B1445 2018 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 2018 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 2018 GMC Sierra Description
What are the Possible Causes of the DTC B1445 2018 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 2018 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 2018 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 2018 GMC Sierra code?
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Frequently Asked Questions about B1445 2018 GMC Sierra Code
1. What are the common symptoms of OBDII code B1445 in a 2018 GMC Sierra?
- Common symptoms include issues with the vehicle's electrical system, such as erratic behavior of electronic components or warning lights on the dashboard.
2. What does the OBDII code B1445 for a 2018 GMC Sierra indicate?
- The code B1445 specifically refers to a Control Module Voltage Output Circuit problem in the vehicle.
3. What are possible causes of OBDII code B1445 in a 2018 GMC Sierra?
- The code B1445 can be triggered by issues such as a faulty control module, wiring problems, or a malfunctioning voltage regulator.
4. How can I diagnose the Control Module Voltage Output Circuit issue related to OBDII code B1445 in my 2018 GMC Sierra?
- Diagnosis typically involves checking the wiring connections, inspecting the control module for damage, and testing the voltage regulator for proper functioning.
5. Can I continue driving my 2018 GMC Sierra with OBDII code B1445 without immediate repairs?
- It is not recommended to ignore OBDII code B1445, as it can lead to further electrical system problems or even potential safety hazards. It is advisable to address the issue promptly.
6. Are there any DIY repair tips for fixing OBDII code B1445 in a 2018 GMC Sierra?
- DIY repair for this code may involve checking and securing wiring connections, replacing a faulty control module, or repairing a malfunctioning voltage regulator. However, it is recommended to consult a professional for accurate diagnosis and repair.
7. How much does it typically cost to repair OBDII code B1445 in a 2018 GMC Sierra?
- The cost of repair can vary depending on the exact cause of the issue. It may involve expenses for parts replacement, labor costs, and diagnostic fees. It's best to get estimates from reputable automotive shops.
8. Can a faulty battery be a potential cause of OBDII code B1445 in a 2018 GMC Sierra?
- Yes, a weak or faulty battery can sometimes lead to voltage output circuit issues, triggering the OBDII code B1445. It's advisable to ensure the battery is in good condition during diagnosis.
9. Is it necessary to reset the OBDII code B1445 after making repairs to the Control Module Voltage Output Circuit in a 2018 GMC Sierra?
- Yes, it is recommended to reset the code after repairs have been made. This can be done with an OBDII scanner or by disconnecting the vehicle's battery for a few minutes.
10. What steps should I take if the OBDII code B1445 persists in my 2018 GMC Sierra after repairs?
- If the code continues to appear after repairs, further diagnosis may be needed to identify any underlying issues that were not initially addressed. Consulting a professional mechanic or dealership is advisable in such cases.
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