1. INSTALL TIRE PRESSURE WARNING RESET SWITCH

(a) Engage the 2 claws to install the tire pressure warning reset switch to the lower instrument panel finish panel sub-assembly LH.
2. INSTALL LOWER INSTRUMENT PANEL FINISH PANEL SUB-ASSEMBLY LH
3. INSTALL COWL SIDE TRIM SUB-ASSEMBLY LH
4. INSTALL FRONT DOOR SCUFF PLATE LH
5. CONNECT CABLE TO NEGATIVE BATTERY TERMINAL
6. INSPECT TIRE PRESSURE WARNING SYSTEM
HINT: See page TW-25.
Inspection
Brake controlSymptom 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 ...
Trip information
Type A
Press the “CAR” button.
Type B
Press the “APPS” button, and then select “Eco” on the screen.
If the “Past Record” screen is displayed, select “Trip Information”.
Reset the trip information data
Previous fuel consumption per
minute
Current fuel ...
Throttle Actuator Control Throttle Body Range / Performance
DESCRIPTION
The Electronic Throttle Control System (ETCS) is composed of the throttle
actuator, Throttle Position (TP)
sensor, Accelerator Pedal Position (APP) sensor, and ECM. The ECM operates the
throttle actuator to
regulate the throttle valve in response to driver inputs. The TP senso ...