B1445 2016 GMC Sierra Code - Control Module Voltage Output Circuit
Quick Answer
The Body Control Module (BCM) controls the Retained Accessory Power Relay 1 and Retained Accessory Power Relay 2 through their control circuits by applying a voltage to the Retained Accessory Power Relay coil control circuit. Common causes include Faulty Retained Accessory Power Relay 1 or Retained Accessory Power Relay 2, Retained Accessory Power Relay harness is open or shorted, Retained Accessory Power 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
- B1445 2016 GMC Sierra indicates Control Module Voltage Output Circuit.
- Common causes
- Common causes include Faulty Retained Accessory Power Relay 1 or Retained Accessory Power Relay 2, Retained Accessory Power Relay harness is open or shorted, Retained Accessory Power 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.
Code B1445 2016 GMC Sierra Description
What are the Possible Causes of the DTC B1445 2016 GMC Sierra?
- Faulty Retained Accessory Power Relay 1 or Retained Accessory Power Relay 2
- Retained Accessory Power Relay harness is open or shorted
- Retained Accessory Power Relay circuit poor electrical connection
- Faulty Body Control Module (BCM)
How to Fix the DTC B1445 2016 GMC Sierra?
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 B1445 2016 GMC Sierra 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 B1445 2016 GMC Sierra code?
Need more information on how to fix the B1445 2016 GMC Sierra code? Get Access to Factory Service Manuals
Need Help with the Code?
Get the B1445 2016 GMC Sierra code diagnosed by a professional: Find a repair shop in your area
Frequently Asked Questions about B1445 2016 GMC Sierra Code
1. What does OBDII code B1445 mean on a 2016 GMC Sierra?
Code B1445 indicates an issue with the control module voltage output circuit, often linked to improper voltage readings or a malfunction in the associated circuit.
2. What are the common symptoms of code B1445 in a 2016 GMC Sierra?
Symptoms may include erratic electrical behavior, malfunctioning vehicle systems, or the illumination of the check engine light or other warning lights.
3. What causes the B1445 code to appear on a GMC Sierra?
Common causes include a faulty control module, damaged wiring or connectors, or loose connections within the voltage output circuit.
4. Is it safe to drive with the B1445 code on a 2016 GMC Sierra?
While the vehicle may still be drivable, ignoring the B1445 code can lead to further electrical issues or system malfunctions. It’s best to address it promptly.
5. How can I diagnose the B1445 code on my GMC Sierra?
Use an OBDII scanner to confirm the code, then inspect the control module, wiring, and connectors for damage, corrosion, or loose connections.
6. Can a dead battery cause the B1445 code in a 2016 GMC Sierra?
A weak or dead battery can contribute to voltage irregularities, which may trigger the B1445 code. Always check the battery voltage as part of the diagnosis.
7. What parts might need replacement to fix the B1445 code?
Potential replacements include the control module, damaged wiring, corroded connectors, or the battery if it’s not providing stable voltage.
8. How much does it cost to repair the B1445 code on a GMC Sierra?
Repair costs vary depending on the issue, but can range from $100 for wiring repairs to $500 or more for control module replacement.
9. Can I clear the B1445 code without repairs?
Clearing the code without addressing the root cause may result in it returning. Proper diagnosis and repair are necessary for a permanent fix.
10. Do I need a professional mechanic to fix the B1445 code on my 2016 GMC Sierra?
While basic inspections can be done at home, advanced diagnostics or control module replacements typically require professional expertise.
Discuss the causes and fixes for B1445 2016 GMC Sierra OBDII Code
Code B1445 2016 GMC Sierra comments
No comments found for this page.
Fix Your Car Smarter
Try the New AutoCodes App!
Get complete OBDII diagnostics, repair solutions, and cost estimates, plus AI chat support on demand.
