A082

DTC AO82 Calibration Malfunction:

Circuit Description:

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

Failure Condition:

DTC A082 can be set at key-up. If the program identifier is incorrect or the memory checksum is incorrect, a malfunction exists.


Action Taken:

A DTC A082 is stored, ABS is disabled and the "ABS" indicator is turned on.

Test Description:

Number(s) below refer to circled Number(s) on the diagnostic chart.
1. This step checks to see if the malfunction is present during diagnosis. If present, the EBCM is not functioning correctly and must be replaced.


Diagnostic Aids:

An intermittent DTC AO82 may be caused by a bad cell in the EEPROM that is sensitive to temperature changes. If DTC A082 failed more than once, but is intermittent, replace the EBCM.

The frequency of the malfunction can be checked by using the enhanced diagnostic function of the TECH 1.