C1282

DTC C1282:

CIRCUIT DESCRIPTION
This DTC allows the EBCM to check for a calibration malfunction by comparing the calibration value to a known value "checksum" stored in the EEPROM. This DTC is also used as a security measure to prevent improper use of calibrations or changes to these calibrations that may alter the designed function of ABS.

CONDITIONS FOR SETTING THE DTC
DTC C1282 can be set any time after the ignition is turned to the RUN position. If the program identifier is incorrect or the memory "checksum" is incorrect, a malfunction exists.

ACTION TAKEN WHEN THE DTC SETS
A malfunction DTC is stored, ABS is disabled, and the amber ABS warning indicator is turned on.

DIAGNOSTIC AIDS
An intermittent DTC C1282 may be caused by a bad cell in the EEPROM that is sensitive to temperature changes. If DTC C1282 has set more than once, but is intermittent, replace EBCM. The frequency of the malfunction can be checked by using the enhanced diagnostic function of the scan tool.