Engine Control System

Check Engine Light blinks four times:

Most likely a problem in the Crankshaft Position (CKP) Sensor Circuit.

DTC 4: Crankshaft Position (CKP) Sensor (Part 1 Of 2):

DTC 4: Crankshaft Position (CKP) Sensor (Part 2 Of 2):

The Check Engine warning light may come on, indicating a system problem, when, in fact, there is a poor or intermittent electrical connection. First, check the electrical connections, clean or repair connections if necessary.