Distributor Ignition (DI) System

DESCRIPTION
The distributor ignition (DI) system has a crankshaft position (CKP) sensor and a camshaft position (CMP) sensor. The CKP sensor sends crankshaft position information to the power train control module (PCM). The PCM converts the information to determine engine speed (RPM). The PCM uses the RPM signal from the DI system for control of line pressure, shift scheduling and torque converter clutch (TCC). Wide open throttle (WOT) shift control is also affected by the DI system input.

SYMPTOMS
If the engine speed signal has a fault, harsh engagements, firm shifts, or late WOT shifts may occur. Also, TCC apply may not occur.

DTC's
P0300-P0308, P0320, P0340, P1351-P1364