buick Workshop Repair Guides

Buick Workshop Service and Repair Manuals

ABOUT US
Reference Signal <--> [Cranking Signal]|Testing and Inspection|Page 2099 > < All Other Service Bulletins for Coolant Temperature Sensor/Switch (For Computer):|846E38|Page 2095

Skyhawk L4-112 1.8L Turbo VIN J FI (1984)

Page 1
background image

Reference Signal: Testing and Inspection

Fig. 025 - WIRING DIAGRAM for Chart C-1B Crank Signal. VIN J

CHART C-1B, CRANK SIGNAL

    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.

Reference Signal <--> [Cranking Signal]|Testing and Inspection|Page 2099 > < All Other Service Bulletins for Coolant Temperature Sensor/Switch (For Computer):|846E38|Page 2095