DTC 4

Check Engine Light indicates trouble code 4:

Most likely an electrical problem in the TDC/Crank/Cyl Sensor system.

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

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

The CRANK sensor determines timing for fuel injection and ignition of each cylinder and also detects engine RPM. The TDC sensor determines ignition timing at start-up (cranking) and when crank angle signal is abnormal.

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.