Manuals through 2025 now available!
Our trusted friends have launched a new website named LEMON, which has newer manuals. It also contains all the CHARM manuals.
LEMON is the spiritual successor to CHARM, I recommend you try it!
Link:
lemon-manuals.la or
lemon-manuals.org.ua
(Some people have issue connecting. LEMON is investigating. For now, use Firefox or change your DNS server)
Or, hide this message:
temporarily or
permanently
EEPROM
The Electrically Erasable Programmable Read Only Memory
(EEPROM) is a permanent memory that is physically soldered within the
PCM. The EEPROM contains program and calibration information that the PCM needs to control powertrain operation. Unlike the PROM used in certain past applications, the EEPROM is not replaceable. If the PCM is replaced, the new PCM will need to be programmed. Techline equipment (Tech 2 Scan Tool) containing the correct program and calibration for the vehicle is required to program the PCM.