Engine-Codes - GMC - B2180 GMC

B2180 GMC Code - Right Seat Back Heater Circuit

- Code Popularity: 549 Views
- Repair Importance Level: 3/3
- Repair Difficulty Level: 3/3
Table of contents
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What are the Possible Causes of the DTC B2180 GMC?

NOTE: The causes shown may not be a complete list of all potential problems, and it is possible that there may be other causes.
  • Faulty Right Seat Back Heater Element
  • Right Seat Back Heater Element harness is open or shorted
  • Right Seat Back Heater Element circuit poor electrical connection
  • Faulty Memory Seat Module (MSM)

Code Tech Notes

B2180 04: Right Seat Back Heater Circuit Open
B2180 0A: Right Seat Back Heater Circuit Rate of Change Below Threshold
B2180 0B: Right Seat Back Heater Circuit Current Above Threshold
B2180 0C: Right Seat Back Heater Circuit Current Below Threshold
B2180 0D: Right Seat Back Heater Circuit Resistance Above Threshold
B2180 0E: Right Seat Back Heater Circuit Resistance Below Threshold
B2180 1F: Right Seat Back Heater Circuit Intermittent

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How to Fix the DTC B2180 GMC?

Check 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 pins.

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What is the Cost to Diagnose the Code?

Labor: 1.0

The cost to diagnose the B2180 GMC code is 1.0 hour of labor. The diagnosis time and labor rates at auto repair shops vary depending on the location, make and model of the vehicle, and even the engine type. Most auto repair shops charge between $75 and $150 per hour.

What are Code Possible Symptoms?

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

What Does the B2180 GMC Code Mean?

When the heated seat function is active, the Memory Seat Module (MSM) supplies battery voltage through the element supply voltage circuit to the seat heater elements. The module controls the seat temperature by providing a PWM ground through the heated seat element control circuit to the seat heater elements. The module then monitors the current flow through the heating element and the temperature sensor rate of change to verify correct operation. The OBDII code sets when the module detects that the set point temperature is not to factory specifications.

B2180 GMC Code - Right Seat Back Heater Circuit

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