1230 code(s) in this category. Page 47 of 52. Select one to see the detailed diagnosis.
Red (U)
Fault on the ignition START output — module cannot drive the starter solenoid via this line. A communication l…
Fault on the ignition OFF output. A communication loss with this module breaks any function relying on its dat…
Fault on the combined ACC/OFF ignition output. A communication loss with this module breaks any function relyi…
The control module's security certificate (used for authenticated communication, secure boot or vehicle anti-t…
The cryptographic key or certificate used to authenticate inter-module communication is missing or invalid.…
The received authentication signal contains invalid data — message authentication code does not match expected…
Authentication signal arrives within tolerances but timing or content drifted from expected behavior.…
Input power line A voltage is electrically within range but does not match expected behavior — drift, slow ris…
Input power line A voltage below expected range. A communication loss with this module breaks any function rel…
Input power line A voltage above expected range — typically charging system overvoltage. A communication loss …
Intermittent dropouts or noise on input power line A. A communication loss with this module breaks any functio…
Input power line B voltage below expected range. A communication loss with this module breaks any function rel…
Input power line B voltage above expected range. A communication loss with this module breaks any function rel…
Intermittent dropouts or noise on input power line B. A communication loss with this module breaks any functio…
Input power line C voltage below expected range. A communication loss with this module breaks any function rel…
Input power line C voltage above expected range. A communication loss with this module breaks any function rel…
Intermittent dropouts or noise on input power line C. A communication loss with this module breaks any functio…
Open circuit at the control module cooling fan (used to keep heavy ECUs like ADAS compute or inverter controll…
Module cooling fan control voltage below expected range. A communication loss with this module breaks any func…
Module cooling fan control voltage above expected range. A communication loss with this module breaks any func…
Module cooling fan circuit electrically OK but fan does not run as commanded — bearing seized, blade obstructe…
The control module is reporting that its calibration data is missing or incomplete — required parameter sets h…