OBD Guide
ENFRDEESPT

B1422

Compressor Lock Sensor Circuit

B1422 is an OBD-II diagnostic trouble code meaning: Compressor Lock Sensor Circuit. Common causes: open or short circuit in the sensor circuit, compressor lock sensor malfunction. Estimated repair cost: $33–167.

Severity
⚠️ Medium
Can you drive?
Yes, but get it checked soon
Approx. repair cost
$33–167 (est.)

Symptoms

  • Turning off the air conditioner
  • Unstable climate control operation
  • Increased engine load
  • Compressor noise

Causes

  • Open or short circuit in the sensor circuit
  • Compressor lock sensor malfunction
  • Wiring Harness Problems
  • Air conditioning control unit malfunction
  • Mechanical jamming of the compressor

How to Fix

  1. Check the integrity of the sensor circuit
  2. Check sensor resistance
  3. Inspect the wiring harness for damage
  4. Check compressor operation manually
  5. If necessary, replace the sensor or compressor

Related codes

B1421B1423P0530

FAQ

What does the B1422 code mean?

B1422 is an OBD-II diagnostic trouble code that indicates: Compressor Lock Sensor Circuit

What causes a B1422 error code?

The most common causes of B1422 include: Open or short circuit in the sensor circuit; Compressor lock sensor malfunction; Wiring Harness Problems; Air conditioning control unit malfunction.

How do I fix a B1422 diagnostic trouble code?

To fix B1422: Check the integrity of the sensor circuit. Check sensor resistance. Inspect the wiring harness for damage. For a complete diagnosis, use an OBD-II scanner.

Is it safe to drive with B1422?

Yes, but get it checked soon

How much does it cost to fix B1422?

The estimated repair cost for B1422 is $33–167. Actual cost depends on your vehicle, location, and labor rates.

FRDEESPT

See also: Russian version · NationStat