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Reference Signal <--> [Cranking Signal]|Description and Operation|Page 2664 > < Coolant Temperature Switch|Page 2660
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Reference Signal: Description and Operation

 Crank Signal

NOTE:  Because different models and engine applications vary in wire colors, circuit numbers, and pin numbers, the above image is a typical example.
Refer to COMPUTERS AND CONTROL SYSTEMS/SCHEMATIC AND ROUTING DIAGRAMS for specific schematic applications.

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.

Reference Signal <--> [Cranking Signal]|Description and Operation|Page 2664 > < Coolant Temperature Switch|Page 2660