Toyota Sienna Service Manual: Catalyst monitor (active air-fuel ratio control type)
(a) Preconditions
The monitor will not run unless:
- The MIL is OFF.
(b) Drive Pattern
(1) Connect an intelligent tester.
(2) Turn the ignition switch to the ON position.
(3) Turn the tester or scan tool ON.
(4) Clear the DTCs.
(5) Start the engine and warm it up.
(6) Drive the vehicle at between 40 mph and 70 mph (64 km/h and 113 km/h) for at least 10 minutes.
(c) Monitor Status
(1) Check the Readiness Monitor status displayed on the tester.
(2) If the status does not switch to COMPL (complete), extend the driving time.
Purpose of readiness tests
The On-Board Diagnostic (OBD II) system is
designed to monitor the performance of emissionrelated
components, and indicate any detected
abnormalities with DTCs (Diagnostic Trouble Codes).
...
Evap monitor (key-off type)
(a) Preconditions
The monitor will not run unless:
The fuel tank is less than 90% full.
The altitude is less than 8000 ft (2450 m).
The vehicle is stationary.
The engine coolant temperature ...
Other materials:
Unlock Warning Switch Circuit
DESCRIPTION
The unlock warning switch detects if the key is in the ignition key cylinder.
The unlock warning switch turns on when the key is inserted into the ignition
key cylinder and turns off
when the key is removed from the cylinder.
The body ECU is connected to the unlock warning swit ...
Scratched / Reversed Disc
63-46 Scratched / Reversed Disc
DESCRIPTION
DTC No.
DTC Detection Condition
Trouble Area
63-46
Scratches or dirt is found on CD surface or CD is set
upside down.
CD
Radio and navigation assembly
INSPECTION PROCEDURE
H ...
Precaution
1. INITIALIZATION
NOTICE:
Perform RESET MEMORY (AT initialization) when
replacing the automatic transaxle assembly, engine
assembly or ECM (See page AX-16).
Perform REGISTRATION (VIN registration) when
replacing the ECM (See page ES-15).
HINT:
Initializatio ...
