P121B · 厂商技术资料

DODGE · 2026-10-03

Flash: Powertrain Control Module (PCM) Updates PCR9A Customers must experience a Malfunction Indicator Lamp (MIL) illumination and the vehicle must SYMPTOM: exhibit/set one or more of the following Diagnostic Trouble Codes (DTCs): ● **P032F-00 - Combustion Engine Producing Insufficient Torque. ● P2D28-00 - Cold Start Propulsion Torque Performance. ● U0075-00 - Control Module Communication Bus "C" Off. ● P0610-00 - Control Module Vehicle Options Error. ● P0630-00 - VIN Not Programmed or Incompatible - ECM/PCM. ● P0607-00 - Control Module Performance. ● P0513-00 - Incorrect Immobilizer Key. ● C0501-00 - Left Front Wheel Speed Sensor "A" Range/Performance. ● C0507-00 - Right Front Wheel Speed Sensor "A" Range/Performance. ● C050D-00 - Left Rear Wheel Speed Sensor "A" Range/Performance. ●…

DODGE · 2026-05-21

Flash: Powertrain Control Module (PCM) Updates Customers must experience a Malfunction Indicator Lamp (MIL) illumination and the vehicle must exhibit/set one or more of the following Diagnostic Trouble Codes (DTCs): ● P2096-00 - Downstream Fuel Trim System 1 Lean. ● P2097-00 - Downstream Fuel Trim System 1 Rich. ● P2098-00 - Downstream Fuel Trim System 2 Lean. ● P2099-00 - Downstream Fuel Trim System 2 Rich. ● P068A-00 - ECM Power De-Energized Performance-Too Early. NOTE: The above DTCs are being falsely set due to lack of robustness to the diagnostic monitor. ● P121B-00 - Active Exhaust Valve 2 Performance. ● P1217-00 - Active Exhaust Valve 1 Performance. Customers may also comment on the following: ● Vehicle exhibits a no crank / no start condition. ● Exhaust pitch does not track with…

DODGE · 2026-05-01

Flash: Powertrain Control Module (PCM) Updates Customers must experience a Malfunction Indicator Lamp (MIL) illumination and the vehicle must exhibit/set one or more of the following Diagnostic Trouble Codes (DTCs): ● P2096-00 - Downstream Fuel Trim System 1 Lean. ● P2097-00 - Downstream Fuel Trim System 1 Rich. ● P2098-00 - Downstream Fuel Trim System 2 Lean. ● P2099-00 - Downstream Fuel Trim System 2 Rich. ● P068A-00 - ECM Power De-Energized Performance-Too Early. NOTE: The above DTCs are being falsely set due to lack of robustness to the diagnostic monitor. ● P121B-00 - Active Exhaust Valve 2 Performance. ● P1217-00 - Active Exhaust Valve 1 Performance. Customers may also comment on the following: ● Exhaust pitch does not track with acceleration.

DODGE · 2026-04-01

Flash: Powertrain Control Module (PCM) Updates Customers must experience a Malfunction Indicator Lamp (MIL) illumination and the vehicle must SYMPTOM: exhibit/set one or more of the following Diagnostic Trouble Codes (DTCs): ● P2096-00 - Downstream Fuel Trim System 1 Lean. ● P2097-00 - Downstream Fuel Trim System 1 Rich. ● P2098-00 - Downstream Fuel Trim System 2 Lean. ● P2099-00 - Downstream Fuel Trim System 2 Rich. ● P068A-00 - ECM Power De-Energized Performance-Too Early. NOTE: The above DTCs are being falsely set due to lack of robustness to the diagnostic monitor. ● P121B-00 - Active Exhaust Valve 2 Performance. ● P1217-00 - Active Exhaust Valve 1 Performance. Customers may also comment on the following: ● Exhaust pitch does not track with acceleration. statement and updated and…

DODGE · 2026-03-26

Flash: Powertrain Control Module (PCM) Updates **Customers must experience a Malfunction Indicator Lamp (MIL) illumination and the vehicle must SYMPTOM: exhibit/set one or more of the following Diagnostic Trouble Codes (DTCs): ● P2096-00 - Downstream Fuel Trim System 1 Lean. ● P2097-00 - Downstream Fuel Trim System 1 Rich. ● P2098-00 - Downstream Fuel Trim System 2 Lean. ● P2099-00 - Downstream Fuel Trim System 2 Rich. ● P068A-00 - ECM Power De-Energized Performance-Too Early. NOTE: The above DTCs are being falsely set due to lack of robustness to the diagnostic monitor.** ● P121B-00 - Active Exhaust Valve 2 Performance. ● P1217-00 - Active Exhaust Valve 1 Performance. Customers may also comment on the following: ● Exhaust pitch does not track with acceleration. This bulletin involves…

DODGE · 2026-02-17

Flash: Powertrain Control Module (PCM) Updates Customers may experience a Malfunction Indicator Lamp (MIL) illumination and the vehicle may SYMPTOM: exhibit/set one or more of the following Diagnostic Trouble Codes (DTCs): ● P121B-00 - Active Exhaust Valve 2 Performance. ● P1217-00 - Active Exhaust Valve 1 Performance. Customers may comment on the following: ● Exhaust pitch does not track with throttle input. This bulletin involves inspecting and possibly reprogramming the PCM with the latest available software.

