AutoCodes – Chrysler – B104E Chrysler

B104E Chrysler Code - Blend Door Control Circuit High

Quick Answer

The Powertrain Control Module (PCM) factors the Blend Door position and Blower Motor speed information into the coolant temperature modeling. Common causes include Faulty Blend Door Actuator, Blend Door Actuator harness is open or shorted, Blend Door Actuator circuit poor electrical connection. Severity is Low - monitor the vehicle and repair when practical. The vehicle can usually be driven if no severe symptoms are present, but symptoms should be checked before extended driving.

What it means: B104E Chrysler indicates Blend Door Control Circuit High.
Common causes: Common causes include Faulty Blend Door Actuator, Blend Door Actuator harness is open or shorted, Blend Door Actuator circuit poor electrical connection.
Severity: Low - monitor the vehicle and repair when practical.
Can I drive?: The vehicle can usually be driven if no severe symptoms are present, but symptoms should be checked before extended driving.

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Code Popularity 4,639

How popular is this code, among other codes? Low

Repair Importance Level

Low (Monitor) (1 / 3)

Repair Difficulty Level

Intermediate (2 / 3)

What is this?

Table of contents Created and updated by William Orellana on Mar 11, 2021

Description
Possible Causes
How To Fix
Cost to Diagnose
FAQs
Comments
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Code B104E Chrysler Description

The Powertrain Control Module (PCM) factors the Blend Door position and Blower Motor speed information into the coolant temperature modeling. This information is received as a raw voltage signal from the Heating, Ventilation, & Air Conditioning (HVAC) Module over the Can Bus.

OBDII Code B104E Chrysler - Blend Door Control Circuit High - AutoCodes.com — B104E Chrysler Code - Blend Door Control Circuit High

What does this mean?

What are the Possible Causes of the DTC B104E Chrysler?

Faulty Blend Door Actuator
Blend Door Actuator harness is open or shorted
Blend Door Actuator circuit poor electrical connection
Faulty Heating, Ventilation, & Air Conditioning (HVAC) Module

How to Fix the DTC B104E Chrysler?

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 is the Cost to Diagnose the Code?

Labor: 1.0

To diagnose the B104E Chrysler 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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Need more information on how to fix the B104E Chrysler code? Get Access to Factory Service Manuals

Need Help with the Code?

Get the B104E Chrysler code diagnosed by a professional: Find a repair shop in your area

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 B104E Chrysler Code

1. What are the common symptoms of OBDII code B104E Chrysler Blend Door Control Circuit High?

- Common symptoms include inconsistent air temperature from the HVAC system, inability to adjust air distribution, or the HVAC system blowing hot air when set to cold.

2. What are the possible causes of the B104E code related to the blend door control circuit?

- The code B104E can be triggered by issues such as a malfunctioning blend door actuator, a faulty blend door position sensor, wiring issues, or a defective HVAC control module.

3. How can I diagnose the B104E code in my Chrysler vehicle?

- Diagnosis typically involves using an OBDII scanner to read the code, followed by inspecting the blend door actuator, position sensor, and related wiring for any signs of damage or malfunction.

4. What are some repair tips for fixing the Blend Door Control Circuit High issue?

- Repair tips may include replacing the blend door actuator, repairing or replacing damaged wiring, recalibrating the HVAC system, or resetting the HVAC control module.

5. Can I continue driving my vehicle with the B104E code present?

- While it may be possible to drive with the code present, it is recommended to address the issue promptly to prevent further damage to the HVAC system or discomfort while driving.

6. How much does it typically cost to repair the B104E code in a Chrysler vehicle?

- Repair costs can vary depending on the specific cause of the issue, but it's advisable to budget for parts and labor expenses that may range from $100 to $500 or more.

7. Is the B104E code a common issue in Chrysler vehicles?

- The B104E code related to the blend door control circuit is a known issue in some Chrysler models, particularly those equipped with complex HVAC systems.

8. Can I reset the B104E code myself, or do I need a professional to clear it?

- You can attempt to clear the B104E code using an OBDII scanner, but if the underlying issue is not resolved, the code is likely to reappear. It's best to address the root cause of the problem first.

9. Are there any preventive measures I can take to avoid the B104E code in the future?

- Regular maintenance of the HVAC system, checking for unusual noises or odors, and addressing any HVAC issues promptly can help prevent the occurrence of the B104E code.

10. Will the B104E code affect the overall performance of my Chrysler vehicle?

- While the B104E code itself may not directly impact the vehicle's performance, it can lead to discomfort while driving due to issues with the HVAC system.