{"vehicle":{"id":"2021_chrysler_pacifica","year":2021,"make":"Chrysler","model":"Pacifica"},"code":"P0031","generic":true,"description":null,"bulletins":{"as_of":"2026-10-19","count":5,"bulletins":[{"nhtsa_id":10230133,"type":"service_bulletin","type_name":"Service bulletin","date_added":"2023-01-17","date":"2021-05-22","document_id":"1805121","mfr_campaign":null,"component":"POWER TRAIN; EXTERIOR LIGHTING; BACK OVER PREVENTION; ELECTRICAL SYSTEM","summary":"Flash: Powertrain Control Module (PCM) Updates This bulletin involves reprogramming the PCM with the latest available software. Customers may experience a Malfunction Indicator Lamp (MIL) illumination. Upon further investigation the technician may find one or more of the following Diagnostic Trouble Codes (DTCs) have been set: P1AC6-00 - MCPA Crankshaft Position Signal Sensor Performance. P0335 - Crankshaft Position Sensor Circuit. P0339 - Crankshaft Position Sensor Intermittent. P0031 - O2 Sensor 1/1 Heater Circuit Low. P0032 - O2 Sensor 1/1 Heater Circuit High. P0037 - O2 Sensor 1/2 Heater Circuit Low. P0038 - O2-Sensor 1/2 Heater Circuit High. P0051 - O2-Sensor 2/1 Heater Circuit Low. P0052 - O2-Sensor 2/1 Heater Circuit High. P0057 - O2 Sensor 2/2 Heater Circuit Low. P0058 - O2-Sensor 2/2 Heater Circuit High. The following modules need to be flashed for this update to be effective, the following modules are all to be updated along with this PCM update:Hybrid Control Processor (HCP) and Auxiliary Hybrid Control Processor (AHCP) or also known as Power Inverter Module (PIM).","document":{"url":"https://static.nhtsa.gov/odi/tsbs/2021/MC-10230133-0001.pdf","alternate_url":"https://static.nhtsa.gov/odi/tsbs/2021/MC-10230133-9999.pdf","confirmed":false},"url":"https://open.wenmarpro.com/bulletins/10230133"},{"nhtsa_id":10223499,"type":"service_bulletin","type_name":"Service bulletin","date_added":"2022-10-17","date":"2021-05-22","document_id":"1805121","mfr_campaign":null,"component":"ELECTRICAL SYSTEM:SOFTWARE; POWER TRAIN; ELECTRICAL SYSTEM","summary":"Flash: Powertrain Control Module (PCM) Updates This bulletin involves reprogramming the PCM with the latest available software. Customers may experience a Malfunction Indicator Lamp (MIL) illumination. Upon further investigation the technician may find one or more of the following Diagnostic Trouble Codes (DTCs) have been set: P1AC6-00 - MCPA Crankshaft Position Signal Sensor Performance. P0335 - Crankshaft Position Sensor Circuit. P0339 - Crankshaft Position Sensor Intermittent. P0031 - O2 Sensor 1/1 Heater Circuit Low. P0032 - O2 Sensor 1/1 Heater Circuit High. P0037 - O2 Sensor 1/2 Heater Circuit Low. P0038 - O2-Sensor 1/2 Heater Circuit High. P0051 - O2-Sensor 2/1 Heater Circuit Low. P0052 - O2-Sensor 2/1 Heater Circuit High. P0057 - O2 Sensor 2/2 Heater Circuit Low. P0058 - O2-Sensor 2/2 Heater Circuit High. The following modules need to be flashed for this update to be effective, the following modules are all to be updated along with this PCM update:Hybrid Control Processor (HCP) and Auxiliary Hybrid Control Processor (AHCP) or also known as Power Inverter Module (PIM).","document":{"url":"https://static.nhtsa.gov/odi/tsbs/2021/MC-10223499-0001.pdf","alternate_url":"https://static.nhtsa.gov/odi/tsbs/2021/MC-10223499-9999.pdf","confirmed":false},"url":"https://open.wenmarpro.com/bulletins/10223499"},{"nhtsa_id":10223361,"type":"service_bulletin","type_name":"Service bulletin","date_added":"2022-10-17","date":"2021-05-22","document_id":"1805121","mfr_campaign":null,"component":"ELECTRICAL SYSTEM; POWER TRAIN","summary":"Flash: Powertrain Control Module (PCM) Updates This bulletin involves reprogramming the PCM with the latest available software. Customers may experience a Malfunction Indicator Lamp (MIL) illumination. Upon further investigation the technician may find one or more of the following Diagnostic Trouble Codes (DTCs) have been set: P1AC6-00 - MCPA Crankshaft Position Signal Sensor Performance. P0335 - Crankshaft Position Sensor Circuit. P0339 - Crankshaft Position Sensor Intermittent. P0031 - O2 Sensor 1/1 Heater Circuit Low. P0032 - O2 Sensor 1/1 Heater Circuit High. P0037 - O2 Sensor 1/2 Heater Circuit Low. P0038 - O2-Sensor 1/2 Heater Circuit High. P0051 - O2-Sensor 2/1 Heater Circuit Low. P0052 - O2-Sensor 2/1 Heater Circuit High. P0057 - O2 Sensor 2/2 Heater Circuit Low. P0058 - O2-Sensor 2/2 