Monte Carlo V6-262 4.3L (1986)
Cranking Signal: Testing and Inspection
Fig. 017 - Wiring Diagram for Chart C-1B Crank Signal. VIN Z
CHART C-1B
CRANK SIGNAL
ALL ENGINES
FUEL INJECTION (TBI)
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.
