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
Vehicle Speed Sensor Signal (VSS) - Range Active I Inactive
This data indicates whether the
Body Function Controller (BFC) is acknowledging a Vehicle Speed Sensor signal at the Instrument Cluster via the Serial Peripheral Interface
(SPI) serial data line. Active, is displayed if the
Body Function Controller (BFC) is measuring a Vehicle Speed Sensor signal message at the Instrument Cluster via the Serial Peripheral Interface (SPI) serial data line. Inactive, is displayed if the Body Function Controller (BFC) is not measuring a Vehicle Speed Sensor signal message at the Instrument Cluster via the Serial Peripheral Interface (SPI) serial data line. The
Powertrain Control Module (PCM) constantly receives and converts the discrete A/C voltage signal generated by the Automatic Transmission Output (Shaft) Speed Sensor (A/T OSS Sensor) into a Digital Vehicle Speed Signal. The Powertrain Control Module (PCM) sends this digital vehicle speed signal information to the Body Function Controller (BFC) and other modules via the Class 2 serial data line and to the Instrument Cluster via the discrete Vehicle Speed Sensor Signal
(VSS) line. The Instrument Cluster calculates the correct vehicle speed to display in km/h (mph) based on the Vehicle Speed Signal input and drives the speedometer and odometer accordingly.