B1405 2015 GMC Sierra Code - Control Module Voltage Reference Output 2 Circuit
Quick Answer
The B1405 diagnostic trouble code (DTC) for a 2015 GMC Sierra relates to an issue with the Control Module Voltage Reference Output 2 Circuit. Common causes include Faulty control module, Wiring or connection issues, Corrosion or damage to electrical connectors. 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
- B1405 2015 GMC Sierra indicates Control Module Voltage Reference Output 2 Circuit.
- Common causes
- Common causes include Faulty control module, Wiring or connection issues, Corrosion or damage to electrical connectors.
- 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 B1405 2015 GMC Sierra Description
The B1405 diagnostic trouble code (DTC) for a 2015 GMC Sierra relates to an issue with the Control Module Voltage Reference Output 2 Circuit. This code indicates that there is a problem with the voltage reference output from a specific control module in the vehicle. The control module in question is responsible for regulating and providing voltage to various components within the vehicle's systems.
Common Causes of B1405 2015 GMC Sierra
- Faulty control module
- Wiring or connection issues
- Corrosion or damage to electrical connectors
- Voltage regulator malfunction
- Battery or charging system problems
Symptoms of B1405 2015 GMC Sierra
- Check Engine Light illuminated
- Erratic engine performance
- Poor fuel efficiency
- Stalling or rough idling
- Electrical issues such as malfunctioning gauges or warning lights
How to Fix B1405 2015 GMC Sierra
- Begin by diagnosing the specific control module that is causing the issue using a diagnostic scanner.
- Inspect the wiring and connectors associated with the control module for any damage or corrosion.
- Test the voltage regulator to ensure it is functioning correctly.
- Replace the faulty control module if necessary.
- Clear the DTC and perform a test drive to ensure the issue has been resolved.
Cost to Fix B1405 2015 GMC Sierra
The cost of repairing a B1405 code on a 2015 GMC Sierra can vary depending on the specific cause of the issue. In general, parts for this repair may range from $100 to $300, with labor costs adding an additional $100 to $200. Overall, the total repair cost could fall between $200 and $500. It's important to note that these estimates are rough figures, and actual costs may differ based on factors such as location, shop rates, and the extent of the repair needed. It is advisable to consult with a qualified mechanic or repair shop for a more accurate estimate.
Tech Notes for B1405 2015 GMC Sierra
B1405:03 Control Module Voltage Reference Output 2 Circuit Low Voltage
B1405:07 Control Module Voltage Reference Output 2 Circuit High Voltage
If the B1405 code is stored in the Seat Memory Control Module, check the Seat Motor and Seat Memory Control Module.
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Frequently Asked Questions about B1405 2015 GMC Sierra Code
What does the OBDII code B1405 mean on a 2015 GMC Sierra?
Code B1405 indicates an issue with the Control Module Voltage Reference Output 2 Circuit, which provides a stable voltage signal to certain sensors.
What are the common symptoms of code B1405 in a 2015 GMC Sierra?
Symptoms may include the check engine light or service light illuminating, erratic sensor readings, or poor engine performance.
What causes the B1405 code to appear on a 2015 GMC Sierra?
Common causes include damaged wiring, a faulty sensor, a malfunctioning control module, or poor electrical connections in the voltage reference circuit.
Can a faulty sensor trigger the B1405 code?
Yes, a malfunctioning sensor that relies on the voltage reference signal can cause this code to be stored.
How do I diagnose the B1405 code on a 2015 GMC Sierra?
Start by inspecting the wiring and connectors in the voltage reference circuit, testing the affected sensors, and using a multimeter to check for proper voltage output.
Is the B1405 code serious, and can I drive with it?
While the vehicle may still be drivable, this code can lead to incorrect sensor readings and performance issues, so it’s best to address it promptly.
What tools are needed to fix the B1405 code on a 2015 GMC Sierra?
You’ll need a diagnostic scanner, a multimeter, and possibly repair tools to fix damaged wiring or replace sensors.
Can clearing the code B1405 solve the problem?
Clearing the code may temporarily turn off the warning light, but the underlying issue needs to be fixed to prevent the code from returning.
How much does it typically cost to repair the B1405 code?
Repair costs vary depending on the root cause, ranging from $50 for simple wiring repairs to $500+ if the control module requires replacement.
Can a software update resolve the B1405 code on a 2015 GMC Sierra?
In rare cases, a software update from the manufacturer could resolve the issue if it’s related to a known firmware bug, but this is less common.
Discuss the causes and fixes for B1405 2015 GMC Sierra OBDII Code
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