1. CHECK DLC3


NOTICE: *: Before measuring the resistance, leave the vehicle as is for at least 1 minute and do not operate the ignition switch, any other switches, or the doors.
If the result is not as specified, the DLC3 may have a malfunction. Repair or replace the harness and connector.
HINT: If the display shows an error message after having connected the cable of the intelligent tester to the DLC3, turned the ignition switch to the ON position, and operated the tester, there is a problem on either the vehicle side or the tool side.
Terminals of ECU
Data list / active testMaster Reset/ Voice Processing Device ON Error
DTC 01-DD Master Reset
DTC 01-E1 Voice Processing Device ON
DESCRIPTION
DTC No.
DTC Detection Condition
Trouble Area
01-DD
*1
The device that should be the master has been
disconnected after the engine starts.
Radio and navigation assembly po ...
Symptom confirmation and diagnostic trouble code
HINT:
The diagnostic system in the SIENNA has various
functions.
The first function is the Diagnostic Trouble Code
(DTC) check. A DTC is a code stored in the ECU
memory whenever a malfunction in the signal circuits
to the ECU occurs. In a DTC check, a previous
malfunction's DTC can be ...
Magnetic clutch relay
ON-VEHICLE INSPECTION
1. INSPECT MAGNETIC CLUTCH RELAY
(a) Remove the magnetic clutch relay.
(b) Measure the resistance according to the value(s) in
the table below.
Standard resistance
If the resistance is not as specified, replace the
magnetic clutch relay. ...