B048D 2017 Chevrolet Silverado Code - Auxiliary Heater Temperature Command Circuit
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
- B048D 2017 Chevrolet Silverado indicates Auxiliary Heater Temperature Command Circuit.
- 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 B048D 2017 Chevrolet Silverado Description
What are the Possible Causes of the DTC B048D 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 B048D 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
B048D:06 Auxiliary Heater Temperature Command Circuit Low Voltage/Open
What is the Cost to Diagnose the Code?
Labor: 1.0
To diagnose the B048D 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 B048D 2017 Chevrolet Silverado code?
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Frequently Asked Questions about B048D 2017 Chevrolet Silverado Code
1. What does the OBDII code B048D on a 2017 Chevrolet Silverado mean?
The code B048D indicates a problem with the Auxiliary Heater Temperature Command Circuit in your vehicle.
2. What are some common symptoms of the B048D code in a 2017 Chevrolet Silverado?
Common symptoms include a lack of heat from the auxiliary heater, the heater not working at all, or inconsistent heating.
3. What are the possible causes of the B048D code in a 2017 Chevrolet Silverado?
Potential causes include a faulty temperature sensor, wiring issues, a malfunctioning auxiliary heater control module, or a problem with the heater itself.
4. How can I diagnose the B048D code on my 2017 Chevrolet Silverado?
Diagnosis typically involves using an OBDII scanner to retrieve the code, inspecting the auxiliary heater components, checking the wiring for damage, and testing the temperature sensor.
5. Can I continue driving my 2017 Chevrolet Silverado with the B048D code present?
It is not recommended to drive with the B048D code active, as it can lead to reduced heating capabilities and potential further damage to the auxiliary heater system.
6. How can I repair the B048D code on my 2017 Chevrolet Silverado?
Repair options may include replacing the faulty temperature sensor, repairing damaged wiring, replacing the auxiliary heater control module, or fixing any issues with the auxiliary heater itself.
7. Is it possible to reset the B048D code on a 2017 Chevrolet Silverado without making repairs?
While you can clear the code with an OBDII scanner, it is essential to address the underlying issue to prevent the code from reoccurring.
8. Are there any DIY tips for fixing the B048D code on a 2017 Chevrolet Silverado?
DIY enthusiasts can start by inspecting the wiring connections, ensuring proper sensor function, and checking for any visible damage to the auxiliary heater components.
9. Can weather conditions affect the occurrence of the B048D code on a 2017 Chevrolet Silverado?
Extreme cold temperatures or exposure to moisture can sometimes exacerbate issues with the auxiliary heater system, leading to the B048D trouble code.
10. How long does it typically take to repair the B048D code on a 2017 Chevrolet Silverado?
The repair time can vary depending on the exact cause of the issue, but it may take anywhere from a few hours to a day to address and fix the problem properly.
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