Cranking Signal: Description and Operation

Wiring Diagram For Crank Signal:

The computer uses this signal to tell when the vehicle is in the CRANKING mode. This information is used to allow enrichment and cancel diagnostics while the engine is cranking.`

CIRCUIT DESCRIPTION:

Crank signal is a 12.0 volt signal to the ECM during cranking to allow enrichment and cancel diagnostics until engine is running.