 2016 Chevrolet Silverado?

- Common symptoms include engine stalling, rough idling, poor acceleration, and illuminated warning lights on the dashboard.

2. What does the OBDII code P1591 on a 2016 Chevrolet Silverado indicate?

- This code signifies that the Body Control Module (BCM) has detected an incorrect engine speed request signal message counter.

3. What are the possible causes of OBDII code P1591 in a 2016 Chevrolet Silverado?

- Potential causes include a faulty Body Control Module, wiring issues, poor electrical connections, or a damaged engine speed sensor.

4. How can I diagnose the OBDII code P1591 in my 2016 Chevrolet Silverado?

- Diagnosing this code typically involves using a diagnostic scanner to retrieve the specific error codes, checking the BCM for any visible damage, and inspecting the wiring and connections related to the engine speed sensor.

5. Can I continue driving my 2016 Chevrolet Silverado with OBDII code P1591?

- It is not recommended to drive the vehicle with this code present, as it can lead to potential performance issues and further damage to the vehicle if left unresolved.

6. How can I repair OBDII code P1591 in my 2016 Chevrolet Silverado?

- Repair options may include replacing the Body Control Module, repairing any damaged wiring or connections, or addressing issues with the engine speed sensor.

7. Is it possible to reset OBDII code P1591 in a 2016 Chevrolet Silverado without repairs?

- While clearing the error code may temporarily turn off the warning light, the underlying issue causing the code will persist unless properly diagnosed and repaired.

8. Are there any common troubleshooting tips for OBDII code P1591 in a 2016 Chevrolet Silverado?

- Checking and cleaning electrical connections, inspecting for visible damage, and ensuring proper sensor functionality are good initial troubleshooting steps.

9. How much does it typically cost to repair OBDII code P1591 in a 2016 Chevrolet Silverado?

- Repair costs can vary depending on the specific issue causing the code, but expenses may include parts replacement, labor costs, and diagnostic fees.

10. Can a DIY enthusiast fix OBDII code P1591 in a 2016 Chevrolet Silverado?

- While some basic troubleshooting steps can be performed by DIY enthusiasts, diagnosing and repairing this code may require specialized tools and expertise, so professional assistance is often recommended.