AutoCodes – Chevrolet – B1333 Chevrolet

B1333 Chevrolet Code - Lower Right Air Temperature Sensor

Quick Answer

The Instrument Panel Module (IPM) monitors the temperature sensors to maintain the comfort level inside of the vehicle. Common causes include Faulty Lower Right Air Temperature Sensor, Lower Right Air Temperature Sensor harness is open or shorted, Lower Right Air Temperature Sensor circuit poor electrical connection. Severity is Low - monitor the vehicle and repair when practical. The vehicle can usually be driven if no severe symptoms are present, but symptoms should be checked before extended driving.

What it means: B1333 Chevrolet indicates Lower Right Air Temperature Sensor.
Common causes: Common causes include Faulty Lower Right Air Temperature Sensor, Lower Right Air Temperature Sensor harness is open or shorted, Lower Right Air Temperature Sensor circuit poor electrical connection.
Severity: Low - monitor the vehicle and repair when practical.
Can I drive?: The vehicle can usually be driven if no severe symptoms are present, but symptoms should be checked before extended driving.

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Code Popularity 925

How popular is this code, among other codes? Low

Repair Importance Level

Low (Monitor) (1 / 3)

Repair Difficulty Level

Intermediate (2 / 3)

What is this?

Table of contents Created and updated by William Orellana on Dec 12, 2024

Description
Possible Causes
How To Fix
Cost to Diagnose
FAQs
Comments
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Code B1333 Chevrolet Description

The Instrument Panel Module (IPM) monitors the temperature sensors to maintain the comfort level inside of the vehicle. The temperature sensors are a 2 wire negative temperature co-efficient thermistor. The IPM applies 5 volts to internal input resistors that are connected to the signal circuits of the air temperature sensors. The IPM provides the ground to the air temperature sensors through the low reference circuit. The IPM monitors the voltage drop across the air temperature sensors and uses the inputs for automatic control calculations. When the air temperatures are cold, the resistance of the sensors are high and the voltage signals are high. When the air temperatures are hot, the resistance of the sensors are low and the voltage signals are low. The IPM converts the voltage values to count values where one volt is approximately equal to 51 counts.

OBDII Code B1333 Chevrolet - Lower Right Air Temperature Sensor - AutoCodes.com — B1333 Chevrolet Code - Lower Right Air Temperature Sensor

What does this mean?

What are the Possible Causes of the DTC B1333 Chevrolet?

Faulty Lower Right Air Temperature Sensor
Lower Right Air Temperature Sensor harness is open or shorted
Lower Right Air Temperature Sensor circuit poor electrical connection
Faulty Instrument Panel Module (IPM)

How to Fix the DTC B1333 Chevrolet?

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 B1333 Chevrolet 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.

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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 B1333 Chevrolet Code

1. What are common symptoms of OBDII code B1333 for the Lower Right Air Temperature Sensor on a Chevrolet?

- Common symptoms include inaccurate temperature readings on the climate control system, erratic air conditioning performance, and potential issues with overall HVAC system operation.

2. What could cause the OBDII code B1333 for the Lower Right Air Temperature Sensor on a Chevrolet?

- Possible causes may include a faulty air temperature sensor, wiring or connection issues, sensor calibration problems, or issues with the HVAC control module.

3. How can I diagnose the OBDII code B1333 related to the Lower Right Air Temperature Sensor on my Chevrolet?

- Diagnosis typically involves using a scan tool to read the fault code, checking the sensor's wiring and connections for any issues, and testing the sensor's resistance or output signal.

4. Can I continue driving my Chevrolet with the OBDII code B1333 for the Lower Right Air Temperature Sensor?

- While the vehicle may still be operable, it is recommended to address the issue promptly to prevent potential HVAC system malfunctions and ensure accurate temperature control.

5. What are some repair tips for fixing the OBDII code B1333 on a Chevrolet due to the Lower Right Air Temperature Sensor issue?

- Repair tips may include replacing the faulty sensor, checking and repairing any damaged wiring, ensuring proper sensor calibration, and resetting the fault code using a scan tool.

6. Is it possible to reset the OBDII code B1333 related to the Lower Right Air Temperature Sensor on a Chevrolet without fixing the underlying issue?

- Resetting the code without addressing the root cause is not recommended, as the issue will likely reoccur, potentially leading to further problems with the HVAC system.

7. How much does it typically cost to repair the OBDII code B1333 for the Lower Right Air Temperature Sensor on a Chevrolet?

- Repair costs can vary depending on the specific cause of the issue, but it may involve expenses for parts, labor, and diagnostic services from a qualified mechanic or dealership.

8. Are there any common DIY solutions for resolving the OBDII code B1333 associated with the Lower Right Air Temperature Sensor on a Chevrolet?

- DIY solutions may include checking and cleaning sensor connections, inspecting wiring for damage, and replacing the sensor if needed, but professional diagnosis and repair are recommended for accurate and lasting solutions.

9. Will fixing the OBDII code B1333 on my Chevrolet improve the overall performance of the HVAC system?

- Yes, resolving the code related to the Lower Right Air Temperature Sensor can help restore proper functionality to the HVAC system, ensuring accurate temperature control and consistent performance.

10. How long does it typically take to repair the OBDII code B1333 for the Lower Right Air Temperature Sensor on a Chevrolet?

- The repair time can vary based on the specific issue and repair process involved, but it may range from around 1 to 3 hours, depending on the complexity of the repair and any additional diagnostics required.