AutoCodes – GMC – B2805 GMC

B2805 GMC Code - No transmitters Programmed

Quick Answer

When a receiver is replaced, all transmitters must be programmed to a new electronic door lock receiver. Common causes include Program transmitters, Faulty Remote control door lock receiver, Remote control door lock receiver harness is open or shorted. 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
B2805 GMC indicates No transmitters Programmed.
Common causes
Common causes include Program transmitters, Faulty Remote control door lock receiver, Remote control door lock receiver harness is open or shorted.
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.
AI answers can be wrong. Verify repairs with testing. Open full chat
Code Popularity 583
How popular is this code, among other codes? Low
Table of contents Created and updated by William Orellana on Feb 11, 2020
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Code B2805 GMC Description

When a receiver is replaced, all transmitters must be programmed to a new electronic door lock receiver. DTC will remain current until at least one transmitter is programmed. Up to 3 identification codes can be stored by the receiver.
The Diagnostic Trouble Code (DTC) B2805 will set and store in receiver memory when the electronic door lock receiver indicates no transmitter Vehicle Access Code (VAC) has been programmed. No driver warning message will be displayed for this DTC.
The DTC B2805 will automatically clear when the electronic door lock receiver has indicated a valid VAC was programmed properly.
OBDII Code B2805 GMC - No transmitters Programmed - AutoCodes.com
B2805 GMC Code - No transmitters Programmed

What are the Possible Causes of the DTC B2805 GMC?

  • Program transmitters
  • Faulty Remote control door lock receiver
  • Remote control door lock receiver harness is open or shorted
  • Remote control door lock receiver circuit poor electrical connection

How to Fix the DTC B2805 GMC?

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 B2805 GMC 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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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 B2805 GMC Code

1. What are the common symptoms of OBDII code B2805 GMC (No transmitters Programmed)?

- The common symptoms include issues with remote keyless entry functionality, difficulty starting the vehicle, and the inability to lock or unlock the doors remotely.

2. What can cause the OBDII code B2805 GMC to trigger?

- This code is typically triggered when the Body Control Module (BCM) detects that no transmitters have been programmed or that the transmitters are not communicating properly with the vehicle.

3. How can I diagnose the OBDII code B2805 GMC issue?

- To diagnose this issue, you can use a diagnostic scanner to retrieve the specific trouble code, inspect the remote key fob for any visible damage or malfunction, and check the BCM for any related faults.

4. Is it safe to continue driving with the OBDII code B2805 GMC active?

- While the vehicle may still be operable with this code, it is recommended to address the issue promptly to avoid potential inconvenience or security concerns associated with the remote keyless entry system.

5. Can I reset the OBDII code B2805 GMC myself?

- In some cases, simply reprogramming the remote key fob or performing a BCM reset may resolve the issue and clear the code. However, if the problem persists, professional diagnosis and repair may be necessary.

6. Are there any DIY repair tips for resolving the OBDII code B2805 GMC?

- DIY repair tips may include checking and replacing the remote key fob battery, reprogramming the key fob according to the manufacturer's instructions, or inspecting the BCM connections for any loose or damaged components.

7. How much does it typically cost to repair the OBDII code B2805 GMC issue?

- Repair costs for this issue can vary depending on the underlying cause and the extent of the repair needed. Simple fixes such as reprogramming the key fob may be relatively inexpensive, while BCM replacement or reprogramming may be more costly.

8. Can a malfunctioning remote key fob cause the OBDII code B2805 GMC to appear?

- Yes, a malfunctioning or improperly programmed remote key fob can trigger this code as the vehicle's BCM relies on communication with the transmitters for proper operation of the remote keyless entry system.

9. Will the OBDII code B2805 GMC affect the vehicle's performance?

- This code is primarily related to the remote keyless entry system and is unlikely to directly impact the vehicle's performance. However, addressing the issue promptly is still recommended for convenience and security reasons.

10. How long does it take to repair the OBDII code B2805 GMC issue?

- The repair time can vary depending on the specific cause of the issue. Simple fixes such as reprogramming the key fob may only take a few minutes, while more complex repairs involving the BCM or other components may require additional time for diagnosis and replacement.

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