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

CKP Sensor Status

The scan tool displays Angle, Time A or Time B. During normal operation the PCM calculates crankshaft position in an angle based mode using the signals from both CKP sensors. If there is a problem with one of the signals, the PCM will switch to a time based calculation and the scan tool will indicate which signal is being used.