Engine-Codes - Generic - B1422

B1422 Code - Compressor Lock Sensor Circuit

- Code Popularity: 16,535 Views
- Repair Importance Level: 3/3
- Repair Difficulty Level: 3/3
Table of contents

|What are the Possible Causes of the Code B1422?

  • 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 to Fix the B1422 Code?

Start by checking 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.

|What is the Cost to Diagnose the Code B1422?

Labor: 1.0

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

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|What are Code B1422 Possible Symptoms?

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

|What Does the B1422 Code Mean?

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.

B1422 Code - Compressor Lock Sensor Circuit

|Need more Information on the B1422 Code?

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|Code B1422 Information for Specific Makes

|Need Help with the B1422 Code?

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