Error code
OBD2 P0728
OBD2P0728
Diagnostic Trouble Code· Standard OBD-II fault code read from the vehicle's onboard diagnostics.
What it means
Engine Speed Input Circuit Intermittent.
Severity
moderateCan drive, but may experience issues like stalling or rough idling.
Summary
P0728 indicates an intermittent issue with the engine RPM input circuit, which is related to the crankshaft or camshaft position sensor signal.
Common Causes
- Poor wiring connection
- Faulty CKP/RPM sensor
- ECM/PCM failure
Fixes
FAQ
What does P0728 mean?
P0728 means there's an issue with the engine RPM input circuit, likely due to a problem with wiring or sensors.
Not affiliated with OBD2. Answer summarized from the manufacturer's manual linked above; consult that source for the authoritative procedure.
More OBD2 codes
- P0700Transmission Control System (MIL Request)
- P0701Transmission Control System Range/Performance
- P0702Transmission Control System Electrical
- P0703Brake Switch 'B' Circuit
- P0704Clutch Switch Input Circuit Malfunction
- P0705Transmission Range Sensor Circuit Malfunction (PRNDL Input)
- P0706Transmission Range Sensor Circuit Range/Performance
- P0707Transmission Range Sensor Circuit Low
- P0708Transmission Range Sensor Circuit High
- P0709Transmission Range Sensor Circuit Intermittent
- P0710Transmission Fluid Temperature Sensor 'A' Circuit
- P0711Transmission Fluid Temperature Sensor 'A' Circuit Range/Performance