C1282

CIRCUIT DESCRIPTION
DTC C1282 allows the Electronic Brake Traction Control Module (EBTCM) to inspect for a calibration malfunction by comparing the calibration value to a known value (checksum). The EEPROM stores the checksum.
DTC C1282 also acts as a security measure to prevent improper use of calibrations or changes to these calibrations. Improper calibrations may alter the designed function of ABS/ETS.

CONDITIONS FOR SETTING THE DTC
DTC C1282 can set any time after the ignition is turned to the ON position.
A malfunction exists if the program identifier is incorrect or the memory checksum is incorrect.

ACTION TAKEN WHEN THE DTC SETS
- A malfunction Diagnostic Trouble Code (DTC) stores.
- The ABS/ETS disables.
- The amber ABS/ETS warning indicators turn on.

CONDITIONS FOR CLEARING THE DTC
- The condition responsible for setting the DTC no longer exists and the Scan Tool Clear DTCs function is used.
- 100 drive cycles pass with no DTCs detected.

DIAGNOSTIC AIDS
A bad cell in the EEPROM that is sensitive to temperature changes may cause an intermittent DTC C1282. If DTC C1282 sets more than once, but is intermittent, replace Electronic Brake Traction Control Module (EBTCM).

Use the enhanced diagnostic function of the Scan Tool in order to measure the frequency of the malfunction. Refer to the Scan Tool manual or Scan Tool Diagnosis for the procedure.