AutoCodes – Chevrolet – B1527 2014 Chevrolet Silverado

B1527 2014 Chevrolet Silverado Code - Parasitic Load

Quick Answer

The components most likely to cause a parasitic draw on the battery of the vehicle are switches, relays, and control modules. Common causes include Faulty Battery, Low Battery Charge, Charging System. 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: B1527 2014 Chevrolet Silverado indicates Parasitic Load.
Common causes: Common causes include Faulty Battery, Low Battery Charge, Charging System.
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.

Save to My Repairs My Repairs

AI answers can be wrong. Verify repairs with testing. Open full chat

Code Popularity 538

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 Apr 21, 2023

Description
Possible Causes
How To Fix
Cost to Diagnose
FAQs
Comments
Add Comment

💬 Need more help? Ask Coddy for instant answers — it's free!

Code B1527 2014 Chevrolet Silverado Description

The components most likely to cause a parasitic draw on the battery of the vehicle are switches, relays, and control modules. After the ignition is turned OFF the control modules will begin to go to sleep (shut OFF). All control modules do not go to sleep at the same time, some, like the Heating, Ventilation, and Air-Conditioning (HVAC) and body control modules, may take up to 30 min or longer after turning the ignition off before going to sleep. Others such as the ON Star and keyless entry control modules may periodically wake up then go back to sleep. These are all normal conditions. The Body Control Module (BCM) monitors the state of charge of the electrical system. If the BCM senses that the state of charge at ignition On is 30% lower than what it was when the engine was running.

OBDII Code B1527 2014 Chevrolet Silverado - Parasitic Load - AutoCodes.com — B1527 2014 Chevrolet Silverado Code - Parasitic Load

What does this mean?

What are the Possible Causes of the DTC B1527 2014 Chevrolet Silverado?

Faulty Battery
Low Battery Charge
Charging System

How to Fix the DTC B1527 2014 Chevrolet Silverado?

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 B1527 2014 Chevrolet Silverado 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 B1527 2014 Chevrolet Silverado code?

Need more information on how to fix the B1527 2014 Chevrolet Silverado code? Get Access to Factory Service Manuals

Need Help with the Code?

Get the B1527 2014 Chevrolet Silverado 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 B1527 2014 Chevrolet Silverado Code

1. What does OBDII code B1527 mean on a 2014 Chevrolet Silverado?

Code B1527 indicates a "Parasitic Load," meaning the vehicle's electrical system is detecting excessive current draw while the ignition is off.

2. What are the common symptoms of code B1527 in a 2014 Chevy Silverado?

Symptoms may include a dead or frequently drained battery, difficulty starting the vehicle, and noticeable electrical issues like dim interior lights.

3. What causes the B1527 code in a Chevrolet Silverado?

Common causes include a faulty module or electrical component, a short circuit, or accessories like aftermarket electronics drawing excessive power when the vehicle is off.

4. Can a weak battery trigger code B1527?

Yes, a weak or failing battery can contribute to this code by making it harder for the system to regulate current flow properly.

5. How is code B1527 diagnosed?

A technician will use a multimeter to perform a parasitic draw test, check for excessive current flow, and inspect individual circuits and components for faults.

6. What are the most common repairs for code B1527?

Repairs may include replacing a faulty module, repairing damaged wiring, or disconnecting aftermarket accessories that are improperly installed.

7. Can a faulty alternator cause code B1527 in a 2014 Silverado?

While uncommon, a malfunctioning alternator with a faulty diode can cause excessive current draw and potentially trigger this code.

8. How much parasitic draw is considered normal for a 2014 Chevy Silverado?

Normal parasitic draw should be less than 50 milliamps (0.05 amps). Anything significantly higher may indicate an issue.

9. Can I fix code B1527 myself?

If you're comfortable with basic electrical testing, you can attempt to locate the source of the draw. However, complex issues or module failures may require professional assistance.

10. Will clearing code B1527 fix the issue permanently?

Clearing the code without addressing the root cause will not fix the problem. The code will likely return until the parasitic load is resolved.