OBD Guide
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B1B46

Right Rear Inner Parking Aid Sensor

B1B46 is an OBD-II diagnostic trouble code meaning: Right Rear Inner Parking Aid Sensor. Common causes: damaged parking sensor, open or short circuit in wiring harness. Estimated repair cost: $56–167.

Severity
✅ Low
Can you drive?
Limited driving only, diagnose soon
Approx. repair cost
$56–167 (est.)

Symptoms

  • The parking system does not work or does not work correctly
  • False alarms of the parking system
  • No sound signal when approaching an obstacle

Causes

  • Damaged parking sensor
  • Open or short circuit in wiring harness
  • Sensor contact corrosion
  • Malfunction of the parking system control module

How to Fix

  1. Check the integrity of the parking sensor
  2. Check the wiring harness for damage
  3. Clean the sensor contacts from corrosion
  4. Replace sensor if necessary
  5. Check the parking system control module

Related codes

B1B45B1B47B1B48

FAQ

What does the B1B46 code mean?

B1B46 is an OBD-II diagnostic trouble code that indicates: Right Rear Inner Parking Aid Sensor

What causes a B1B46 error code?

The most common causes of B1B46 include: Damaged parking sensor; Open or short circuit in wiring harness; Sensor contact corrosion; Malfunction of the parking system control module.

How do I fix a B1B46 diagnostic trouble code?

To fix B1B46: Check the integrity of the parking sensor. Check the wiring harness for damage. Clean the sensor contacts from corrosion. For a complete diagnosis, use an OBD-II scanner.

Is it safe to drive with B1B46?

Limited driving only, diagnose soon

How much does it cost to fix B1B46?

The estimated repair cost for B1B46 is $56–167. Actual cost depends on your vehicle, location, and labor rates.

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See also: Russian version · NationStat