AutoCodes – Cadillac – B1374 Cadillac

B1374 Cadillac 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 Cadillac 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 699

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 Cadillac 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 Cadillac - Ignition 1 Fault - AutoCodes.com — B1374 Cadillac Code - Ignition 1 Fault

What does this mean?

What are the Possible Causes of the DTC B1374 Cadillac?

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 Cadillac?

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 Cadillac 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 Cadillac code?

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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 Cadillac Code

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

- Common symptoms of B1374 Cadillac include difficulty starting the vehicle, engine stalling, and issues with the ignition system.

2. What are the possible causes of OBDII code B1374 Cadillac?

- The code B1374 Cadillac can be triggered by a faulty ignition switch, poor electrical connections, or issues with the ignition 1 circuit.

3. How can I diagnose the source of OBDII code B1374 Cadillac?

- Diagnosing B1374 Cadillac involves using a scan tool to retrieve the code, checking the ignition system components, and testing the electrical connections for faults.

4. Is it safe to continue driving with OBDII code B1374 Cadillac present?

- It is not recommended to drive with B1374 Cadillac as it can lead to potential issues with starting the vehicle or engine stalling while driving.

5. How can I reset OBDII code B1374 Cadillac after repairs?

- After the necessary repairs have been made to address B1374 Cadillac, the code can be reset using a scan tool to clear the fault code from the vehicle's system.

6. Are there any DIY repair tips for fixing OBDII code B1374 Cadillac?

- DIY repair tips for B1374 Cadillac include checking and cleaning electrical connections, inspecting the ignition switch for wear or damage, and ensuring proper wiring connections.

7. Can a faulty ignition switch cause OBDII code B1374 Cadillac?

- Yes, a faulty ignition switch is a common cause of OBDII code B1374 Cadillac as it can disrupt the proper functioning of the ignition 1 circuit.

8. How long does it typically take to repair OBDII code B1374 Cadillac?

- The repair time for B1374 Cadillac can vary depending on the specific cause of the issue, but it generally takes a few hours to diagnose and fix the problem.

9. Will OBDII code B1374 Cadillac affect the overall performance of the vehicle?

- Yes, B1374 Cadillac can affect the overall performance of the vehicle by causing starting issues, engine stalling, or other ignition-related problems.

10. Are there any recalls related to OBDII code B1374 Cadillac for certain Cadillac models?

- It is recommended to check with Cadillac or the National Highway Traffic Safety Administration (NHTSA) for any recalls related to OBDII code B1374 on specific Cadillac models.