MASERATI · 2023-06-13

Rapid Update 639 - for the Engine Control Module software to enhace the detection strategy of the exhaust valve's angular position and prevents the improper triggering of DTCs P1217/P121B.

DODGE · 2017-06-24

Flash: Powertrain Diagnostic and System Enhancements This bulletin involves reprogramming the Powertrain Control Module (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) stored in the PCM memory:P0456 - EVAP System Small Leak. U1424 - Implausible Engine Torque Signal Received. P0335 - Crankshaft Position Sensor Circuit. P0339 - Crankshaft Position Sensor Intermittent. P2299 - Brake Pedal Position/Accelerator Pedal Position Incompatible. P2227 - Barometric Pressure Circuit Performance. P1611 - Supercharger Bypass Valve Position Sensor 1 Circuit High. P0513 - Invalid Skim Key. P0300 - Multiple Cylinder Misfire…

DODGE · 2016-04-21

Flash: 6.2L Powertrain Diagnostic And System Enhancements This bulletin involves selectively erasing and reprogramming the Powertrain Control Module (PCM) and Transmission Control Module (TCM) with new software. A small number of 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) stored in the PCM memory: **P0456 - EVAP System Small Leak. P1611 - Supercharger Bypass Valve Position Sensor 1 Circuit High. P0513 - Invalid Skim Key.** P0300 - Multiple Cylinder Misfire (manual transmission applications only). P1613 - Turbocharger/Supercharger Boost Pressure Sensor/Mass Air Flow Sensor Correlation. P2227 - Barometric Pressure Circuit Performance. P1217 - Active…

DODGE · 2016-04-21

OVERVIEW: This bulletin involves selectively erasing and reprogramming the Powertrain Control Module (PCM) and Transmission Control Module (TCM) with new software. SYMPTOM/CONDITION: A small number of 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) stored in the PCM memory: · **P0456 - EVAP System Small Leak. · P1611 - Supercharger Bypass Valve Position Sensor 1 Circuit High. · P0513 - Invalid Skim Key.** · P0300 - Multiple Cylinder Misfire (manual transmission applications only). · P1613 - Turbocharger/Supercharger Boost Pressure Sensor/Mass Air Flow Sensor Correlation. · P2227 - Barometric Pressure Circuit Performance. · P1217 - Active Exhaust Valve…

CHRYSLER, DODGE · 2016-04-16

Flash: 6.4L Diagnostic And System Improvements This bulletin involves reprogramming of the Powertrain Control Module (PCM) with the latest available software. A small number of customers may experience one or more of the following symptoms and/or a Malfunction Indicator Lamp (MIL) illumination. Upon further investigation the technician may find one or more of the following Diagnostic Trouble Codes (DTCs): · P1217 - Active Exhaust Valve 1 Performance. · P121B - Active Exhaust Valve 2 Performance. In addition, customers may also comment on the following: · Unable to accurately increase or decrease the cruise control set speed using the resume or set buttons while the instrument cluster is set on metric units. Instead of changing vehicle speed by 1 KPH when pressing the buttons, the vehicle…

CHRYSLER, DODGE · 2016-04-16

This bulletin involves reprogramming of the Powertrain Control Module (PCM) with the latest available software. SYMPTOM/CONDITION: A small number of customers may experience one or more of the following symptoms and/or a Malfunction Indicator Lamp (MIL) illumination. Upon further investigation the technician may find one or more of the following Diagnostic Trouble Codes (DTCs): • P1217 - Active Exhaust Valve 1 Performance. • P121B - Active Exhaust Valve 2 Performance. In addition, customers may also comment on the following: • Unable to accurately increase or decrease the cruise control set speed using the resume or set buttons while the instrument cluster is set on metric units. Instead of changing vehicle speed by 1 KPH when pressing the buttons, the vehicle speed will increase…

CHRYSLER, DODGE · 2015-06-23

Flash: 6.2L / 6.4L Diagnostic And System Improvements This bulletin involves reprogramming of the Powertrain Control Module (PCM) with the latest software. A small number of customers may experience one or more of the following symptoms and/or a Malfunction Indicator Lamp (MIL) illumination. Upon further investigation the technician may find one or more of the following Diagnostic Trouble Codes (DTCs). Symptoms: ? Unable to accurately increase or decrease the cruise control set speed using the resume or set buttons while the instrument cluster is set on metric units. Instead of changing vehicle speed by 1 KPH when pressing the buttons, the vehicle speed will increase approximately 1.6 KPH. ? Slight spark knock condition during aggressive high speed driving which may prevent the vehicle…