DTC U0164:00 [EMERGENCY CALL UNIT (E)]

id0902sc053000

Outline

System malfunction location

Communication error with dash-electrical supply unit

Detection condition

•  The emergency call unit cannot receive a CAN signal from the dash-electrical supply unit for 5 s or more.

Fail-safe

Not applicable

Possible cause

•  Malfunction in CAN communication line between the dash-electrical supply unit and emergency call unit

•  Dash-electrical supply unit malfunction

•  Emergency call unit malfunction

System wiring diagram

Not applicable

Connector diagram

Not applicable

System malfunction location	Communication error with dash-electrical supply unit
Detection condition	• The emergency call unit cannot receive a CAN signal from the dash-electrical supply unit for 5 s or more.
Fail-safe	Not applicable
Possible cause	• Malfunction in CAN communication line between the dash-electrical supply unit and emergency call unit • Dash-electrical supply unit malfunction • Emergency call unit malfunction
System wiring diagram	Not applicable
Connector diagram	Not applicable

Diagnostic Procedure

• Perform an inspection in accordance with the multiplex communication system diagnostic procedure. (See CONTROLLER AREA NETWORK (CAN) MALFUNCTION DIAGNOSIS FLOW [L.H.D. (E)].) (See CONTROLLER AREA NETWORK (CAN) MALFUNCTION DIAGNOSIS FLOW [R.H.D.].)