Part 2 of 2

DTC P083:

Ignition Module Circuit:

CIRCUIT DESCRIPTION:
This diagnostic test checks for 24X signal at a logic high condition. The fault could be induced by the failure of either Crankshaft Position A or B Sensor input signal to the Ignition Control Module. Under such a condition, the Ignition Control Module would force the 24X signal high. This test also checks for 24X shorted to battery externally. If either condition is met Code P083 is set.

NOTES ON FAULT TREE:
6. If engine stalls, the problem is with crankshaft position "A" sensor. If the engine remains running, the ignition control module or CKT 647 are shorted high.
7. Checking crankshaft position "A" sensor and circuitry for opens or shorts. The correct resistance should be between 800 and 1600.
8. Checking if CKT 1727 or CKT 1728 is shorted to ground. If the CKT is shorted to ground it will measure less than 100.
9. If the sensor is able to produce a DC voltage greater than 0.25 volt the sensor is OK.
10. Checking if CKT 647 is shorted high or if the ICM is keeping it high. If you measure greater than 0 Hz the ICM and CKT 647 is OK, the fault is intermittent.