AutoCodes – Generic – B1E9B

B1E9B Code - Rear Left Heater Control Circuit

Quick Answer

The Heated Seat Module (HSM) monitors the Rear Left Heater Control Circuit. Common causes include Faulty Rear Left Seat Cushing Heater Element, Rear Left Seat Cushing Heater Element harness is open or shorted, Rear Left Seat Cushing 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
B1E9B indicates Rear Left Heater Control Circuit.
Common causes
Common causes include Faulty Rear Left Seat Cushing Heater Element, Rear Left Seat Cushing Heater Element harness is open or shorted, Rear Left Seat Cushing 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.
AI answers can be wrong. Verify repairs with testing. Open full chat
Code Popularity 511
How popular is this code, among other codes? Low
Table of contents Created and updated by William Orellana on Sep 05, 2019
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Code B1E9B Description

The Heated Seat Module (HSM) monitors the Rear Left Heater Control Circuit. The Heated Seat Module sets the OBDII code when the Rear Left Heater Control Circuit is not to factory specifications for more than two seconds with the output turned on.
OBDII Code B1E9B - Rear Left Heater Control Circuit - AutoCodes.com
B1E9B Code - Rear Left Heater Control Circuit

What are the Possible Causes of the DTC B1E9B?

  • Faulty Rear Left Seat Cushing Heater Element
  • Rear Left Seat Cushing Heater Element harness is open or shorted
  • Rear Left Seat Cushing Heater Element circuit poor electrical connection
  • Faulty Heated Seat Module (HSM)

How to Fix the DTC B1E9B?

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.

Code Tech Notes

What is the Cost to Diagnose the Code?

Labor: 1.0

To diagnose the B1E9B 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.

Need more information about the B1E9B code?

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Information for Specific Makes

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 B1E9B Code

1. What are the common symptoms of OBDII code B1E9B (Rear Left Heater Control Circuit)?

- The common symptoms include a lack of heat coming from the rear left heater, inconsistent temperature control, or complete failure of the rear left heater.

2. What are some possible causes of OBDII code B1E9B?

- The code B1E9B can be triggered by issues such as a faulty rear left heater control module, damaged wiring or connectors, or a malfunctioning rear left heater element.

3. How can I diagnose the cause of OBDII code B1E9B?

- To diagnose the issue, you can use a diagnostic scanner to read the code and check for any related codes. Additionally, inspecting the wiring, connectors, and heater element for damage can help pinpoint the cause.

4. Can I continue driving with OBDII code B1E9B present?

- It is not recommended to continue driving with this code present, as it can lead to discomfort for rear passengers and may indicate a potential safety hazard if the heater system is not functioning properly.

5. How can I repair OBDII code B1E9B?

- Repairing this code typically involves replacing the faulty rear left heater control module, repairing any damaged wiring or connectors, or replacing the rear left heater element if necessary.

6. Are there any DIY tips for troubleshooting OBDII code B1E9B?

- DIY tips include checking the fuse related to the rear left heater, inspecting the wiring for any visible damage, and ensuring that the rear left heater control module is securely connected.

7. Will resetting the OBDII code B1E9B resolve the issue?

- Resetting the code may temporarily clear the warning light, but it will not fix the underlying issue causing the code. It is important to diagnose and repair the problem to prevent the code from reoccurring.

8. Is OBDII code B1E9B specific to a certain vehicle make or model?

- OBDII code B1E9B related to the Rear Left Heater Control Circuit can be found in various vehicle makes and models equipped with a rear heater system.

9. Can weather conditions affect the triggering of OBDII code B1E9B?

- Extreme weather conditions, such as very cold temperatures, can sometimes affect the performance of the rear heater system and potentially trigger the B1E9B code.

10. How can I prevent OBDII code B1E9B from occurring in the future?

- Regular maintenance of the rear heater system, including checking for any signs of wear or damage, can help prevent the occurrence of OBDII code B1E9B.

Discuss the causes and fixes for B1E9B OBDII Code

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