AutoCodes – Saturn – B1344 Saturn

B1344 Saturn Code - Mode Actuator

Quick Answer

The Instrument Panel Module (IPM) controls the HVAC door actuators to regulate the airflow through the Heating, Ventilation, and Air Conditioning (HVAC) system. Common causes include Faulty Mode Actuator, Mode Actuator harness is open or shorted, Mode Actuator 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: B1344 Saturn indicates Mode Actuator.
Common causes: Common causes include Faulty Mode Actuator, Mode Actuator harness is open or shorted, Mode Actuator 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 793

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 Mar 14, 2019

Description
Possible Causes
How To Fix
Cost to Diagnose
FAQs
Comments
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Code B1344 Saturn Description

The Instrument Panel Module (IPM) controls the HVAC door actuators to regulate the airflow through the Heating, Ventilation, and Air Conditioning (HVAC) system. Each actuator is a 5-wire bi-directional electric motor that incorporates a feedback potentiometer. Ignition 3 voltage, low reference, control, 5-volt reference and position signal circuits enable the actuator to operate. The control circuit uses either a 0, 2.5, or 5-volt signal to command the actuator movement. When the actuator is at rest, the control circuit value is 2.5 volts. A 0 or 5-volt control signal commands the actuator movement in opposite directions. When the actuator shaft rotates, the potentiometer's adjustable contact changes the door position signal between 0-5 volts. The IPM converts the voltage values to count values where one volt is approximately equal to 51 counts. The IPM uses a range of 0-255 counts to index the actuator position. The door position signal voltage is converted to a 0-255 count range. When the module sets a commanded, or targeted value, the control signal is changed to either 0 or 5 volts depending upon the direction that the actuator needs to rotate to reach the commanded value. As the actuator shaft rotates the changing position signal is sent to the module. Once the position signal and the commanded value are the same, the module changes the control signal to 2.5 volts.

OBDII Code B1344 Saturn - Mode Actuator - AutoCodes.com — B1344 Saturn Code - Mode Actuator

What does this mean?

What are the Possible Causes of the DTC B1344 Saturn?

Faulty Mode Actuator
Mode Actuator harness is open or shorted
Mode Actuator circuit poor electrical connection
Faulty Instrument Panel Module (IPM)

How to Fix the DTC B1344 Saturn?

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 B1344 Saturn 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 B1344 Saturn Code

1. What are common symptoms of OBDII code B1344 in a Saturn related to the Mode Actuator?

- Common symptoms include inconsistent or incorrect airflow direction from the vents, limited or no control over temperature settings, and potential issues with the HVAC system.

2. What can cause the OBDII code B1344 related to the Saturn Mode Actuator?

- The code B1344 can be triggered by a faulty mode actuator, a malfunctioning HVAC control module, wiring issues, or a blend door actuator problem.

3. How can I diagnose the OBDII code B1344 in my Saturn related to the Mode Actuator?

- Diagnosis typically involves using a scan tool to retrieve the specific fault code, inspecting the mode actuator and related components for any visible damage, and testing the electrical connections.

4. Is it safe to continue driving my Saturn with the OBDII code B1344 related to the Mode Actuator?

- While it may be safe to drive, it is recommended to address the issue promptly to prevent further damage to the HVAC system and ensure optimal climate control functionality.

5. Can I reset the OBDII code B1344 related to the Mode Actuator in my Saturn by disconnecting the battery?

- Disconnecting the battery may clear the code temporarily, but it is important to diagnose and fix the underlying issue causing the code to prevent it from reoccurring.

6. How much does it typically cost to repair the OBDII code B1344 in a Saturn related to the Mode Actuator?

- Repair costs can vary depending on the exact cause of the issue, but it may involve replacing the mode actuator, HVAC control module, or addressing wiring problems. Costs can range from $100 to $500 or more.

7. Are there any DIY tips for fixing the OBDII code B1344 related to the Mode Actuator in a Saturn?

- DIY tips include checking and securing electrical connections, inspecting for any visible damage to the mode actuator or related components, and following a repair manual or online guides for step-by-step instructions.

8. Can a mechanic easily fix the OBDII code B1344 related to the Mode Actuator in a Saturn?

- A skilled mechanic with experience in HVAC system repairs should be able to diagnose and fix the issue efficiently, ensuring proper functioning of the Mode Actuator in your Saturn.

9. Will fixing the OBDII code B1344 related to the Mode Actuator improve my Saturn's air conditioning and heating performance?

- Yes, addressing the Mode Actuator issue should help restore proper airflow, temperature control, and overall performance of your Saturn's HVAC system.

10. How long does it typically take to repair the OBDII code B1344 related to the Mode Actuator in a Saturn?

- The repair time can vary based on the exact cause of the issue and the complexity of the repair process, but it may take anywhere from 1 to 3 hours to complete the repair.