DTC 10

Self-diagnosis LED indicator blinks ten times:

Most likely a problem in the Intake Air Temperature (TA) Sensor Circuit.

Fig. 77 PGM-FI Self-diagnosis chart, warning lamp on-LED indicates code 10:

Fig. 77 PGM-FI Self-diagnosis chart, warning lamp on-LED indicates code 10:

The TA sensor is a temperature dependant resistor (thermistor). The resistance of the thermistor decreases as the intake air temperature increases as shown.

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.