B2735 GMC Code - PASS-Key Programming Mode Active
Quick Answer
The B2735 GMC code indicates that the vehicle's PASS-Key programming mode is active. Common causes include Faulty ignition key with a damaged resistor pellet, Malfunctioning Body Control Module (BCM), Wiring issues in the PASS-Key system. 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
- B2735 GMC indicates PASS-Key Programming Mode Active.
- Common causes
- Common causes include Faulty ignition key with a damaged resistor pellet, Malfunctioning Body Control Module (BCM), Wiring issues in the PASS-Key system.
- 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.
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Code B2735 GMC Description
The B2735 GMC code indicates that the vehicle's PASS-Key programming mode is active. PASS-Key is a type of vehicle security system that helps prevent unauthorized access to the vehicle. When this code appears, it means that there is an issue with the PASS-Key system that requires attention. The PASS-Key system uses a resistor pellet in the ignition key that communicates with the vehicle's Body Control Module (BCM) to allow the engine to start. If the system detects a problem, it will enter programming mode, preventing the vehicle from starting until the issue is resolved.
Common Causes of B2735 GMC
- Faulty ignition key with a damaged resistor pellet
- Malfunctioning Body Control Module (BCM)
- Wiring issues in the PASS-Key system
- Problem with the ignition switch
- Dead or weak battery affecting communication with the security system
Symptoms of B2735 GMC
- Engine cranks but does not start
- Security light flashing on the dashboard
- Inability to start the vehicle
- Loss of power to accessories such as radio and lights
- Security message displayed on the instrument cluster
How to Fix B2735 GMC
- Begin by checking the battery voltage to ensure it is sufficient for proper communication with the security system.
- Inspect the ignition key for any damage to the resistor pellet and replace if necessary.
- Use a diagnostic scan tool to retrieve the specific trouble codes and reset the PASS-Key system.
- Check the wiring in the PASS-Key system for any shorts or breaks and repair as needed.
- If the issue persists, consider replacing the Body Control Module (BCM) to resolve the problem.
Cost to Fix B2735 GMC
The cost of repairing the B2735 GMC code can vary depending on the specific cause of the issue. On average, the repair costs for this type of problem can range from $100 to $500, including parts and labor. However, it's important to note that the actual cost may be higher if the BCM needs to be replaced. Additionally, diagnostic time and labor rates at auto repair shops can vary, so it's recommended to check with local shops for a more accurate estimate.
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Frequently Asked Questions about B2735 GMC Code
1. What are the common symptoms of OBDII code B2735 GMC PASS-Key Programming Mode Active?
The common symptoms include the vehicle not starting, the security light staying on or flashing, and issues with the ignition system.
2. What does it mean when my GMC vehicle displays the OBDII code B2735 PASS-Key Programming Mode Active?
This code indicates that the vehicle's security system is in programming mode, which can prevent the vehicle from starting.
3. What are the possible causes of OBDII code B2735 GMC PASS-Key Programming Mode Active?
Possible causes include a malfunctioning ignition key, a faulty ignition lock cylinder, or issues with the vehicle's security system.
4. How can I repair OBDII code B2735 GMC PASS-Key Programming Mode Active?
To repair this code, you may need to reprogram the vehicle's key using a specific procedure outlined in the vehicle's manual or seek assistance from a professional mechanic.
5. Can I reset OBDII code B2735 GMC PASS-Key Programming Mode Active on my own?
Resetting this code may require specialized equipment or knowledge, so it is recommended to consult a professional mechanic for assistance.
6. Is it safe to drive my GMC vehicle with OBDII code B2735 PASS-Key Programming Mode Active?
It is not recommended to drive the vehicle with this code active as it may lead to starting issues or potential security system malfunctions.
7. How can I prevent OBDII code B2735 GMC PASS-Key Programming Mode Active from occurring?
To prevent this code, ensure your ignition key is in good condition, avoid forcing the key into the ignition, and regularly maintain your vehicle's security system.
8. Can a low battery trigger OBDII code B2735 GMC PASS-Key Programming Mode Active?
A low battery can sometimes trigger this code due to voltage fluctuations affecting the vehicle's security system. Ensure your vehicle's battery is in good condition.
9. How long does it take to resolve OBDII code B2735 GMC PASS-Key Programming Mode Active?
The time to resolve this code varies depending on the cause of the issue and the repair method used. It may take a professional mechanic a few hours to diagnose and fix the problem.
10. Is OBDII code B2735 GMC PASS-Key Programming Mode Active a common issue in GMC vehicles?
While not extremely common, issues related to PASS-Key programming mode can occur in some GMC vehicles, particularly in older models or those with high mileage.
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