AutoCodes – Chrysler – B11C9 Chrysler

B11C9 Chrysler Code - Right Temperature Door Travel Too Small

Quick Answer

After the initial installation of the A/C Heater Module, the controller is calibrated to each individual blend/mode door actuator. Common causes include Passenger Blend Door Binding, Faulty Passenger Blend Door Actuator, Passenger Blend Door Actuator harness is open or shorted. 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: B11C9 Chrysler indicates Right Temperature Door Travel Too Small.
Common causes: Common causes include Passenger Blend Door Binding, Faulty Passenger Blend Door Actuator, Passenger Blend Door Actuator harness is open or shorted.
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 3,974

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 Nov 19, 2024

Description
Possible Causes
How To Fix
Cost to Diagnose
FAQs
Comments
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Code B11C9 Chrysler Description

After the initial installation of the A/C Heater Module, the controller is calibrated to each individual blend/mode door actuator. These calibrations are stored as in the number of pulses it takes to move the door from one stop to another. The A/C Heater Module drives the Door Actuators by the use of Door Driver circuit and a Common Door Driver circuit and monitors all door actuator pulses to detect door movement in both directions. Most of the door actuators share a common door driver circuit but each door actuator has its own unique driver circuit. Due to shared circuitry, similar Diagnostic Trouble Codes (DTCs) can set at the same time for multiple actuators depending upon the type of circuit malfunction, its location, and the direction the actuator is moving when the malfunction is present. For further information.

OBDII Code B11C9 Chrysler - Right Temperature Door Travel Too Small - AutoCodes.com — B11C9 Chrysler Code - Right Temperature Door Travel Too Small

What does this mean?

What are the Possible Causes of the DTC B11C9 Chrysler?

Passenger Blend Door Binding
Faulty Passenger Blend Door Actuator
Passenger Blend Door Actuator harness is open or shorted
Passenger Blend Door Actuator circuit poor electrical connection
Faulty A/C Heater Module

How to Fix the DTC B11C9 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 B11C9 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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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 B11C9 Chrysler Code

1. What are the common symptoms of OBDII code B11C9 Chrysler (Right Temperature Door Travel Too Small)?

- Common symptoms include inconsistent temperature control on the passenger side, unusual noises coming from the HVAC system, and a malfunctioning heater or air conditioner.

2. What could be causing the OBDII code B11C9 Chrysler to trigger?

- The code B11C9 Chrysler is typically triggered by a malfunction in the right temperature door actuator or a problem with the HVAC system's calibration.

3. How can I diagnose the issue causing OBDII code B11C9 Chrysler?

- Diagnosis involves using a scan tool to retrieve the trouble code, checking the right temperature door actuator for proper operation, and inspecting the HVAC system for any visible damage or obstructions.

4. What are some repair tips for resolving OBDII code B11C9 Chrysler?

- Repair tips include replacing the right temperature door actuator if faulty, recalibrating the HVAC system, and ensuring all HVAC components are properly connected and functioning.

5. Can I drive my vehicle with OBDII code B11C9 Chrysler active?

- It is not recommended to drive with the B11C9 code active, as it can lead to further HVAC system issues and discomfort for passengers due to inconsistent temperature control.

6. How much does it typically cost to repair OBDII code B11C9 Chrysler?

- The cost of repairs for the B11C9 code can vary depending on the extent of the issue, but it may involve a few hundred dollars for parts and labor.

7. Are there any DIY solutions for fixing OBDII code B11C9 Chrysler?

- DIY solutions for the B11C9 code may include checking and replacing the right temperature door actuator yourself if you have the necessary tools and expertise.

8. Is the OBDII code B11C9 Chrysler a common issue in Chrysler vehicles?

- The B11C9 Chrysler code is a known issue in some Chrysler vehicles, particularly those equipped with dual-zone climate control systems.

9. How long does it typically take to repair OBDII code B11C9 Chrysler?

- The repair time for the B11C9 code can vary depending on the exact cause of the issue, but it may take a few hours to complete the necessary diagnostics and repairs.

10. Can ignoring OBDII code B11C9 Chrysler cause further damage to my vehicle?

- Ignoring the B11C9 code can potentially lead to further damage to the HVAC system and may result in more costly repairs down the line if left unresolved.