AutoCodes.com | All About OBDII Engine Codes
AutoCodes - GMC - P209D GMC

P209D GMC Code - Reductant Injection Air Pressure Sensor 'B' Circuit High

- Code Popularity: 1,235 Views
- Repair Importance Level: 3/3
- Repair Difficulty Level: 3/3
Table of contents
Share on Facebook   Share on Twitter   Share on Linkedin

What are the Possible Causes of the DTC P209D GMC?

NOTE: The causes shown may not be a complete list of all potential problems, and it is possible that there may be other causes.
  • Faulty Reductant Injection Air Pressure Sensor
  • Reductant Injection Air Pressure Sensor harness is open or shorted
  • Reductant Injection Air Pressure Sensor circuit poor electrical connection
⚠ Does your GMC have Safety Recalls? → Check here

How to Fix the DTC P209D GMC?

Review the 'Possible Causes' mentioned above and visually examine the corresponding wiring harness and connectors. Ensure to check for any damaged components and inspect the connector pins for signs of being broken, bent, pushed out, or corroded.

Search for P209D GMC Questions and Answers: Search here →

What is the Cost to Diagnose the Code?

Labor: 1.0

To diagnose the P209D GMC code, it typically requires 1.0 hour of labor. The specific diagnosis time and labor rates at auto repair shops can differ based on factors such as the location, make and model of the vehicle, and even the engine type. It is common for most auto repair shops to charge between $75 and $150 per hour.

What are Code Possible Symptoms?

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

Code P209D GMC Description

The Reductant Injection Air Pressure Sensor sends voltage reading information to the Powertrain Control Module (PCM). The PCM interprets these readings as pressure or exhaust gas temperature. The code is set when the voltage sent from the sensor to the PCM is out of factory specifications.

OBDII Code P209D GMC - Reductant Injection Air Pressure Sensor 'B' Circuit High - AutoCodes.com
P209D GMC Code - Reductant Injection Air Pressure Sensor 'B' Circuit High

Need More Information on the Code?

Need more information on how to fix the P209D GMC code? Get Access to Factory Service Manuals

Need Help with the Code?

Get the P209D GMC code diagnosed by a professional: Find a repair shop in your area

Code P209D GMC 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 P209D GMC code? Have you replaced any parts?
Any information is appreciated. Thanks