AutoCodes – Saturn – B1374 Saturn

B1374 Saturn Code - Ignition 1 Fault

Quick Answer

The Diagnostic Trouble Code (DTC) B1374 will set if IGNITION 1 input is not active after the engine has been running for 20 seconds. Common causes include Faulty Body Control Module (BCM), Body Control Module (BCM) harness is open or shorted, Body Control Module (BCM) 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: B1374 Saturn indicates Ignition 1 Fault.
Common causes: Common causes include Faulty Body Control Module (BCM), Body Control Module (BCM) harness is open or shorted, Body Control Module (BCM) 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 860

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 19, 2019

Description
Possible Causes
How To Fix
Cost to Diagnose
FAQs
Comments
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Code B1374 Saturn Description

The Diagnostic Trouble Code (DTC) B1374 will set if IGNITION 1 input is not active after the engine has been running for 20 seconds. When DTC is present, SERVICE VEHICLE SOON indicator illuminates and check gauges chime will sound. A current DTC B1374 will clear when the fault is no longer present and the ignition switch is cycled. A history DTC B1374 clears when module ignition cycle counter reaches reset threshold, without a repeat of malfunction.

OBDII Code B1374 Saturn - Ignition 1 Fault - AutoCodes.com — B1374 Saturn Code - Ignition 1 Fault

What does this mean?

What are the Possible Causes of the DTC B1374 Saturn?

Faulty Body Control Module (BCM)
Body Control Module (BCM) harness is open or shorted
Body Control Module (BCM) circuit poor electrical connection
Faulty Instrument Panel Cluster (IPC)

How to Fix the DTC B1374 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 B1374 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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Need more information on how to fix the B1374 Saturn code? Get Access to Factory Service Manuals

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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 B1374 Saturn Code

1. What does OBDII code B1374 Saturn, Ignition 1 Fault, indicate?

The B1374 code indicates a fault in the Ignition 1 circuit of the vehicle's electrical system.

2. What are the common symptoms of OBDII code B1374 Saturn?

Common symptoms of code B1374 include issues with starting the vehicle, engine misfires, rough idling, and potential stalling.

3. What are the possible causes of OBDII code B1374 Saturn?

Possible causes of code B1374 include faulty ignition coils, damaged wiring or connectors in the Ignition 1 circuit, a defective ignition control module, or a problem with the Engine Control Module (ECM).

4. How can I diagnose OBDII code B1374 Saturn?

Diagnosing code B1374 typically involves using a scan tool to retrieve the code, checking the Ignition 1 circuit for continuity, inspecting the ignition components for damage, and testing the ECM for proper function.

5. How can I repair OBDII code B1374 Saturn?

Repairing code B1374 may involve replacing faulty ignition coils, repairing damaged wiring or connectors, replacing the ignition control module, or addressing any issues with the ECM.

6. Can I drive my vehicle with OBDII code B1374 Saturn?

It is not recommended to drive your vehicle with an unresolved B1374 code, as it can lead to further damage and potential safety hazards.

7. How much does it cost to fix OBDII code B1374 Saturn?

The cost of repairing code B1374 can vary depending on the specific cause of the issue, but it may range from a few hundred to a few thousand dollars, including parts and labor.

8. Will resetting the check engine light clear OBDII code B1374 Saturn?

Resetting the check engine light may temporarily clear the code, but if the underlying issue is not addressed, the code is likely to return.

9. How long does it take to fix OBDII code B1374 Saturn?

The time required to fix code B1374 can vary based on the complexity of the issue and the availability of parts, but it may take a few hours to a full day for the repair to be completed.

10. Can a DIY enthusiast fix OBDII code B1374 Saturn?

While some DIY enthusiasts may be able to diagnose and repair code B1374, it is recommended to seek professional help, especially if you are not experienced with automotive electrical systems.