OBD Guide

B1EB4

Rear Right Seat Heater Sensor Circuit Resistance

B1EB4 is an OBD-II diagnostic trouble code meaning: Rear Right Seat Heater Sensor Circuit Resistance. Common causes: sensor circuit open, short circuit in the circuit. Estimated repair cost: $33–167.

Severity
⚠️ Medium
Can you drive?
Yes, but get it checked soon
Approx. repair cost
$33–167 (est.)

Symptoms

  • Incorrect operation of the right rear seat heating
  • Seat heating does not turn on
  • Seat heating operates continuously without temperature adjustment
  • The malfunction indicator on the instrument panel lights up

Causes

  • Sensor circuit open
  • Short circuit in the circuit
  • Temperature sensor malfunction
  • Wiring harness damage
  • Oxidation of contacts
  • Problems with the heated seat control module

How to Fix

  1. Check the integrity of the wiring harness to the sensor
  2. Check sensor resistance (must meet specification)
  3. Inspect contacts for oxidation or damage
  4. If necessary, replace the temperature sensor
  5. Check the operation of the seat heating control module
  6. Reset the error and check if it returns

Related codes

FAQ

What does the B1EB4 code mean?

B1EB4 is an OBD-II diagnostic trouble code that indicates: Rear Right Seat Heater Sensor Circuit Resistance

What causes a B1EB4 error code?

The most common causes of B1EB4 include: Sensor circuit open; Short circuit in the circuit; Temperature sensor malfunction; Wiring harness damage.

How do I fix a B1EB4 diagnostic trouble code?

To fix B1EB4: Check the integrity of the wiring harness to the sensor. Check sensor resistance (must meet specification). Inspect contacts for oxidation or damage. For a complete diagnosis, use an OBD-II scanner.

Is it safe to drive with B1EB4?

Yes, but get it checked soon

How much does it cost to fix B1EB4?

The estimated repair cost for B1EB4 is $33–167. Actual cost depends on your vehicle, location, and labor rates.

See also: Russian version · NationStat