Engine-CodesChevrolet – B1370 Chevrolet

B1370 Chevrolet Code - Control Module Ignition ON and Start Circuit

Quick Answer

The B1370 code for Chevrolet vehicles refers to an issue with the Control Module Ignition ON and Start Circuit. Common causes include Faulty ignition switch, Wiring issues or shorts in the ignition circuit, Defective control module. 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
B1370 Chevrolet indicates Control Module Ignition ON and Start Circuit.
Common causes
Common causes include Faulty ignition switch, Wiring issues or shorts in the ignition circuit, Defective control module.
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.
Table of contents Created and updated by William Orellana on Sep 06, 2024
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Code B1370 Chevrolet Description

The B1370 code for Chevrolet vehicles refers to an issue with the Control Module Ignition ON and Start Circuit. This code indicates that there is a malfunction in the circuit that controls the ignition system when the vehicle is turned on or started. The control module is a crucial component that manages various functions within the vehicle, including starting the engine, so any issues with this circuit can have significant implications for the vehicle's performance.

OBDII Code B1370 Chevrolet - Control Module Ignition ON and Start Circuit
B1370 Chevrolet Code - Control Module Ignition ON and Start Circuit

Common Causes of B1370 Chevrolet

  1. Faulty ignition switch
  2. Wiring issues or shorts in the ignition circuit
  3. Defective control module
  4. Corrosion or poor connections in the circuit
  5. Electrical system malfunctions

Symptoms of B1370 Chevrolet

  1. Difficulty starting the vehicle
  2. Intermittent starting problems
  3. Engine stalling or misfiring
  4. Check Engine Light illuminated
  5. Loss of power or acceleration

How to Fix B1370 Chevrolet

  1. Diagnose the issue using a diagnostic scanner to pinpoint the exact cause of the code.
  2. Inspect the ignition switch and wiring for any visible damage or wear.
  3. Test the control module for proper function and replace if necessary.
  4. Repair any corroded connections or replace damaged wiring.
  5. Clear the code from the vehicle's computer and test the vehicle to ensure the issue has been resolved.

Cost to Fix B1370 Chevrolet

The typical repair costs for a B1370 Chevrolet code can range from $200 to $500, including parts and labor. However, the specific diagnosis time and labor rates at auto repair shops can vary depending on the location, vehicle make and model, and engine type. It is recommended to check with local shops for a more accurate estimate before proceeding with the repair.

Tech Notes for B1370 Chevrolet

B1370:01 Control Module Ignition ON and Start Circuit Short to Battery
B1370:04 Control Module Ignition ON and Start Circuit Short to Ground or Open




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Information for Specific Chevrolet Models

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 B1370 Chevrolet Code

1. What are the common symptoms of OBDII code B1370 in a Chevrolet related to the Control Module Ignition ON and Start Circuit?

- Common symptoms include issues with starting the vehicle, failure of the ignition system, and potential stalling while driving.

2. What are the typical causes of OBDII code B1370 in a Chevrolet?

- The code B1370 is usually triggered by a malfunction in the ignition ON and start circuit control module, which could be caused by wiring issues, a faulty ignition switch, or a defective control module.

3. How can I diagnose the OBDII code B1370 in my Chevrolet?

- Diagnosis involves using a scan tool to retrieve the code, checking the wiring and connections related to the ignition circuit, and testing the ignition switch and control module for proper functionality.

4. Can a DIY enthusiast repair the OBDII code B1370 in a Chevrolet?

- While some basic troubleshooting like checking connections and fuses can be done by DIY enthusiasts, repairing issues related to the control module ignition ON and start circuit may require advanced knowledge and tools, so it's recommended to consult a professional mechanic.

5. Is it safe to continue driving with OBDII code B1370 present in a Chevrolet?

- It is not recommended to continue driving with the code B1370 active, as it can lead to potential starting problems or stalling while driving, which may compromise safety.

6. How much does it typically cost to repair OBDII code B1370 in a Chevrolet?

- The cost of repairing OBDII code B1370 can vary depending on the root cause of the issue, but it may involve replacing faulty components, which could range from a few hundred to a thousand dollars including parts and labor.

7. Are there any preventive maintenance tips to avoid OBDII code B1370 in a Chevrolet?

- To prevent issues related to the control module ignition ON and start circuit, it's advisable to regularly check the condition of the ignition system components, ensure proper wiring connections, and address any electrical issues promptly.

8. Can a weak battery cause OBDII code B1370 to trigger in a Chevrolet?

- Yes, a weak or failing battery can sometimes lead to electrical issues that trigger the OBDII code B1370 related to the control module ignition ON and start circuit. It's important to ensure the battery is in good condition.

9. Will resetting the OBDII code B1370 in a Chevrolet make the issue go away permanently?

- Resetting the code may temporarily clear the warning light, but if the underlying issue causing the code is not addressed, it is likely to reoccur. It's essential to diagnose and repair the root cause of the problem.

10. How long does it take to repair OBDII code B1370 in a Chevrolet?

- The repair time for OBDII code B1370 can vary based on the specific cause of the issue and the complexity of the repair needed. It may take a few hours to a day for a mechanic to diagnose and fix the problem effectively.

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