AutoCodes – Oldsmobile – B1374 Oldsmobile

B1374 Oldsmobile 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 Oldsmobile 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 2,349
How popular is this code, among other codes? Low
Table of contents Created and updated by William Orellana on Mar 19, 2019
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Code B1374 Oldsmobile 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 Oldsmobile - Ignition 1 Fault - AutoCodes.com
B1374 Oldsmobile Code - Ignition 1 Fault

What are the Possible Causes of the DTC B1374 Oldsmobile?

  • 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 Oldsmobile?

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 Oldsmobile 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.

Need more information about the B1374 Oldsmobile code?

Need more information on how to fix the B1374 Oldsmobile code? Get Access to Factory Service Manuals

Need Help with the Code?

Get the B1374 Oldsmobile code diagnosed by a professional: Find a repair shop in your area

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 Oldsmobile Code

1. What are the common symptoms of OBDII code B1374 (Ignition 1 Fault) in an Oldsmobile?

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

2. What can cause the OBDII code B1374 (Ignition 1 Fault) to trigger in an Oldsmobile?

- This code can be triggered by faults in the ignition system, such as a malfunctioning ignition coil or ignition control module.

3. How can I diagnose the cause of OBDII code B1374 (Ignition 1 Fault) in my Oldsmobile?

- Diagnosing this code typically involves checking the ignition components for proper operation, including the ignition coil, ignition control module, and related wiring.

4. Are there any easy repair tips for fixing OBDII code B1374 (Ignition 1 Fault) in an Oldsmobile?

- Some common repair tips include checking and replacing faulty ignition components, ensuring proper wiring connections, and clearing the code to see if it reoccurs.

5. Can a DIY enthusiast fix OBDII code B1374 (Ignition 1 Fault) in an Oldsmobile?

- Depending on the root cause, DIY enthusiasts with automotive repair experience may be able to address this code by replacing faulty ignition components or checking wiring connections.

6. Is it safe to continue driving with OBDII code B1374 (Ignition 1 Fault) in an Oldsmobile?

- It is not recommended to drive the vehicle with this code present, as it can lead to potential engine performance issues and possible stalling, compromising safety.

7. How much does it typically cost to repair OBDII code B1374 (Ignition 1 Fault) in an Oldsmobile?

- The cost of repair can vary depending on the specific cause of the code, but it may involve expenses for parts replacement and labor, which can range from moderate to high.

8. Can weather conditions affect the triggering of OBDII code B1374 (Ignition 1 Fault) in an Oldsmobile?

- Extreme weather conditions, such as excessive heat or moisture, can potentially exacerbate ignition system issues and contribute to the triggering of this fault code.

9. Will resetting the OBDII system clear the B1374 (Ignition 1 Fault) code in an Oldsmobile?

- Resetting the OBDII system may temporarily clear the code, but if the underlying issue causing the fault is not addressed, the code is likely to reappear upon driving the vehicle.

10. How important is it to address OBDII code B1374 (Ignition 1 Fault) promptly in an Oldsmobile?

- It is essential to address this code promptly to prevent potential engine performance problems, stalling, or safety hazards while driving.

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