OBD Guide
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B1EB3

Rear Left Seat Heater Sensor Circuit Resistance

B1EB3 is an OBD-II diagnostic trouble code meaning: Rear Left Seat Heater Sensor Circuit Resistance. Common causes: temperature sensor malfunction, open or short circuit in the circuit. Estimated repair cost: $56–167.

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

Symptoms

  • No heated rear left seat
  • Spontaneous heating shutdown
  • Heating fault indication on the instrument panel

Causes

  • Temperature sensor malfunction
  • Open or short circuit in the circuit
  • Contact corrosion
  • Wiring harness damage
  • Heating control module malfunction

How to Fix

  1. Check the resistance of the temperature sensor
  2. Inspect the wiring harness and contacts for damage
  3. Replace temperature sensor if necessary
  4. Check heating control module

Related codes

B1EB1B1EB2B1EB4

FAQ

What does the B1EB3 code mean?

B1EB3 is an OBD-II diagnostic trouble code that indicates: Rear Left Seat Heater Sensor Circuit Resistance

What causes a B1EB3 error code?

The most common causes of B1EB3 include: Temperature sensor malfunction; Open or short circuit in the circuit; Contact corrosion; Wiring harness damage.

How do I fix a B1EB3 diagnostic trouble code?

To fix B1EB3: Check the resistance of the temperature sensor. Inspect the wiring harness and contacts for damage. Replace temperature sensor if necessary. For a complete diagnosis, use an OBD-II scanner.

Is it safe to drive with B1EB3?

Limited driving only, diagnose soon

How much does it cost to fix B1EB3?

The estimated repair cost for B1EB3 is $56–167. Actual cost depends on your vehicle, location, and labor rates.

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See also: Russian version · NationStat