DTC 4

Self-diagnosis LED indicator blinks four times:

Most likely a problem in the Crank Circuit of TDC/Crank Sensor.

Fig. 71 PGM-FI Self-diagnosis chart, warning lamp on-LED indicates code 4:

Fig. 71 PGM-FI Self-diagnosis chart, warning lamp on-LED indicates code 4:

The Check Engine warning light and ECU LED 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.