P1591 2015 Chevrolet Silverado Code - Body Control Module Engine Speed Request Signal Message Counter Incorrect
Quick Answer
The P1591 diagnostic trouble code (DTC) for a 2015 Chevrolet Silverado indicates that the Body Control Module (BCM) has detected an incorrect message counter for the engine speed request signal. Common causes include Faulty engine speed sensor, Wiring or connection issues related to the engine speed signal, Communication error between the BCM and other modules. 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 2015 Chevrolet Silverado indicates Body Control Module Engine Speed Request Signal Message Counter Incorrect.
- Common causes
- Common causes include Faulty engine speed sensor, Wiring or connection issues related to the engine speed signal, Communication error between the BCM and other modules.
- 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 P1591 2015 Chevrolet Silverado Description
The P1591 diagnostic trouble code (DTC) for a 2015 Chevrolet Silverado indicates that the Body Control Module (BCM) has detected an incorrect message counter for the engine speed request signal. The BCM is a crucial component of the vehicle's electronic control system, responsible for managing various functions such as lighting, security, and communication between different modules. In this case, the BCM is not receiving the expected number of messages related to the engine speed request signal, which can lead to performance issues and potentially affect other systems.
Common Causes of P1591 2015 Chevrolet Silverado
- Faulty engine speed sensor.
- Wiring or connection issues related to the engine speed signal.
- Communication error between the BCM and other modules.
- Malfunctioning BCM.
- Software glitch or programming error.
Symptoms of P1591 2015 Chevrolet Silverado
- Engine misfires or hesitation during acceleration.
- Rough idling or stalling.
- Check engine light illuminated on the dashboard.
- Reduced engine power or performance.
- Difficulty starting the vehicle.
How to Fix P1591 2015 Chevrolet Silverado
- Diagnose the issue using a professional diagnostic scan tool to pinpoint the exact cause of the incorrect message counter.
- Inspect the engine speed sensor and related wiring for any signs of damage or malfunction.
- Check the communication between the BCM and other modules to ensure proper functioning.
- If necessary, replace the faulty sensor, repair wiring issues, or reprogram the BCM to correct the message counter error.
- Clear the DTC and test drive the vehicle to verify that the issue has been resolved.
Cost to Fix P1591 2015 Chevrolet Silverado
The typical repair costs for addressing a P1591 DTC on a 2015 Chevrolet Silverado can vary depending on the specific cause of the issue. In general, the cost of parts such as a new engine speed sensor or wiring repairs can range from $100 to $300. Labor costs at auto repair shops typically range from $80 to $150 per hour, with the total repair bill potentially amounting to $200 to $500 or more. It is advisable to consult with a professional mechanic to get an accurate estimate based on the specific diagnosis and repair needed for your vehicle.
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Frequently Asked Questions about P1591 2015 Chevrolet Silverado Code
1. What are common symptoms of OBDII code P1591 in a 2015 Chevrolet Silverado?
- Common symptoms include engine stalling, rough idling, poor acceleration, and issues with the vehicle's electronic systems.
2. What causes the Body Control Module Engine Speed Request Signal Message Counter Incorrect code in a 2015 Chevrolet Silverado?
- The P1591 code is typically triggered by a communication error between the body control module and the engine control module.
3. How serious is the P1591 code in a 2015 Chevrolet Silverado?
- While the vehicle may still operate, ignoring this code can lead to performance issues and potential safety concerns. It is advisable to address the underlying problem promptly.
4. Can a DIYer fix the P1591 code in a 2015 Chevrolet Silverado?
- Depending on your experience and tools, you may be able to address this code by checking for loose connections, damaged wiring, or faulty modules. However, professional diagnosis is recommended for an accurate repair.
5. What are some repair tips for OBDII code P1591 in a 2015 Chevrolet Silverado?
- Inspect the wiring harness for any damage, ensure all connections are secure, and consider resetting the fault codes after addressing any issues found.
6. How much does it cost to repair the Body Control Module Engine Speed Request Signal Message Counter Incorrect code in a 2015 Chevrolet Silverado?
- Repair costs can vary widely based on the extent of the issue and whether you choose to address it yourself or take it to a professional mechanic. It's advisable to get a diagnosis and estimate from a trusted auto repair shop.
7. Can driving with the P1591 code in a 2015 Chevrolet Silverado cause further damage?
- Continuing to drive with this code present can potentially lead to more severe issues with the vehicle's performance and electronic systems. It's recommended to address the problem promptly.
8. How long does it take to repair the P1591 code in a 2015 Chevrolet Silverado?
- The repair time can vary based on the specific cause of the code. Simple fixes like reconnecting loose wires may take a short time, while more complex issues may require several hours or more.
9. Are there any recalls or service bulletins related to OBDII code P1591 in a 2015 Chevrolet Silverado?
- It's recommended to check with your nearest Chevrolet dealership or visit the NHTSA website to see if there are any relevant recalls or service bulletins related to the P1591 code for your specific model year.
10. Will the P1591 code in a 2015 Chevrolet Silverado cause the vehicle to fail an emissions test?
- Yes, the presence of this code can indicate a problem with the vehicle's emissions control systems, which may cause it to fail an emissions test. It's best to address the underlying issue before undergoing an emissions test.
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