Heater Circuit High. The following modules need to be flashed for this update to be effective, the following modules are all to be updated along with this PCM update:Hybrid Control Processor (HCP) and Auxiliary Hybrid Control Processor (AHCP) or also known as Power Inverter Module (PIM).","document":{"url":"https://static.nhtsa.gov/odi/tsbs/2021/MC-10223361-0001.pdf","alternate_url":"https://static.nhtsa.gov/odi/tsbs/2021/MC-10223361-9999.pdf","confirmed":false},"url":"https://open.wenmarpro.com/bulletins/10223361"},{"nhtsa_id":10221489,"type":"service_bulletin","type_name":"Service bulletin","date_added":"2022-09-26","date":"2022-06-17","document_id":"1805022REVA","mfr_campaign":null,"component":"ELECTRICAL SYSTEM; POWER TRAIN","summary":"Flash: Powertrain Control Module (PCM) Updates This bulletin involves updating the PCM with the latest available software. Customers may experience a Malfunction Indicator Lamp (MIL) illumination. Upon further investigation, the technician may notice one or more of the following DTCs have been set: P1AC6-00 - MCPA Crankshaft Position Signal Sensor Performance. P0335 - Crankshaft Position Sensor Circuit. P0339 - Crankshaft Position Sensor Intermittent. P0031 - O2 Sensor 1/1 Heater Circuit Low. P0032 - O2 Sensor 1/1 Heater Circuit High. P0037 - O2 Sensor 1/2 Heater Circuit Low. P0038 - O2 Sensor 1/2 Heater Circuit High. P0051 - O2 Sensor 2/1 Heater Circuit Low. P0052 - O2 Sensor 2/1 Heater Circuit High. P0057 - O2 Sensor 2/2 Heater Circuit Low. P0058 - O2 Sensor 2/2 Heater Circuit High. P0340 - Camshaft Position Sensor Circuit - Bank 1 Sensor A. P0345 - Camshaft Position Sensor Circuit - Bank 2 Sensor A. P0365 - Camshaft Position Sensor Circuit - Bank 1 Sensor B. P0390 - Camshaft Position Sensor Circuit - Bank 2 Sensor B. The following modules need to be flashed for this update to be effective, the following modules are all to be updated along with this PCM update:Hybrid Control Processor (HCP) and Auxiliary Hybrid Control Processor (AHCP) or also known as Power Inverter Module (PIM).","document":{"url":"https://static.nhtsa.gov/odi/tsbs/2022/MC-10221489-0001.pdf","alternate_url":"https://static.nhtsa.gov/odi/tsbs/2022/MC-10221489-9999.pdf","confirmed":false},"url":"https://open.wenmarpro.com/bulletins/10221489"},{"nhtsa_id":10198455,"type":"service_bulletin","type_name":"Service bulletin","date_added":"2021-06-28","date":"2021-05-22","document_id":"18-051-21","mfr_campaign":null,"component":"ELECTRICAL SYSTEM; POWER TRAIN","summary":"Flash: Powertrain Control Module (PCM) Updates This bulletin involves reprogramming the PCM with the latest available software. Customers may experience a Malfunction Indicator Lamp (MIL) illumination. Upon further investigation the technician may find one or more of the following Diagnostic Trouble Codes (DTCs) have been set: P1AC6-00 - MCPA Crankshaft Position Signal Sensor Performance. P0335 - Crankshaft Position Sensor Circuit. P0339 - Crankshaft Position Sensor Intermittent. P0031 - O2 Sensor 1/1 Heater Circuit Low. P0032 - O2 Sensor 1/1 Heater Circuit High. P0037 - O2 Sensor 1/2 Heater Circuit Low. P0038 - O2-Sensor 1/2 Heater Circuit High. P0051 - O2-Sensor 2/1 Heater Circuit Low. P0052 - O2-Sensor 2/1 Heater Circuit High. P0057 - O2 Sensor 2/2 Heater Circuit Low. P0058 - O2-Sensor 2/2 Heater Circuit High. The following modules need to be flashed for this update to be effective, the following modules are all to be updated along with this PCM update:Hybrid Control Processor (HCP) and Auxiliary Hybrid Control Processor (AHCP) or also known as Power Inverter Module (PIM).","document":{"url":"https://static.nhtsa.gov/odi/tsbs/2021/MC-10198455-0001.pdf","alternate_url":"https://static.nhtsa.gov/odi/tsbs/2021/MC-10198455-9999.pdf","confirmed":false},"url":"https://open.wenmarpro.com/bulletins/10198455"}],"url":"https://open.wenmarpro.com/makes/chrysler/pacifica/2021/bulletins?code=P0031"},"related":{"components":[],"bulletins":[],"recalls":{"may_apply":true,"recalls":[],"lookup":{"nhtsa":"https://www.nhtsa.gov/recalls","tc":"https://wwwapps.tc.gc.ca/Saf-Sec-Sur/7/VRDB-BDRV/search-recherche/menu.aspx?lang=eng","maker":null}}},"url":"https://open.wenmarpro.com/makes/chrysler/pacifica/2021/codes/P0031","note":"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.","attribution":["Contains information licensed under the Open Government Licence – Canada."]}