gmc Workshop Repair Guides

GMC Workshop Service and Repair Manuals

Cranking Signal|Description and Operation|Page 3574 > < Diagram Information and Instructions|Page 3570
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Cranking Signal: Description and Operation

Crank Signal Circuit

PURPOSE:

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

Cranking Signal|Description and Operation|Page 3574 > < Diagram Information and Instructions|Page 3570