Toyota Sienna Service Manual: Terminals of ECU
1. Instrument Panel Junction Block Assembly
Problem symptoms table
HINT:
Proceed to troubleshooting of each circuit in the table below.
1. HEADLIGHT AND TAIL LIGHT SYSTEM
2. AUTOMATIC LIGHT CONTROL SYSTEM
3. LIGHT AUTO TURN OFF SYSTEM
4. FOG LIGHT SY ...
DTC check / clear
1. USING INTELLIGENT TESTER
Hook up the intelligent tester to the DLC3.
Monitor the ECU data by following the prompts on
the tester screen.
HINT:
intelligent tester has "S ...
Other materials:
Evaporative Emission System Switching Valve Control Circuit High
DTC SUMMARY
DESCRIPTION
The circuit description can be found in the EVAP (Evaporative Emission)
System (See page ES-404).
INSPECTION PROCEDURE
Refer to the EVAP System (See page ES-404).
MONITOR DESCRIPTION
5 hours*1 after the ignition switch is turned off, the electric vacuum pump
...
Rear Occupant Classification Sensor LH Collision
Detection
DTC B1787 Rear Occupant Classification Sensor LH Collision
Detection
DESCRIPTION
DTC B1787 is output when the occupant classification ECU receives a collision
detection signal sent by
the rear occupant classification sensor LH if an accident occurs.
DTC B1787 is also output when the front s ...
Reassembly
1. INSTALL HEATER RADIATOR UNIT SUB-ASSEMBLY
(a) Install the heater radiator unit sub-assembly to the
air conditioning blower assembly.
(b) Install the 2 O-rings to the heater water valve
assembly.
(c) Install the 3 screws and the heater water valve
assembly.
(d) Install the 2 s ...
