Computer/Integrating System Diagnosis
DTC B0020
DTC DESCRIPTOR
This diagnostic procedure supports the following DTC:
- DTC B0019 EEPROM Error
- DTC B0020 RAM Failure
CONDITIONS FOR SETTING THE DTC B0020
The body control module (BCM) maintains a random access memory (RAM) copy of the electrically erasable programmable read only memory (EEPROM) data. Each of the eight tables is checked periodically to verify the checksum. If the checksum is wrong the DTC is set.
DIAGNOSTIC AIDS
Clear the DTC. If the DTC resets, remove fuse F29 to reset the BCM.
TEST
