DTC Detection Logic

DTC No.

CONSULT screen terms

(Trouble diagnosis content)

DTC detection condition

U1249

AUDIO H/U CONN

(Audio head unit connection error)

1

Diagnosis condition

When ignition switch is ON.

Signal (terminal)

AV control unit power supply and ground circuit

Threshold

--

Diagnosis delay time

30 seconds or more

2

Diagnosis condition

When ignition switch is ON.

Signal (terminal)

AV communication signal

Threshold

Abnormality

Diagnosis delay time

30 seconds or more