Part 3 of 3

Chart A-3 - Engine Cranks But Won't Run (Part 3 of 3):

Wiring Diagram for Chart A-3 - Engine Cranks But Won't Run:

Test Description (Cont'd): The following numbered steps correspond with the step numbers on the diagnostic chart.

12. Jumpering the Crank Sensor harness terminals "B" and "C" together simulates a Crank signal to the C3-I module. Then, by repeatedly jumpering the Cam sensor harness termonals "A" and "B" togeather a Cam signal is simulated which should result in a spark.

13. Verifies a proper Crank signal circuit voltage of 6 to 9 volts and a good ground from the C3-I module to terminal "B" of the sensor connector.

14. Determines if reason for incorrect voltage reading was due to a fault in CKT 643, an open in CKT 642 or a faulty C3-I module.