Error code
OBD2 P2174
OBD2P2174
Diagnostic Trouble Code· Standard OBD-II fault code read from the vehicle's onboard diagnostics.
What it means
Throttle Actuator Control System - Sudden Low Airflow Detected.
Severity
moderateCan drive, but performance issues may occur.
Summary
P2174 indicates that there is sudden low airflow detected in the throttle actuator control system, typically related to issues around the intake system or throttle body.
Common Causes
- Faulty air flow sensor
- Throttle body malfunction
- Intake manifold vacuum leak
Fixes
FAQ
What does P2174 mean?
P2174 indicates sudden low airflow detected in the throttle actuator control system, often related to issues with the air flow sensor or throttle body.
How serious is P2174?
Moderately serious. The vehicle can still be driven but may experience performance issues such as poor acceleration or stalling.
Not affiliated with OBD2. Answer summarized from the manufacturer's manual linked above; consult that source for the authoritative procedure.
More OBD2 codes
- P2100Throttle Actuator Control Motor Circuit/Open
- P2101Throttle Actuator Control Motor Circuit Range/Performance
- P2102Throttle Actuator Control Motor Circuit Low
- P2103Throttle Actuator Control Motor Circuit High
- P2104Throttle Actuator Control System - Forced Idle
- P2105Throttle Actuator Control System - Forced Engine Shutdown
- P2106Throttle Actuator Control System - Forced Limited Power
- P2107Throttle Actuator Control Module Processor
- P2108Throttle Actuator Control Module Performance
- P2109Throttle/Pedal Position Sensor 'A' Minimum Stop Performance
- P2110Throttle Actuator Control System - Forced Limited RPM
- P2111Throttle Actuator Control System - Stuck Open