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B1370 2018 Chevrolet Silverado Code - Control Module Ignition ON and Start Circuit

Quick Answer

The B1370 diagnostic trouble code (DTC) for a 2018 Chevrolet Silverado relates to the Control Module Ignition ON and Start Circuit. Common causes include Faulty ignition control module, Damaged wiring or connectors in the ignition circuit, Failed ignition switch. 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 2018 Chevrolet Silverado indicates Control Module Ignition ON and Start Circuit.
Common causes
Common causes include Faulty ignition control module, Damaged wiring or connectors in the ignition circuit, Failed ignition switch.
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 17, 2024
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Code B1370 2018 Chevrolet Silverado Description

The B1370 diagnostic trouble code (DTC) for a 2018 Chevrolet Silverado relates to the Control Module Ignition ON and Start Circuit. This code indicates a problem with the circuit that controls the ignition system when the vehicle is turned on and started. The ignition system is crucial for starting the engine and ensuring proper operation of the vehicle. When this circuit malfunctions, it can lead to issues with starting the vehicle, as well as potential performance problems while driving.

OBDII Code B1370 2018 Chevrolet Silverado - Control Module Ignition ON and Start Circuit
B1370 2018 Chevrolet Silverado Code - Control Module Ignition ON and Start Circuit

Common Causes of B1370 2018 Chevrolet Silverado

  1. Faulty ignition control module
  2. Damaged wiring or connectors in the ignition circuit
  3. Failed ignition switch
  4. Defective ignition relay
  5. Issues with the engine control module (ECM)

Symptoms of B1370 2018 Chevrolet Silverado

  1. Engine cranks but does not start
  2. Engine stalls shortly after starting
  3. Loss of power while driving
  4. Rough idling
  5. Check Engine Light illuminated

How to Fix B1370 2018 Chevrolet Silverado

  1. Perform a diagnostic scan to retrieve the DTC and identify the specific cause of the issue.
  2. Inspect the ignition control module and related components for any signs of damage or malfunction.
  3. Check the wiring and connectors in the ignition circuit for loose connections or breaks.
  4. Test the ignition switch and relay for proper operation and replace if necessary.
  5. Clear the DTC and perform a test drive to ensure the issue has been resolved.

Cost to Fix B1370 2018 Chevrolet Silverado

The typical repair costs for addressing a B1370 DTC in a 2018 Chevrolet Silverado can vary depending on the specific cause of the issue. Parts such as an ignition control module or ignition switch may range from $50 to $200, while labor costs can add an additional $100 to $300. Overall, the total repair cost for this issue could range from $150 to $500. It's important to note that diagnosis time and labor rates at auto repair shops can vary, so it's advisable to check local rates for a more accurate estimate.

What does this mean?

Tech Notes for B1370 2018 Chevrolet Silverado

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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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 2018 Chevrolet Silverado Code

1. What does OBDII code B1370 for a 2018 Chevrolet Silverado indicate?

The code B1370 for a 2018 Chevrolet Silverado relates to an issue with the Control Module Ignition ON and Start Circuit.

2. What are common symptoms of OBDII code B1370 in a 2018 Chevrolet Silverado?

Common symptoms of code B1370 may include difficulty starting the vehicle, intermittent starting problems, and the engine not turning over.

3. What are the possible causes of OBDII code B1370 in a 2018 Chevrolet Silverado?

Potential causes of code B1370 in a 2018 Chevrolet Silverado include a faulty ignition switch, wiring issues in the ignition circuit, or a malfunctioning control module.

4. How can I diagnose OBDII code B1370 in my 2018 Chevrolet Silverado?

Diagnosing code B1370 involves checking the ignition switch, inspecting the wiring for any damage, and using a diagnostic scanner to identify the specific issue with the control module.

5. Can I still drive my 2018 Chevrolet Silverado with OBDII code B1370?

It is not recommended to drive your vehicle if you are experiencing code B1370 issues, as it may lead to potential starting problems or engine stalling while driving.

6. How can I repair OBDII code B1370 in my 2018 Chevrolet Silverado?

Repairing code B1370 may involve replacing a faulty ignition switch, repairing any damaged wiring, or reprogramming the control module to resolve the issue.

7. Is it possible to reset OBDII code B1370 in a 2018 Chevrolet Silverado without fixing the underlying issue?

Resetting the code without fixing the underlying issue will only temporarily clear the error code, and the problem is likely to reoccur until the root cause is addressed.

8. Will OBDII code B1370 in a 2018 Chevrolet Silverado cause any long-term damage if not repaired promptly?

Ignoring code B1370 in your 2018 Chevrolet Silverado can potentially lead to more severe starting issues, electrical problems, or complete engine failure if left unresolved.

9. Can extreme weather conditions affect the occurrence of OBDII code B1370 in a 2018 Chevrolet Silverado?

Extreme weather conditions, such as extreme heat or cold, can sometimes exacerbate issues related to code B1370 due to the strain they put on the vehicle's electrical components.

10. Is it possible to prevent OBDII code B1370 from occurring in my 2018 Chevrolet Silverado?

Regular maintenance, checking the ignition system for any signs of wear, and addressing any electrical issues promptly can help prevent the occurrence of code B1370 in your 2018 Chevrolet Silverado.

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