The control module detected improper operation of the Secondary Vacuum circuit. This is the manufacturer-specific definition used by Chevrolet.
TuningBot DTC Database · v4.37.15
P1105 Chevrolet - Secondary Vacuum Sensor Circuit
Manufacturer-specific interpretation for Chevrolet. All interpretations of P1105
What P1105 means
Related and nearby codes
How to read P1105
Powertrain: engine, transmission and driveline systems.
Manufacturer-defined range: the meaning can differ between brands.
Specific fault index within the subsystem.
Frequently asked questions about P1105
What does P1105 mean?
Secondary Vacuum Sensor Circuit. The control module detected improper operation of the Secondary Vacuum circuit. This is the manufacturer-specific definition used by Chevrolet.
Is P1105 generic or manufacturer-specific?
P1105 is a manufacturer-specific code. In this database it is documented for: Chevrolet. The same number can mean something different on other brands.
Can TuningBot remove P1105 at file level?
If the fault logic lives in the ECU calibration, yes: our DTC Removal file service disables the specific fault entry. Checksum correction is not included: it is a separate, optional service. Not sure whether your case qualifies? Request a free assessment and our engineers will check your ECU file.
Other file services
Understand the system behind this code: Diagnostic Strategy and DTC Logic
