P0326 on the 2017 Fiat 500
The bulletins listed name this code in NHTSA's summary, or are about the same components. A bulletin or a recall listed here may apply to the model year. None of it is a diagnosis.
Nobody has written a description of this code yet.
| 18-026-17 | 2022-08-08. Service bulletin. Flash: Diagnostic And System Improvements This bulletin involves reprogramming the Powertrain Control Module (PCM) with the latest software. Customers may experience a Malfunction Indicator Lamp (MIL) illumination. Upon further investigation the technician may find that the following DTCs have been set: P0141-00 - O2 Sensor 1/2 Heater Performance. P1523-00 - VVA Low Oil Pressure. 1524-00 - Oil Pressure Out Of Range - Camshaft Advance/Retard Disabled. P0000-00 - will be displayed but should really be displaying P0326-00 (Knock Sensor 1 Circuit Performance). |
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| 18-026-17 | 2018-06-11. Service bulletin. Flash: Diagnostic And System Improvements This bulletin involves reprogramming the Powertrain Control Module (PCM) with the latest software. Customers may experience a Malfunction Indicator Lamp (MIL) illumination. Upon further investigation the technician may find that the following DTCs have been set: P0141-00 - O2 Sensor 1/2 Heater Performance. P1523-00 - VVA Low Oil Pressure. 1524-00 - Oil Pressure Out Of Range - Camshaft Advance/Retard Disabled. P0000-00 - will be displayed but should really be displaying P0326-00 (Knock Sensor 1 Circuit Performance). |
| 18-116-16 | 2017-11-03. Service bulletin. Flash: Diagnostic And System Improvements This bulletin involves reprogramming the Powertrain Control Module (PCM) with the latest software. Customers may experience a Malfunction Indicator Lamp (MIL) illumination. Upon further investigation the technician may find that the following Diagnostic Trouble Code (DTC) has been set: P0000-00 - will be displayed but should really be displaying P0326-00 (Knock Sensor 1 Circuit Performance). |
| 18-083-17 | 2017-11-03. Service bulletin. Flash: Powertrain Diagnostic and System Improvements This bulletin involves reprogramming the Powertrain Control Module (PCM) with the latest software. Customers may experience a Malfunction Indicator Lamp (MIL) illumination. Upon further investigation the technician may find that the following Diagnostic Trouble Codes (DTCs) have been set:P1D7F-00 - ETC Self-Learning Failure. P0000-00 - Will be displayed but should really be displaying P0326-00 (Knock Sensor 1 Circuit Performance). |
| 18-026-17 REV. A | 2017-11-03. Service bulletin. Flash: Powertrain Diagnostic and System Enhancements This bulletin involves reprogramming the Powertrain Control Module (PCM) with the latest software. Customers may experience a Malfunction Indicator Lamp (MIL) illumination. Upon further investigation the technician may find that the following DTCs have been set:P1D7F-00 - ETC Self-Learning Failure. P0141-00 - O2 Sensor 1/2 Heater Performance. P1523-00 - VVA Low Oil Pressure. 1524-00 - Oil Pressure Out Of Range - Camshaft Advance/Retard Disabled. P0000-00 - will be displayed but should really be displaying P0326-00 (Knock Sensor 1 Circuit Performance). |
5 on file from NHTSA, as of 2026-10-19. See them in the bulletin list. A bulletin lists model years: read the document for which vehicles it concerns.