Silhouette V6-191 3.1L VIN D TBI (1995)
Crank Signal
CIRCUIT DESCRIPTION
Crank signal is a 12 volt signal to the Powertrain Control Module (PCM) during cranking to allow enrichment and cancel diagnostics until engine
is running and 12 volts is no longer on the circuit.
CHART TEST DESCRIPTION
Number(s) below refer to circled number(s) on the diagnostic chart.
1. Checks for normal (cranking) voltage to terminal "C9" of PCM. Test light should be "ON" during cranking.
2. Checks to determine if source of blown fuse was a faulty PCM.
