OBD Guide
ENFRDEESPT

B165A

Occupant Detection Sensor Zero Point Calibration Incomplete

B165A is an OBD-II diagnostic trouble code meaning: Occupant Detection Sensor Zero Point Calibration Incomplete. Common causes: calibration procedure not performed after replacing components, passenger detection sensor power problems. Estimated repair cost: $56–444.

Severity
🔴 High
Can you drive?
Do not drive — repair immediately
Approx. repair cost
$56–444 (est.)

Symptoms

  • Airbag malfunction indicator light is on
  • Restraint system error message on display
  • The front passenger airbag may not deploy in an accident.
  • Incorrect detection of the presence of a passenger in the seat

Causes

  • Calibration procedure not performed after replacing components
  • Passenger Detection Sensor Power Problems
  • Malfunction of the passenger detection sensor itself
  • Damage to the wiring harness to the sensor
  • Airbag computer malfunction
  • Interrupted calibration procedure

How to Fix

  1. System diagnostics using a scanner that supports SRS functions
  2. Checking the integrity of the wiring harness and sensor contacts
  3. Checking the power and ground of the passenger detection sensor
  4. Performing a zero point calibration procedure via diagnostic equipment
  5. Replacing the passenger detection sensor if it is faulty
  6. Clearing error codes and checking system operation

Related codes

B1650B1651B1655B1000

FAQ

What does the B165A code mean?

B165A is an OBD-II diagnostic trouble code that indicates: Occupant Detection Sensor Zero Point Calibration Incomplete

What causes a B165A error code?

The most common causes of B165A include: Calibration procedure not performed after replacing components; Passenger Detection Sensor Power Problems; Malfunction of the passenger detection sensor itself; Damage to the wiring harness to the sensor.

How do I fix a B165A diagnostic trouble code?

To fix B165A: System diagnostics using a scanner that supports SRS functions. Checking the integrity of the wiring harness and sensor contacts. Checking the power and ground of the passenger detection sensor. For a complete diagnosis, use an OBD-II scanner.

Is it safe to drive with B165A?

Do not drive — repair immediately

How much does it cost to fix B165A?

The estimated repair cost for B165A is $56–444. Actual cost depends on your vehicle, location, and labor rates.

FRDEESPT

See also: Russian version · NationStat