Engine-Codes - Buick - P101A Buick

P101A Buick Code - Reductant Control Module Sensor Communication Ground Circuit High Voltage

- Code Popularity: 151 Views
- Repair Importance Level: 3/3
- Repair Difficulty Level: 3/3
Table of contents

|What are the Possible Causes of the Code P101A Buick?

  • Faulty Reductant Control Module
  • Reductant Control Module harness is open or shorted
  • Reductant Control Module circuit poor electrical connection
  • Faulty Reductant Quality Sensor

|How to Fix the P101A Buick Code?

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.

|What is the Cost to Diagnose the Code P101A Buick?

Labor: 1.0

The cost to diagnose the P101A 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.

Does your Buick have Safety Recalls? → Check here

|What are Code P101A Buick Possible Symptoms?

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

|What Does the P101A Buick Code Mean?

The Reductant Quality Sensor is located in the reductant tank and uses an ultrasonic signal to measure reductant fluid quality. The Reductant Quality Sensor includes an integrated temperature sensor to measure reductant fluid temperature. The Reductant Quality Sensor communicates with the Reductant Control Module using serial data. The Diagnostic Trouble Code (DTC) will be set if the reductant control module detects a short to voltage on the low reference circuit for greater than 1 s.

P101A Buick Code - Reductant Control Module Sensor Communication Ground Circuit High Voltage

|Need more Information on the P101A Buick Code?

Need more information on how to fix the P101A Buick code? Get Access to Factory Service Manuals

|Need Help with the P101A Buick Code?

Get the P101A Buick code diagnosed by a professional: Find a repair shop in your area