What Does B2364 Mean?
This code indicates the Body Control Module (BCM) has detected an open circuit in the fuel filler door release mechanism. The BCM monitors the electrical circuit that controls the fuel door actuator/solenoid and has identified a break in continuity, meaning current cannot flow through the circuit. This prevents the fuel door from being electrically released when commanded by the unlock button or vehicle unlock sequence.
Common Causes
45%
Broken or corroded wiring between BCM and fuel door actuator, often due to trunk/quarter panel flex or moisture intrusion
30%
Failed fuel door release actuator/solenoid with internal open circuit or seized mechanism
15%
Loose or disconnected electrical connector at fuel door actuator or BCM
10%
Faulty BCM with internal circuit board failure on fuel door control output
Diagnostic Steps
1
Step 1: Perform visual inspection of fuel door actuator connector in trunk/quarter panel area, checking for disconnected terminals, corrosion, or physical damage. Check connector security and pin condition.
2
Step 2: With ignition off, disconnect fuel door actuator connector and measure resistance across actuator terminals using a digital multimeter. Typical resistance should be 8-15 ohms; infinite resistance confirms open circuit in actuator.
3
Step 3: If actuator tests good, inspect wiring harness from actuator to BCM for chafing, cuts, or breaks. Use multimeter continuity test on each wire with actuator disconnected and BCM connector accessible (may require removing panels).
4
Step 4: With wiring confirmed intact, use multimeter to verify BCM is providing ground signal (0-2 ohms to ground) and switched power (10-14V) when fuel door release is commanded via scan tool active test or unlock button.
5
Step 5: Replace faulty component (actuator, repair wiring, or replace BCM if internal fault confirmed), then clear codes and verify fuel door operates correctly through multiple lock/unlock cycles.
6
Step 6: Road test vehicle and confirm code does not return, verify fuel door releases properly from both driver controls and key fob unlock sequences.
Estimated Repair Cost
$75 - $450
Parts + labor, varies by vehicle and location
This code indicates the Body Control Module (BCM) has detected an open circuit in the fuel filler door release mechanism. The BCM monitors the electrical circuit that controls the fuel door actuator/solenoid and has identified a break in continuity, meaning current cannot flow through the circuit. T...
The most common cause of B2364 (Fuel Filler Door Circuit Open) is: Broken or corroded wiring between BCM and fuel door actuator, often due to trunk/quarter panel flex or moisture intrusion
Typical repair costs for B2364 range from $75 to $450, depending on the vehicle, location, and whether you do it yourself or go to a shop.
Safe to continue driving as this does not affect vehicle operation or safety systems. The fuel door can typically be opened manually from inside the trunk or via emergency release cable, though refueling convenience is reduced until repaired.
Start by connecting an OBD2 scanner to read the code and any freeze frame data. Then follow the diagnostic steps specific to B2364 to identify the root cause.
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Quick Info
Category
Body
System
Body Control System
Difficulty
Type
Generic (SAE)
Recommended Tools
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