2000 Sunbird L4-121 2.0L VIN B 2-bbl (1984)
Cranking Signal: Testing and Inspection
Fig. 013 - Wiring Diagram for Chart C-1B Crank Signal. VIN P
CHART C-1B, CRANK SIGNAL
Crank signal is a 12V signal to the ECM during cranking to allow enrichment and cancel diagnostics until engine is running or 12V is no longer on
circuit.
