Error code
OBD2 P2621
OBD2P2621
Diagnostic Trouble Code· Standard OBD-II fault code read from the vehicle's onboard diagnostics.
What it means
Throttle Position Output Circuit Low.
Severity
moderateCan drive but may experience performance issues and should be addressed soon.
Summary
P2621 indicates that the throttle position sensor's output signal is too low, which could be due to wiring issues or problems with the Engine Control Module (ECM).
Common Causes
- Wiring short to ground
- Fault in ECM
Fixes
FAQ
Not affiliated with OBD2. Answer summarized from the manufacturer's manual linked above; consult that source for the authoritative procedure.
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