AutoCodes – Cadillac – B1324 Cadillac

B1324 Cadillac Code - A/C Refrigerant Pressure Sensor

Quick Answer

The Powertrain Control Module (PCM) monitors the high side refrigerant pressure through the A/C refrigerant pressure sensor. Common causes include Faulty A/C Refrigerant Pressure Sensor, A/C Refrigerant Pressure Sensor harness is open or shorted, A/C Refrigerant Pressure 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: B1324 Cadillac indicates A/C Refrigerant Pressure Sensor.
Common causes: Common causes include Faulty A/C Refrigerant Pressure Sensor, A/C Refrigerant Pressure Sensor harness is open or shorted, A/C Refrigerant Pressure 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 1,403

How popular is this code, among other codes? Low

Repair Importance Level

Urgent (Diagnose now) (3 / 3)

Repair Difficulty Level

Advanced (Pro) (3 / 3)

What is this?

Table of contents Created and updated by William Orellana on Mar 14, 2019

Description
Possible Causes
How To Fix
Cost to Diagnose
FAQs
Comments
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Code B1324 Cadillac Description

The Powertrain Control Module (PCM) monitors the high side refrigerant pressure through the A/C refrigerant pressure sensor. The PCM applies a 5-volt reference and a low reference to the sensor. When the pressure is low, the voltage of the sensor is low. When the pressure is high, the voltage of the sensor is high. The PCM sends the A/C pressure data to the body control module over the class 2 serial data circuit. The body control module will not request A/C clutch engagement if the A/C pressure is too high.

OBDII Code B1324 Cadillac - A/C Refrigerant Pressure Sensor - AutoCodes.com — B1324 Cadillac Code - A/C Refrigerant Pressure Sensor

What does this mean?

What are the Possible Causes of the DTC B1324 Cadillac?

Faulty A/C Refrigerant Pressure Sensor
A/C Refrigerant Pressure Sensor harness is open or shorted
A/C Refrigerant Pressure Sensor circuit poor electrical connection
Faulty Powertrain Control Module (PCM)

How to Fix the DTC B1324 Cadillac?

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 B1324 Cadillac 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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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 B1324 Cadillac Code

1. What are common symptoms of OBDII code B1324 for the A/C Refrigerant Pressure Sensor in a Cadillac?

- Common symptoms include erratic A/C operation, insufficient cooling, and the A/C compressor not engaging.

2. What could cause the OBDII code B1324 to trigger for the A/C Refrigerant Pressure Sensor in a Cadillac?

- The code can be triggered by a faulty A/C refrigerant pressure sensor, low refrigerant level, or issues with the A/C compressor.

3. How can I diagnose the OBDII code B1324 related to the A/C Refrigerant Pressure Sensor in my Cadillac?

- Diagnose by checking the A/C system for leaks, testing the refrigerant pressure sensor, and verifying the A/C compressor operation.

4. Can I continue driving my Cadillac with the OBDII code B1324 related to the A/C Refrigerant Pressure Sensor?

- It is not recommended to drive with this code as it can lead to poor A/C performance and potential damage to the A/C components.

5. What are some repair tips for resolving the OBDII code B1324 for the A/C Refrigerant Pressure Sensor in a Cadillac?

- Repair tips include checking and topping up refrigerant levels, replacing the refrigerant pressure sensor, and ensuring proper A/C system operation.

6. How much does it typically cost to repair the OBDII code B1324 for the A/C Refrigerant Pressure Sensor in a Cadillac?

- Repair costs can vary but typically range from $150 to $300, depending on the exact cause of the issue and parts needed.

7. Can a DIY enthusiast fix the OBDII code B1324 related to the A/C Refrigerant Pressure Sensor in a Cadillac?

- While some basic troubleshooting steps can be done by DIY enthusiasts, it is recommended to seek professional help for accurate diagnosis and repair.

8. Does the OBDII code B1324 affect the overall performance of a Cadillac other than the A/C system?

- No, this code specifically relates to the A/C refrigerant pressure sensor and should not impact the overall performance of the vehicle outside of the A/C system.

9. How often should the A/C refrigerant pressure sensor be inspected in a Cadillac to prevent triggering the OBDII code B1324?

- The A/C refrigerant pressure sensor should be inspected during regular A/C system maintenance checks or whenever A/C performance issues are noticed.

10. Are there any recalls or technical service bulletins related to the OBDII code B1324 for the A/C Refrigerant Pressure Sensor in Cadillacs?

- It's recommended to check with your local Cadillac dealership or refer to the manufacturer's website for any relevant recalls or technical service bulletins regarding this issue.