Skylark V6-3100 3.1L VIN M SFI (1996)
Powertrain Control Module: Diagram Information and Instructions
On Board Diagnostics II (OBDII) Symbol
On-Board Diagnostics II (OBDII) Symbol
The On-Board Diagnostics II (OBDII) symbol is used on circuit diagrams to alert the technician that the circuit is essential for OBDII emission control
circuit operation. Any circuit which, if it fails, causes the SERVICE ENGINE SOON indicator to turn on, is identified as an OBDII circuit.
