C121C · Communications du constructeur

JEEP · 2022-03-31

ESC (Electronic Stability Control) Lamp On, DTC C121C-00-TORQUE REQUEST SIGNAL DENIED

MITSUBISHI · 2018-06-07

This is a Technical Service Bulletin sent to dealers. It instructs dealers to reprogram the engine ECU with updated software to correct the issue, on certain vehicles, of MIL illumination with DTC P061A. During turbocharged driving, DTC P061A (Torque Monitoring) may set when the current monitor does not recognize turbocharged operation. When DTC P061A is detected, the vehicle goes into fail-safe mode and vehicle speed is restricted to a maximum of 25 mph (40 km/h). Depending on vehicle and/or driving conditions, DTC P1574, C1707, C121C, C1777, or C2339 may also be detected. The new ECU software optimizes the Torque Monitoring to be able to recognize turbocharged operation.

CHRYSLER · 2017-08-09

Flash: Powertrain Diagnostic and System Enhancements This bulletin involves reprogramming the Powertrain Control Module (PCM) with thelatest available software. Customers may experience a Malfunction Indicator Lamp (MIL) illumination. Upon further investigation, a technician may find the following DiagnosticTrouble Codes (DTCs) have been set:U1400-00 - Implausible TPS Signal Received P1D73 - AGS Performance -(Active Grill Shutter). P0171 - Fuel System 1/1 Lean. P0174 - Fuel System 2/1 Lean. The following Diagnostic Trouble Codes (DTCs) have been changed from a one trip fault to atwo trip fault:P0335 - Crankshaft Position Sensor Circuit. P0339 - Crankshaft Position Sensor Intermittent. P0340 - Camshaft Position Sensor Circuit - Bank 1 Sensor 1. P0344 - Camshaft Position Sensor Intermittent…

CHRYSLER · 2016-06-17

Flash: 3.6L 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, a technician may find the following Diagnostic Trouble Codes (DTCs) have been set: · **P1D73 - AGS Performance - (Active Grill Shutter). · P0171 - Fuel System 1/1 Lean. · P0174 - Fuel System 2/1 Lean.** The technician may also find the following DTC stored in the Anti-lock Brake System (ABS) Module memory: NOTE: The Diagnostic Trouble Code (DTC) is caused by a calibration in the PCM that is in conflict with the ABS Module programming. The new software flash will correct this issue. · C121C-00 - Torque Request Signal Denied.…

CHRYSLER · 2016-06-17

"FLASH: 3.6L 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, A TECHNICIAN MAY FIND THE FOLLOWING DIAGNOSTIC TROUBLE CODES (DTCS) HAVE BEEN SET: · **P1D73 - AGS PERFORMANCE - (ACTIVE GRILL SHUTTER). · P0171 - FUEL SYSTEM 1/1 LEAN. · P0174 - FUEL SYSTEM 2/1 LEAN.** THE TECHNICIAN MAY ALSO FIND THE FOLLOWING DTC STORED IN THE ANTI-LOCK BRAKE SYSTEM (ABS) MODULE MEMORY: NOTE: THE DIAGNOSTIC TROUBLE CODE (DTC) IS CAUSED BY A CALIBRATION IN THE PCM THAT IS IN CONFLICT WITH THE ABS MODULE PROGRAMMING. THE NEW SOFTWARE FLASH WILL CORRECT THIS ISSUE. · C121C-00 - TORQUE REQUEST SIGNAL DENIED.…

CHRYSLER · 2016-05-11

Flash: 3.6L Powertrain Diagnostic And System Enhancements This bulletin involves reprogramming the Powertrain Control Module (PCM) with the latest available software. A small number of customers may experience a Malfunction Indicator Lamp (MIL) illumination and/or one of the following conditions. Upon further investigation, a technician may find the following Diagnostic Trouble Code (DTC) stored in the Anti-lock Brake System (ABS) Module memory: NOTE: The Diagnostic Trouble Code (DTC) is caused by a calibration in the PCM that is in conflict with the ABS Module programming. The new software flash will correct this issue. · C121C-00 - Torque Request Signal Denied.

CHRYSLER · 2016-05-11

Flash: 3.6L Powertrain Diagnostic And System Enhancements This bulletin involves reprogramming the Powertrain Control Module (PCM) with the latest available software. A small number of customers may experience a Malfunction Indicator Lamp (MIL) illumination and/or one of the following conditions. Upon further investigation, a technician may find the following Diagnostic Trouble Code (DTC) stored in the Anti-lock Brake System (ABS) Module memory: NOTE: The Diagnostic Trouble Code (DTC) is caused by a calibration in the PCM that is in conflict with the ABS Module programming. The new software flash will correct this issue. · C121C-00 - Torque Request Signal Denied.

CHRYSLER, DODGE · 2006-12-19

MAP SENSOR CAUSING DTC'S P0652, P0340, P2127 AND C121C. *TT