DTC P16BE: Starter Relay 1 Malfunction: General Description
To prevent the starter from continuing to rotate due to a switching failure of the starter cut relay, two starter cut relays are connected in series.
When the input voltage of the STRLD terminal exceeds a set voltage even when the starter cut relay output (STRLY) is turned off, the PCM detects the starter cut relay 1 turn on switching failure and a DTC is stored.
When the starter is turned on, but the STRLD terminal input voltage does not exceed the upper or lower limit, a simultaneous failure of both starter cut relays or the STRLD open circuit is detected.