B048E 2017 Chevrolet Silverado Code - Auxiliary Heater System Malfunction
Quick Answer
The Heating, Ventilation, and Air Conditioning (HVAC) Control Module sends a low side pulse width modulation (PWM) signal to request electrical auxiliary heater operation if the interior temperature is too low and additional heat is required. Common causes include Faulty Electrical Auxiliary Heater, Electrical Auxiliary Heater harness is open or shorted, Electrical Auxiliary Heater circuit poor electrical connection. Severity is Low - monitor the vehicle and repair when practical. The vehicle can usually be driven if no severe symptoms are present, but symptoms should be checked before extended driving.
- What it means
- B048E 2017 Chevrolet Silverado indicates Auxiliary Heater System Malfunction.
- Common causes
- Common causes include Faulty Electrical Auxiliary Heater, Electrical Auxiliary Heater harness is open or shorted, Electrical Auxiliary Heater circuit poor electrical connection.
- Severity
- Low - monitor the vehicle and repair when practical.
- Can I drive?
- The vehicle can usually be driven if no severe symptoms are present, but symptoms should be checked before extended driving.
Code B048E 2017 Chevrolet Silverado Description
What are the Possible Causes of the DTC B048E 2017 Chevrolet Silverado?
- Faulty Electrical Auxiliary Heater
- Electrical Auxiliary Heater harness is open or shorted
- Electrical Auxiliary Heater circuit poor electrical connection
- Faulty Heating, Ventilation, and Air Conditioning (HVAC) Control Module
How to Fix the DTC B048E 2017 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.
Code Tech Notes
B048E:06 Auxiliary Heater System Malfunction Low Voltage/Open
What is the Cost to Diagnose the Code?
Labor: 1.0
To diagnose the B048E 2017 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 B048E 2017 Chevrolet Silverado code?
Need more information on how to fix the B048E 2017 Chevrolet Silverado code? Get Access to Factory Service Manuals
Need Help with the Code?
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Frequently Asked Questions about B048E 2017 Chevrolet Silverado Code
1. What does OBDII code B048E on a 2017 Chevrolet Silverado indicate?
The code B048E on a 2017 Chevrolet Silverado signifies a malfunction in the Auxiliary Heater System.
2. What are the common symptoms of a B048E code in a 2017 Chevrolet Silverado?
Common symptoms include the auxiliary heater system not working properly, reduced heating performance, and potentially cold air blowing from the vents.
3. What are the possible causes of the Auxiliary Heater System Malfunction (B048E) in a 2017 Chevrolet Silverado?
Potential causes of the B048E code can include a faulty auxiliary heater control module, wiring issues, blown fuses, or a malfunctioning heater core.
4. How can I diagnose the B048E code in my 2017 Chevrolet Silverado?
Diagnosing the B048E code may involve using an OBDII scanner to retrieve the code, inspecting the auxiliary heater system components, checking for wiring faults, and testing the auxiliary heater control module.
5. Can I continue to drive my 2017 Chevrolet Silverado with a B048E code?
It is not recommended to drive the vehicle with a B048E code as it can lead to poor heating performance and potential further damage to the auxiliary heater system.
6. How can I repair the Auxiliary Heater System Malfunction (B048E) in my 2017 Chevrolet Silverado?
Repairing the B048E code may involve replacing the faulty auxiliary heater control module, repairing damaged wiring, checking and replacing fuses, or addressing any other identified issues causing the malfunction.
7. Is it possible to reset the B048E code in a 2017 Chevrolet Silverado without fixing the underlying issue?
While clearing the code may temporarily turn off the warning light, it is crucial to address the root cause of the issue to prevent the code from reoccurring and ensure the proper functioning of the auxiliary heater system.
8. Can extreme weather conditions trigger the B048E code in a 2017 Chevrolet Silverado?
Extreme cold temperatures or prolonged use of the auxiliary heater system in harsh conditions can potentially contribute to the malfunction and trigger the B048E code.
9. How much does it typically cost to repair the Auxiliary Heater System Malfunction (B048E) in a 2017 Chevrolet Silverado?
The cost of repairing the B048E code can vary depending on the exact cause of the malfunction, parts needed for replacement, and labor charges. It is advisable to consult with a professional mechanic for an accurate estimate.
10. Are there any preventive maintenance tips to avoid encountering the B048E code in a 2017 Chevrolet Silverado?
Regularly inspecting and servicing the auxiliary heater system, keeping the vehicle in a garage during extreme weather, and addressing any heating issues promptly can help prevent the occurrence of the B048E code.
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