B1445 2015 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 2015 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 2015 GMC Sierra Description
What are the Possible Causes of the DTC B1445 2015 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 2015 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 2015 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.
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Frequently Asked Questions about B1445 2015 GMC Sierra Code
1. What does the OBDII code B1445 mean on a 2015 GMC Sierra?
B1445 indicates an issue with the control module voltage output circuit, suggesting a malfunction in the circuit responsible for voltage delivery to a specific component.
2. What are the common symptoms of code B1445 in a 2015 GMC Sierra?
Symptoms may include erratic electrical behavior, warning lights on the dashboard, malfunctioning accessories, or intermittent power to certain components.
3. What causes the B1445 code to appear in a 2015 GMC Sierra?
Common causes include a faulty control module, damaged wiring, poor electrical connections, or a failed component relying on the voltage output circuit.
4. Can I drive my 2015 GMC Sierra with a B1445 code?
While the vehicle may still be drivable, ignoring the code can lead to further electrical issues or the failure of critical components. Prompt diagnosis is recommended.
5. How is the B1445 code diagnosed?
A technician will use a scan tool to confirm the code, inspect the wiring and connections, and test the control module and related components for proper voltage and continuity.
6. Can a loose connection cause the B1445 code in a 2015 GMC Sierra?
Yes, a loose or corroded electrical connection can disrupt the voltage output circuit and trigger the B1445 code.
7. What repairs are needed to fix the B1445 code on a 2015 GMC Sierra?
Repairs may include fixing or replacing damaged wiring, cleaning and tightening connections, or replacing a faulty control module or related component.
8. How much does it cost to fix the B1445 code on a 2015 GMC Sierra?
Repair costs vary depending on the issue but may range from $100 for minor wiring repairs to $500 or more if the control module needs replacement.
9. Can a dead battery cause the B1445 code in a 2015 GMC Sierra?
A weak or dead battery can sometimes contribute to voltage-related issues, but the code typically points to a problem in the specific output circuit.
10. How can I prevent the B1445 code from occurring again?
Regular maintenance, including inspecting electrical connections and ensuring components are in good condition, can help prevent this issue.
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