Introduction
The B2767 trouble code indicates a fault within the vehicle's memory set switch circuit, specifically a "low" voltage condition. This typically relates to the system responsible for storing and recalling driver preferences, such as seat positions, mirror adjustments, and steering column settings. When the diagnostic trouble code (DTC) B2767 is triggered, it signifies that the vehicle's computer has detected an abnormally low voltage signal from the memory set switch circuit, suggesting a potential issue with the switch itself, the wiring, or the related control module. Addressing this code promptly is essential for restoring full functionality to the memory system and ensuring driver convenience.
Comprehensive Table: B2767 - Memory Set Switch Failed Low
| Topic | Description | Possible Causes |
|---|---|---|
| Definition | Memory Set Switch Circuit Low. Indicates the vehicle's computer has detected a low voltage signal from the memory set switch circuit, preventing proper functioning of the memory feature. | 1. Faulty Memory Set Switch: The switch itself might be defective, preventing it from sending the correct signal. 2. Wiring Issues: Damaged, shorted, or corroded wiring in the memory set switch circuit. 3. Connector Problems: Loose or corroded connectors in the circuit. 4. Faulty Driver Seat Module (DSM) or other relevant control module: The module responsible for processing the switch signal may be malfunctioning. 5. Open Circuit: A break in the wiring preventing the signal from reaching the control module. 6. Ground Issues: A poor or missing ground connection affecting the circuit. 7. Voltage Supply Problem: Insufficient voltage being supplied to the memory set switch circuit. |
| Symptoms | 1. Memory seat, mirror, and steering column settings cannot be stored or recalled. 2. The memory set switch may be unresponsive. 3. The memory system may intermittently work or fail completely. 4. The "memory" function light on the dashboard might not illuminate. 5. Other electrical issues may be present, depending on the vehicle's design and the extent of the fault. | N/A |
| Diagnostic Steps | 1. Visual Inspection: Check the memory set switch, wiring, and connectors for any visible damage or corrosion. 2. Voltage Test: Use a multimeter to test the voltage at the memory set switch and related wiring. 3. Continuity Test: Check the continuity of the wiring to ensure there are no open circuits. 4. Ground Check: Verify the ground connection for the memory set switch circuit is secure and properly grounded. 5. Scan Tool Diagnosis: Use a scan tool to read DTCs and monitor the memory set switch signal. 6. Module Testing: If necessary, test the driver seat module (DSM) or other relevant control module to ensure it is functioning properly. 7. Component Replacement: Replace faulty components, such as the memory set switch or wiring, as needed. | N/A |
| Affected Systems | 1. Memory Seat System. 2. Memory Mirror System. 3. Memory Steering Column System (if equipped). 4. Related Driver Preference Systems. | N/A |
| Severity | Moderate. While not directly affecting the vehicle's drivability, the inability to store and recall driver preferences can be inconvenient and frustrating. | N/A |
| Common Misdiagnoses | 1. Assuming the problem is always the memory set switch without thoroughly checking the wiring and connectors. 2. Replacing the driver seat module (DSM) or other control module without proper testing. 3. Overlooking ground issues. 4. Ignoring intermittent faults, which can be difficult to diagnose. | N/A |
| Relevant Tools | 1. Scan Tool. 2. Multimeter. 3. Wiring Diagram. 4. Connector Test Kit. 5. Basic Hand Tools (screwdrivers, pliers, etc.). | N/A |
| Related DTCs | B2765 - Memory Set Switch Circuit High. Other DTCs related to the driver seat module (DSM) or other control modules involved in the memory system. | N/A |
| Repair Costs | Varies widely depending on the cause. A faulty switch might cost $50-$200 to replace. Wiring repairs could range from $50-$300. Replacing a control module could be significantly more expensive, potentially reaching $300-$1000 or more, including labor. Diagnostic fees also apply. | N/A |
| Troubleshooting Tips | 1. Always start with a visual inspection of the wiring and connectors. 2. Use a wiring diagram to understand the circuit layout. 3. Test the memory set switch with a multimeter to verify its functionality. 4. Check the ground connection for the circuit. 5. If the problem is intermittent, try to replicate the conditions under which it occurs. | N/A |
Detailed Explanations
Definition: The B2767 code means the car's computer detected a voltage signal from the memory set switch circuit is too low. This signal is responsible for storing and recalling seat, mirror, and steering column positions.
Symptoms: The most obvious symptom is the inability to store or recall your preferred settings for the seat, mirrors, and steering column. The switch itself might not respond when pressed. The memory function light on the dashboard might not light up, and the system might work intermittently or fail entirely.
Diagnostic Steps: Start with a visual check of the switch, wiring, and connectors for damage. Then, use a multimeter to test the voltage at the switch and the wiring for continuity. Check the ground connection. A scan tool can read DTCs and monitor the switch's signal. If needed, test the driver seat module (DSM) or the relevant control module. Finally, replace any faulty parts like the switch or wiring.
Affected Systems: The systems most directly affected are the memory seat system, the memory mirror system, and the memory steering column system (if your vehicle has it). This also impacts related driver preference systems, like automatic entry/exit seat positioning.
Severity: While the car is still drivable, the inability to store and recall settings is a significant inconvenience. Consider it a moderate severity issue that should be addressed.
Common Misdiagnoses: Don't automatically assume the switch is the problem. Thoroughly check the wiring and connectors first. Avoid replacing expensive parts like the driver seat module without proper testing. Make sure to check for ground issues. Be aware that intermittent faults can be tricky to diagnose.
Relevant Tools: You'll need a scan tool to read the code, a multimeter to test voltage and continuity, a wiring diagram to understand the circuit, a connector test kit, and basic hand tools.
Related DTCs: You might see B2765, which indicates a high voltage in the memory set switch circuit. Also, look for codes related to the driver seat module (DSM) or other modules involved in the memory system.
Repair Costs: The cost depends on the problem. A new switch could be $50-$200. Wiring repairs could cost $50-$300. A control module replacement could be $300-$1000 or more, including labor. Don't forget to factor in diagnostic fees.
Troubleshooting Tips: Always start with a visual inspection. Use a wiring diagram to understand the circuit. Test the switch with a multimeter. Check the ground connection. If the problem is intermittent, try to figure out what triggers it.
Frequently Asked Questions
What does the B2767 code mean? It means the vehicle's computer has detected a low voltage signal from the memory set switch circuit.
Can I still drive my car with this code? Yes, the code typically doesn't affect drivability, but the memory seat and mirror functions won't work correctly.
What are the most common causes of this code? The most common causes include a faulty memory set switch, damaged wiring, or a bad connection.
How can I fix the B2767 code myself? You can start by visually inspecting the wiring and connectors, then use a multimeter to test the switch and wiring. If you're comfortable with electrical work, you might be able to repair or replace the faulty component.
Do I need a special tool to diagnose this code? A scan tool is helpful for reading the code and monitoring the switch signal, and a multimeter is essential for testing voltage and continuity.
Conclusion
The B2767 code indicates a "Memory Set Switch Failed Low" condition, preventing the memory seat, mirror, and steering column functions from working correctly. Thorough diagnosis, including visual inspection and electrical testing, is crucial to identify the root cause and restore the system to proper operation.