B1045 2016 Chevrolet Silverado Code - Left Rear Door Audio Output 3 Circuit
Quick Answer
Vehicles without Amplifier: Each of the audio output channel circuits (+) and (-), at the radio have a DC bias voltage that is approximately one-half of battery voltage. Common causes include Faulty Radio Unit, Faulty Audio Amplifier (If equipped), Faulty Left Rear Door Speaker (Subwoofer for vehicles with Amplifier). Severity is Low - monitor the vehicle and repair when practical. The vehicle can usually be driven if no severe symptoms are present, but symptoms should be checked before extended driving.
- What it means
- B1045 2016 Chevrolet Silverado indicates Left Rear Door Audio Output 3 Circuit.
- Common causes
- Common causes include Faulty Radio Unit, Faulty Audio Amplifier (If equipped), Faulty Left Rear Door Speaker (Subwoofer for vehicles with Amplifier).
- Severity
- Low - monitor the vehicle and repair when practical.
- Can I drive?
- The vehicle can usually be driven if no severe symptoms are present, but symptoms should be checked before extended driving.
Code B1045 2016 Chevrolet Silverado Description
Each of the audio output channel circuits (+) and (-), at the radio have a DC bias voltage that is approximately one-half of battery voltage. When using a DMM, each of the audio output channel circuits will measure approximately 6.5 V DC. The audio being played on the system is produced by a varying AC voltage that is centered around the DC bias voltage on the same circuit. The AC voltage is what causes the speaker cone to move and produce sound. The frequency (Hz) of the AC voltage signal is directly related to the frequency of the input (audio source playing) to the audio system. Both the DC bias voltage and the AC voltage signals are needed for the audio system to properly produce sound.
Vehicles with Amplifier:
The Media Oriented Systems Transport (MOST) is a high-speed multimedia network technology. The serial MOST bus uses a ring topology and synchronous data communication to transmit audio, video, data and control information between any devices attached.
The audio amplifier is a participant on the MOST network. The audio amplifier receives audio input and control information from the MOST bus.
Each of the audio output channel circuits (+) and (−), at the audio amplifier have a DC bias voltage that is approximately one-half of the battery voltage. When using a DMM, each of the audio output channel circuits will measure approximately 6.5V DC. The audio being played on the system is produced by a varying AC voltage that is centered around the DC bias voltage on the same circuit. The AC voltage is what causes the speaker cone to move and produce sound.
What are the Possible Causes of the DTC B1045 2016 Chevrolet Silverado?
- Faulty Radio Unit
- Faulty Audio Amplifier (If equipped)
- Faulty Left Rear Door Speaker (Subwoofer for vehicles with Amplifier)
- Left Rear Door Speaker (Subwoofer for vehicles with Amplifier) harness is open or shorted
- Left Rear Door Speaker (Subwoofer for vehicles with Amplifier) circuit poor electrical connection
How to Fix the DTC B1045 2016 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.
Code Tech Notes
B1045:02 Left Rear Door Audio Output 3 Circuit Short to Ground
B1045:04 Left Rear Door Audio Output 3 Circuit Open
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What is the Cost to Diagnose the Code?
Labor: 1.0
To diagnose the B1045 2016 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.
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Frequently Asked Questions about B1045 2016 Chevrolet Silverado Code
1. What are the common symptoms of OBDII code B1045 in a 2016 Chevrolet Silverado related to the Left Rear Door Audio Output 3 Circuit?
- The common symptoms include no sound from the left rear door speaker or distorted audio coming from that speaker.
2. What are the possible causes of OBDII code B1045 in a 2016 Chevrolet Silverado?
- The code B1045 can be caused by a faulty speaker, damaged wiring, loose connections, or a malfunctioning audio amplifier.
3. How can I diagnose the issue causing OBDII code B1045 in my 2016 Chevrolet Silverado?
- You can start by checking the speaker in the left rear door for any physical damage. Then, inspect the wiring and connections for any signs of wear or looseness.
4. Is it possible to repair the Left Rear Door Audio Output 3 Circuit issue causing OBDII code B1045 in a 2016 Chevrolet Silverado myself?
- Depending on your automotive repair skills, you may be able to repair the issue yourself by replacing the faulty speaker, repairing damaged wiring, or securing loose connections.
5. Can OBDII code B1045 in a 2016 Chevrolet Silverado impact the overall audio system of the vehicle?
- Yes, if left unresolved, the issue causing code B1045 can affect the overall audio quality in your Chevrolet Silverado by disrupting the sound output from the left rear door speaker.
6. Should I reset the OBDII code B1045 in my 2016 Chevrolet Silverado after fixing the Left Rear Door Audio Output 3 Circuit issue?
- Yes, it is recommended to reset the code using an OBDII scanner after resolving the underlying problem. This will clear the error code and ensure proper functioning of the audio system.
7. Is it safe to continue driving my 2016 Chevrolet Silverado with OBDII code B1045 related to the Left Rear Door Audio Output 3 Circuit?
- It is generally safe to drive the vehicle with this code, but it is advisable to address the issue promptly to prevent any further audio system complications.
8. Can extreme weather conditions contribute to triggering OBDII code B1045 in a 2016 Chevrolet Silverado?
- Extreme temperatures or moisture exposure can potentially damage the speaker or wiring in the left rear door, leading to the occurrence of code B1045.
9. How much can I expect to pay for professional repair of OBDII code B1045 in a 2016 Chevrolet Silverado?
- The cost of professional repair for this code can vary depending on the exact cause of the issue, but it typically ranges from $100 to $300, including parts and labor.
10. Are there any preventive measures I can take to avoid OBDII code B1045 in my 2016 Chevrolet Silverado in the future?
- Regularly inspecting and maintaining the audio system components, such as speakers and wiring, can help prevent issues like code B1045 from occurring.
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