AutoCodes – Chevrolet – B1428 Chevrolet

B1428 Chevrolet Code - Ignition Switched Power Run/Crank Relay Circuit

Quick Answer

The Body Control Module (BCM) controls the Run/Crank relay through the run/crank relay coil control circuit by applying voltage to the circuit. Common causes include Faulty Ignition Switched Power Run/Crank Relay, Ignition Switched Power Run/Crank Relay harness is open or shorted, Ignition Switched Power Run/Crank Relay 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
B1428 Chevrolet indicates Ignition Switched Power Run/Crank Relay Circuit.
Common causes
Common causes include Faulty Ignition Switched Power Run/Crank Relay, Ignition Switched Power Run/Crank Relay harness is open or shorted, Ignition Switched Power Run/Crank Relay 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 7,598
How popular is this code, among other codes? Low
Table of contents Created and updated by William Orellana on Apr 09, 2019
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Code B1428 Chevrolet Description

The Body Control Module (BCM) controls the Run/Crank relay through the run/crank relay coil control circuit by applying voltage to the circuit. The Run/Crank relay is energized when the ignition switch is in ON or START, or when a remote start is requested. The OBDII codes set when the BCM detects a short to ground in the run/crank relay coil control circuit.
OBDII Code B1428 Chevrolet - Ignition Switched Power Run/Crank Relay Circuit - AutoCodes.com
B1428 Chevrolet Code - Ignition Switched Power Run/Crank Relay Circuit

What are the Possible Causes of the DTC B1428 Chevrolet?

  • Faulty Ignition Switched Power Run/Crank Relay
  • Ignition Switched Power Run/Crank Relay harness is open or shorted
  • Ignition Switched Power Run/Crank Relay circuit poor electrical connection
  • Faulty Body Control Module (BCM)

How to Fix the DTC B1428 Chevrolet?

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 B1428 Chevrolet 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 B1428 Chevrolet code?

Need more information on how to fix the B1428 Chevrolet code? Get Access to Factory Service Manuals

Need Help with the Code?

Get the B1428 Chevrolet 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 B1428 Chevrolet Code

1. What are the common symptoms of OBDII code B1428 on a Chevrolet vehicle?

- Common symptoms include difficulty starting the vehicle, intermittent stalling, and issues with the ignition system.

2. What can cause the OBDII code B1428 to appear on a Chevrolet?

- This code is typically triggered by a malfunction in the ignition switched power run/crank relay circuit, often due to a faulty relay, wiring issue, or a problem with the ignition switch.

3. How can I diagnose the source of the OBDII code B1428 on my Chevrolet?

- To diagnose the issue, you can perform a visual inspection of the relay and related wiring, use a multimeter to test for continuity and voltage, and check for any loose connections.

4. Are there any DIY repair tips for addressing the OBDII code B1428 on a Chevrolet?

- DIY repair tips include checking and replacing the faulty relay, repairing any damaged wiring, ensuring proper connections, and resetting the OBDII system to see if the code reappears.

5. Can driving with the OBDII code B1428 present cause further damage to my Chevrolet?

- Continuing to drive with this code present can potentially lead to more severe electrical problems, increased risk of stalling, and further damage to the ignition system components.

6. How urgent is it to address the OBDII code B1428 on a Chevrolet?

- It is recommended to address this code promptly to prevent potential issues with starting the vehicle, stalling while driving, and overall safety concerns related to the ignition system.

7. Will resetting the OBDII system clear the B1428 code on a Chevrolet?

- Resetting the OBDII system may temporarily clear the code, but if the underlying issue with the ignition switched power run/crank relay circuit is not resolved, the code is likely to reappear.

8. Is it safe to continue driving my Chevrolet if the OBDII code B1428 is intermittent?

- It is not advisable to continue driving if the code is intermittent, as it indicates an underlying problem that can worsen over time and potentially lead to unexpected stalling or ignition issues.

9. How much does it typically cost to repair the OBDII code B1428 on a Chevrolet at a professional repair shop?

- Repair costs can vary depending on the exact cause of the issue, but typically range from $100 to $300 for parts and labor to address the ignition switched power run/crank relay circuit problem.

10. Can a mechanic help me diagnose and repair the OBDII code B1428 on my Chevrolet?

- Yes, a qualified mechanic can perform diagnostics, pinpoint the exact cause of the code, and carry out the necessary repairs to resolve the ignition switched power run/crank relay circuit issue.

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