Engine-Codes - Buick - B048C BUICK

B048C BUICK Code - Humidity Sensor Humidity Circuit

Repair Importance Level: 1/3
Repair Difficulty Level: 2/3  What is this?
Table of contents

|B048C BUICK code possible causes

  • Faulty Humidity Sensor Humidity
  • Humidity Sensor Humidity harness is open or shorted
  • Humidity Sensor Humidity circuit poor electrical connection
  • Faulty Heating, Ventilation, and Air Conditioning (HVAC) Control Module

|How is the B048C BUICK code repair?

Start by checking 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.

|B048C BUICK code tech notes

B048C 02: Humidity Sensor Humidity Circuit Short to Ground
B048C 05: Humidity Sensor Humidity Circuit Short to Battery or Open

|What is the cost to diagnose the B048C BUICK code

Labor: 1.0

The cost to diagnose the B048C BUICK code is 1.0 hour of labor. The auto repair's diagnosis time and labor rates vary by location, vehicle's make and model, and even your engine type. Most auto repair shops charge between $75 and $150 per hour.

|What are B048C BUICK code possible symptoms?

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

|What is B048C BUICK code meaning?

The windscreen temperature and inside moisture sensor integrates the relative humidity sensor, windscreen temperature sensor and humidity sensing element temperature sensor. This sensor assembly provides information about relative humidity level on inside windscreen, temperature of the inside windscreen and temperature of the humidity sensor element.
The relative humidity sensor measures the relative humidity on the compartment side of the windscreen. It also detects the temperature of the windscreen surface on the compartment side. Both values are used as control inputs for the Heating, Ventilation, and Air Conditioning (HVAC) Control Module application to calculate the fog risk on windscreen compartment side and ability to reduce fuel consumption by decreasing A/C compressor power to a minimum without causing any fog. The sensor will also enable partial recirculation mode in order to improve heat-up performance of the passenger compartment under cold ambient temperature conditions without the risk of mist build-up on the windscreen. The humidity sensor element temperature sensor supplies the temperature of the humidity sensor element. It is only needed if the thermal contact between the humidity sensing element and the inside windscreen surface is not sufficient.

|Need more information with the B048C BUICK code?

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