OBD Guide
ENFRDEESPT

B1B87

Passenger Seat Weight Sensor 1 Right Rear Performance

B1B87 is an OBD-II diagnostic trouble code meaning: Passenger Seat Weight Sensor 1 Right Rear Performance. Common causes: load sensor malfunction, wiring harness damage. Estimated repair cost: $56–167.

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

Symptoms

  • The security system malfunction indicator is on
  • Incorrect determination of presence of a passenger
  • Errors in the operation of airbags

Causes

  • Load sensor malfunction
  • Wiring harness damage
  • Contact corrosion
  • Problems with the security control unit

How to Fix

  1. Check the integrity of the load cell
  2. Inspect the wiring harness for damage
  3. Check contacts for corrosion
  4. Scan the control unit for other errors
  5. Replace the load sensor if necessary

Related codes

B1B88B1B89B1B90

FAQ

What does the B1B87 code mean?

B1B87 is an OBD-II diagnostic trouble code that indicates: Passenger Seat Weight Sensor 1 Right Rear Performance

What causes a B1B87 error code?

The most common causes of B1B87 include: Load sensor malfunction; Wiring harness damage; Contact corrosion; Problems with the security control unit.

How do I fix a B1B87 diagnostic trouble code?

To fix B1B87: Check the integrity of the load cell. Inspect the wiring harness for damage. Check contacts for corrosion. For a complete diagnosis, use an OBD-II scanner.

Is it safe to drive with B1B87?

Do not drive — repair immediately

How much does it cost to fix B1B87?

The estimated repair cost for B1B87 is $56–167. Actual cost depends on your vehicle, location, and labor rates.

FRDEESPT

See also: Russian version · NationStat