AutoCodes – GMC – B2180 GMC

B2180 GMC Code - Right Seat Back Heater Circuit

Quick Answer

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. Common causes include 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. Severity is High - diagnose this code as soon as possible. Driving is not recommended if the warning light is flashing, the engine runs poorly, or safety-related symptoms are present.

What it means: B2180 GMC indicates Right Seat Back Heater Circuit.
Common causes: Common causes include 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.
Severity: High - diagnose this code as soon as possible.
Can I drive?: Driving is not recommended if the warning light is flashing, the engine runs poorly, or safety-related symptoms are present.

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Code Popularity 755

How popular is this code, among other codes? Low

Repair Importance Level

Urgent (Diagnose now) (3 / 3)

Repair Difficulty Level

Advanced (Pro) (3 / 3)

What is this?

Table of contents Created and updated by William Orellana on Sep 22, 2019

Description
Possible Causes
How To Fix
Tech Notes
Cost to Diagnose
FAQs
Comments
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Code B2180 GMC Description

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.

OBDII Code B2180 GMC - Right Seat Back Heater Circuit - AutoCodes.com — B2180 GMC Code - Right Seat Back Heater Circuit

What does this mean?

What are the Possible Causes of the DTC B2180 GMC?

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)

How to Fix the DTC B2180 GMC?

Review the 'Possible Causes' above and visually examine the corresponding wiring harness and connectors. Check for damaged components and inspect connector pins for signs of being broken, bent, pushed out, or corroded.

What does this mean?

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

What is the Cost to Diagnose the Code?

Labor: 1.0

To diagnose the B2180 GMC code, it typically requires 1.0 hour of labor. Rates vary by location, vehicle, and shop. Many shops charge between $80–$150 per hour; dealerships and metro areas may be higher, independents may be lower.

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About the author: William Orellana is a Master Mechanic and Mechanical Engineer with over 30 years of experience diagnosing and repairing vehicles. Learn more about his background.

Frequently Asked Questions about B2180 GMC Code

1. What are common symptoms of OBDII code B2180 GMC (Right Seat Back Heater Circuit)?

- Common symptoms include a non-functioning right seat back heater, lack of heat from the right seat back, and an illuminated check engine light.

2. What causes the OBDII code B2180 GMC to trigger?

- The code B2180 typically triggers due to a malfunction in the right seat back heater circuit, often caused by a faulty heater element, wiring issues, or a defective control module.

3. How can I diagnose the issue related to code B2180 GMC?

- Diagnose the issue by checking the right seat back heater circuit for continuity, inspecting the wiring for any damage, and testing the control module for proper operation.

4. Can I still drive my vehicle with the OBDII code B2180 GMC?

- While it is generally safe to drive with this code, it is recommended to address the issue promptly to ensure optimal functionality of the right seat back heater.

5. How can I repair the right seat back heater circuit related to code B2180 GMC?

- Repair options include replacing the faulty heater element, repairing damaged wiring, or replacing the control module as needed.

6. Are there any precautions to take when repairing the right seat back heater circuit?

- It is essential to disconnect the vehicle's battery before starting any repair work to prevent electrical issues or safety hazards.

7. Can I reset the OBDII code B2180 GMC myself?

- Yes, you can reset the code using an OBDII scanner or by disconnecting the vehicle's battery for a few minutes. However, the underlying issue causing the code should be addressed to prevent it from reoccurring.

8. Are there any common mistakes to avoid when dealing with code B2180 GMC?

- Avoid overlooking simple issues like blown fuses or loose connections, as these can also cause the code to trigger.

9. What is the typical cost to repair the OBDII code B2180 GMC?

- The cost of repair can vary depending on the specific issue and whether you choose to address it yourself or take it to a professional. Costs may include parts and labor.

10. How can I prevent the OBDII code B2180 GMC from occurring in the future?

- To prevent the code from reoccurring, ensure regular maintenance of the vehicle's heating system, check for any signs of wear or damage, and address any issues promptly.