OBD Guide
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B1022

Occupant Sensor Control Unit

B1022 is an OBD-II diagnostic trouble code meaning: Occupant Sensor Control Unit. Common causes: wiring harness damage, malfunction of the passenger presence sensor control unit. Estimated repair cost: $56–167.

Severity
🔴 High
Can you drive?
Do not drive — repair immediately
Approx. repair cost
$56–167 (est.)

Symptoms

  • The passive safety system fault indicator is on
  • Passenger airbag does not activate
  • Incorrect operation of the passenger presence detection system

Causes

  • Wiring harness damage
  • Malfunction of the passenger presence sensor control unit
  • Poor contact in connectors
  • Control unit software error

How to Fix

  1. Check the integrity of the wiring harness and connectors
  2. Test the passenger presence sensor control unit
  3. Replace the faulty unit if necessary
  4. Reset the error and check the system

Related codes

B1021B1023B1024

FAQ

What does the B1022 code mean?

B1022 is an OBD-II diagnostic trouble code that indicates: Occupant Sensor Control Unit

What causes a B1022 error code?

The most common causes of B1022 include: Wiring harness damage; Malfunction of the passenger presence sensor control unit; Poor contact in connectors; Control unit software error.

How do I fix a B1022 diagnostic trouble code?

To fix B1022: Check the integrity of the wiring harness and connectors. Test the passenger presence sensor control unit. Replace the faulty unit if necessary. For a complete diagnosis, use an OBD-II scanner.

Is it safe to drive with B1022?

Do not drive — repair immediately

How much does it cost to fix B1022?

The estimated repair cost for B1022 is $56–167. Actual cost depends on your vehicle, location, and labor rates.

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See also: Russian version · NationStat