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B1372 Saturn Code - Device Ignition On and Start Circuit Low

Quick Answer

The B1372 diagnostic trouble code (DTC) for Saturn vehicles indicates a problem with the Device Ignition On and Start Circuit being low. Common causes include Faulty ignition switch, Wiring issues or shorts in the ignition circuit, Defective starter motor. 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
B1372 Saturn indicates Device Ignition On and Start Circuit Low.
Common causes
Common causes include Faulty ignition switch, Wiring issues or shorts in the ignition circuit, Defective starter motor.
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.
What is this?
Table of contents Created and updated by William Orellana on Sep 14, 2024
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Code B1372 Saturn Description

The B1372 diagnostic trouble code (DTC) for Saturn vehicles indicates a problem with the Device Ignition On and Start Circuit being low. This code typically points to an issue with the circuit that controls the ignition system and the starting of the vehicle. When this code is triggered, it means that the voltage in this circuit is lower than the expected range, which can lead to various performance issues and potential long-term effects if not addressed promptly.

OBDII Code B1372 Saturn - Device Ignition On and Start Circuit Low
B1372 Saturn Code - Device Ignition On and Start Circuit Low

Common Causes of B1372 Saturn

  1. Faulty ignition switch
  2. Wiring issues or shorts in the ignition circuit
  3. Defective starter motor
  4. Malfunctioning ignition relay
  5. Corrosion or poor connections in the circuit

Symptoms of B1372 Saturn

  1. Difficulty starting the vehicle
  2. Intermittent stalling
  3. Engine hesitation or misfiring
  4. Illumination of the check engine light
  5. Loss of power while driving

How to Fix B1372 Saturn

  1. Begin by conducting a thorough inspection of the ignition system and wiring to identify any visible damage or loose connections.
  2. Test the ignition switch, starter motor, and ignition relay using a multimeter to determine if they are functioning correctly.
  3. Replace any faulty components identified during testing, such as the ignition switch, starter motor, or relay.
  4. Clear the DTC from the vehicle's computer using a diagnostic tool to reset the system and see if the issue persists.
  5. Test drive the vehicle to ensure that the problem has been resolved and that the symptoms associated with the B1372 code no longer occur.

Cost to Fix B1372 Saturn

The typical repair costs for addressing a Device Ignition On and Start Circuit Low issue can vary depending on the specific cause of the problem and the parts needed for the repair. In general, the cost of parts for this repair can range from $50 to $200, while labor costs can add an additional $100 to $300. Overall, the total repair cost for this issue may fall between $150 and $500. It is important to note that these are rough estimates, and actual costs may vary based on factors such as location, vehicle make and model, and the specific diagnosis time and labor rates at auto repair shops. It is advisable to consult with a qualified mechanic or service center to get a more accurate estimate for addressing the B1372 code on a Saturn vehicle.

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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 B1372 Saturn Code

1. What are the common symptoms of OBDII code B1372 on a Saturn related to the Device Ignition On and Start Circuit Low?

The common symptoms include difficulty starting the vehicle, intermittent stalling, and the check engine light illuminating.

2. What are the possible causes of OBDII code B1372 on a Saturn?

Possible causes include a faulty ignition switch, damaged wiring in the ignition system, a malfunctioning starter relay, or a problem with the vehicle's computer system.

3. How can I diagnose the OBDII code B1372 on my Saturn?

Diagnosing this code typically involves using a diagnostic scanner to retrieve the trouble codes, checking the ignition system components for any visible damage, and testing the starter relay for proper functionality.

4. What are some repair tips for fixing OBDII code B1372 on a Saturn?

Some repair tips include inspecting and repairing any damaged wiring in the ignition system, replacing a faulty ignition switch, testing and replacing the starter relay if necessary, and resetting the code with a diagnostic scanner after repairs are completed.

5. Can I drive my Saturn with the OBDII code B1372 present?

It is not recommended to drive your Saturn with this code present, as it can lead to potential starting issues and stalling while driving, which can compromise safety.

6. How serious is the OBDII code B1372 on a Saturn?

While the code itself may not pose an immediate danger, it can cause starting and driving issues that may impact the vehicle's performance and reliability.

7. Can I reset the OBDII code B1372 on my Saturn without fixing the underlying issue?

Resetting the code without addressing the underlying problem may temporarily turn off the check engine light, but the issue will likely reoccur if the root cause is not fixed.

8. Is it necessary to take my Saturn to a mechanic for OBDII code B1372 repairs?

While some DIY enthusiasts may be able to diagnose and repair this code themselves, it is recommended to consult a qualified mechanic for proper diagnosis and repair to ensure the issue is resolved correctly.

9. How much does it typically cost to fix OBDII code B1372 on a Saturn?

The cost of repairs can vary depending on the specific cause of the code and the labor rates in your area, but it may range from $100 to $300 or more, including parts and labor.

10. How can I prevent OBDII code B1372 from appearing on my Saturn in the future?

Regular maintenance, such as checking and replacing worn ignition system components, ensuring proper wiring connections, and timely repairs of any related issues, can help prevent the recurrence of this code in the future.

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