AutoCodesNissan – B27C2 Nissan

B27C2 Nissan Code - PTC Outlet Air Temperature Sensor Low

Quick Answer

The Diagnostic Trouble Code (DTC) sets when the Positive Temperature Coefficient (PTC) heater outlet air temperature sensor recognition temperature is too low [less than - 42°C (- 44°F)]. Common causes include Faulty Positive Temperature Coefficient (PTC) Outlet Air Temperature Sensor, PTC Outlet Air Temperature Sensor harness is open or shorted, PTC Outlet Air Temperature Sensor circuit poor electrical connection. Severity is High - diagnose this code as soon as possible. Driving is not recommended if the warning light is flashing, the engine runs poorly, or safety-related symptoms are present.

What it means
B27C2 Nissan indicates PTC Outlet Air Temperature Sensor Low.
Common causes
Common causes include Faulty Positive Temperature Coefficient (PTC) Outlet Air Temperature Sensor, PTC Outlet Air Temperature Sensor harness is open or shorted, PTC Outlet Air Temperature Sensor circuit poor electrical connection.
Severity
High - diagnose this code as soon as possible.
Can I drive?
Driving is not recommended if the warning light is flashing, the engine runs poorly, or safety-related symptoms are present.
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Code Popularity 802
How popular is this code, among other codes? Low
Table of contents Created and updated by William Orellana on Feb 10, 2020
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Code B27C2 Nissan Description

The Diagnostic Trouble Code (DTC) sets when the Positive Temperature Coefficient (PTC) heater outlet air temperature sensor recognition temperature is too low [less than - 42°C (- 44°F)].
OBDII Code B27C2 Nissan - PTC Outlet Air Temperature Sensor Low - AutoCodes.com
B27C2 Nissan Code - PTC Outlet Air Temperature Sensor Low

What are the Possible Causes of the DTC B27C2 Nissan?

  • Faulty Positive Temperature Coefficient (PTC) Outlet Air Temperature Sensor
  • PTC Outlet Air Temperature Sensor harness is open or shorted
  • PTC Outlet Air Temperature Sensor circuit poor electrical connection
  • Faulty A/C Auto Amplifier

How to Fix the DTC B27C2 Nissan?

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.

What is the Cost to Diagnose the Code?

Labor: 1.0

To diagnose the B27C2 Nissan 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 B27C2 Nissan code?

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Need Help with the Code?

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About the author: William Orellana is a Master Mechanic and Mechanical Engineer with over 30 years of experience diagnosing and repairing vehicles. Learn more about his background.

Frequently Asked Questions about B27C2 Nissan Code

What does the OBDII code B27C2 mean for a Nissan vehicle?

The code B27C2 indicates a problem with the PTC (Positive Temperature Coefficient) outlet air temperature sensor, specifically that its readings are lower than expected.

What are the common symptoms of the B27C2 code?

Common symptoms include poor cabin heating, malfunctioning climate control, and possible warning lights on the dashboard.

What could cause the B27C2 code to trigger in my Nissan?

Causes may include a faulty PTC outlet air temperature sensor, damaged wiring or connectors, or issues with the vehicle's climate control system.

How can I diagnose the B27C2 code?

Begin by using an OBD-II scanner to confirm the code. Then, inspect the PTC outlet air temperature sensor, its wiring, and connectors for any visible damage or corrosion.

Is it safe to drive with the B27C2 code?

While it may be safe to drive, you might experience reduced cabin heating, which could be uncomfortable in cold weather. It's advisable to address the issue promptly.

What repairs are needed to fix the B27C2 code?

Repairs may involve replacing the faulty PTC outlet air temperature sensor, repairing damaged wiring, or addressing issues within the climate control system.

Can I clear the B27C2 code myself?

Yes, you can clear the code using an OBD-II scanner, but if the underlying issue is not fixed, the code will likely return.

How much does it typically cost to repair the B27C2 code?

Repair costs can vary widely, typically ranging from $50 to $300, depending on whether you need to replace the sensor or repair wiring issues.

Can other OBDII codes be related to B27C2?

Yes, other codes related to the climate control system or temperature sensors may accompany the B27C2 code, indicating broader issues.

Discuss the causes and fixes for B27C2 Nissan OBDII Code

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