DTC 15

Self-diagnosis LED indicator blinks fifteen times:

Most likely a problem in the Ignition Output Signal Circuit.

Fig. 81 PGM-FI Self-diagnosis chart, warning lamp on-LED indicates code 15:

Fig. 81 PGM-FI Self-diagnosis chart, warning lamp on-LED indicates code 15:

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.