AutoCodes.com | All About OBDII Engine Codes
AutoCodes - Buick - B048E Buick

B048E Buick Code - Auxiliary Heater System Malfunction

- Code Popularity: 485 Views
- Repair Importance Level: 1/3
- Repair Difficulty Level: 2/3
Table of contents
By AutoCodes.com - Updated Mar 11, 2021
Share on Facebook   Share on Twitter   Share on Linkedin

|Code B048E Buick Possible Causes

  • 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 do I Fix the Code B048E Buick?

Check the "Possible Causes" listed above. Visually inspect the related wiring harness and connectors. Check for damaged components and look for broken, bent, pushed out, or corroded connector's pins.

Does your Buick have Safety Recalls? → Check here

|What is the Cost to Diagnose the Code B048E Buick?

Labor: 1.0

The cost of diagnosing the B048E Buick code is 1.0 hour of labor. The auto repair labor rates vary by location, your vehicle's make and model, and even your engine type. Most auto repairs shops charge between $75 and $150 per hour.

|What are Code B048E Buick Possible Symptoms?

  • Engine Light ON (or Service Engine Soon Warning Light)

|Code B048E Buick Description

The Heating, Ventilation, and Air Conditioning (HVAC) Control Module sends a Pulse Width Modulation (PWM) signal to the electrical auxiliary heater, if the interior temperature is too low and additional heat is requested. The request signal from the HVAC control module, battery positive, ignition and ground circuits enable the electrical auxiliary heater to operate. Through the signal circuit the electrical auxiliary heater sends via a PWM signal the current status to the HVAC control module.

OBDII Code B048E Buick - Auxiliary Heater System Malfunction - AutoCodes.com
B048E Buick Code - Auxiliary Heater System Malfunction

|Need More Information on the B048E Buick Code?

Need more information on how to fix the B048E Buick code? Get Access to Factory Service Manuals

|Need Help with the B048E Buick Code?

Get the B048E Buick code diagnosed by a professional: Find a repair shop in your area

|Code B048E Buick comments

Help us improve AutoCodes.com. Leave a comment below or tell us if the information above helps you fix the code. What are the symptoms on your vehicle for the B048E Buick code? Have you replaced any parts?
Any information is appreciated. Thanks