HomeC121C · Manufacturer communications

C121C · Manufacturer communications

Source wording can vary by vehicle and suffix. It is shown as written, not as a universal diagnosis.

C121C →

TSB-18-13-002

MITSUBISHI

Reported code forms C121C

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…

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1806917

CHRYSLER

Reported code forms C121C-00

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…

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CHRYSLER

Reported code forms C121C-00

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…

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CHRYSLER

Reported code forms C121C-00

"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…

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1805716

CHRYSLER

Reported code forms C121C-00

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…

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18-057-16

CHRYSLER

Reported code forms C121C-00

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…

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