Operation CHARM: Car repair manuals for everyone.
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

Fail-Safe/Backup Function

FAIL-SAFE/BACKUP FUNCTION





When a malfunction of a main sensor or actuator is detected by the PCM, the transmission is controlled by preset control logic to maintain safe conditions for driving.
The following table shows how the fail-safe/backup function affects vehicle driveability and operation.