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AutoCodes - Generic - B1422

B1422 Code - Compressor Lock Sensor Circuit

- Code Popularity: 16,522 Views
- Repair Importance Level: 3/3
- Repair Difficulty Level: 3/3
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By - Updated Sep 20, 2022
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|Code B1422 Possible Causes

  • Faulty Cooler Compressor Assembly (A/C Lock Sensor)
  • Compressor Assembly harness is open or shorted
  • Compressor Assembly circuit poor electrical connection
  • Faulty Air Conditioning Amplifier

|How do I Fix the Code B1422?

Check 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.

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|What is the Cost to Diagnose the Code B1422?

Labor: 1.0

The cost of diagnosing the B1422 code is 1.0 hour of labor. The auto repair labor rates vary by location, your vehicle's make and model, and even your engine type. Most auto repairs shops charge between $75 and $150 per hour.

|What are Code B1422 Possible Symptoms?

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

|Code B1422 Description

The Engine Control Module (ECM) sends the engine speed signal to the Air Conditioning Amplifier assembly via CAN communication.
The Air Conditioning Amplifier assembly reads the difference between compressor speed and engine speed. When the difference becomes too large, the air conditioning amplifier assembly determines that the compressor is locked, and turns the magnet clutch off.
The Diagnostic Trouble Code (DTC) will be set when an open or short in the A/C lock sensor circuit is detected.

OBDII Code B1422 - Compressor Lock Sensor Circuit -
B1422 Code - Compressor Lock Sensor Circuit

|Need More Information on the B1422 Code?

Need more information on how to fix the B1422 code? Get Access to Factory Service Manuals

|Information for Specific Makes

|Need Help with the B1422 Code?

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|Code B1422 comments

Help us improve 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 B1422 code? Have you replaced any parts?
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