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Engine-Codes - Generic - B120B

B120B - Passenger Seat Back Temperature Sensor

Repair Importance Level: 3/3
Repair Difficulty Level: 3/3  What is this?
Table of contents

B120B Possible Causes

What does this mean?
  • Faulty Passenger Seat Back Temperature Sensor
  • Passenger Seat Back Temperature Sensor harness is open or shorted
  • Passenger Seat Back Temperature Sensor circuit poor electrical connection
  • Faulty Seat Control Module E (SCME)

How is the B120B code repair?

Start by checking the "Possible Causes" listed above. Visually inspect the related wiring harness and connectors. Check for damaged components and look for broken, bent, pushed out, or corroded connector's pins.

Tech Notes

What does this mean?
B120B:01 Passenger Seat Back Temperature Sensor General Electrical Failure
B120B:98 Passenger Seat Back Temperature Sensor Component or System Over Temperature

What is the cost to diagnose the B120B code

Labor: 1.0

The cost to diagnose the B120B code is 1.0 hour of labor. The auto repair labor rates vary widely across the country, and even within the same city. Most auto repairs shops charge between $75 and $150 per hour.
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Possible Symptoms

  • Engine Light ON (or Service Engine Soon Warning Light)

B120B Meaning

The Seat Control Module E (SCME) monitors the Passenger Seat Back Temperature Sensor. The SCME sets the OBDII code when the Passenger Seat Back Temperature Sensor is not to factory specifications.

More Information

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Information for specific makes

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