Toyota Sienna Service Manual: 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 is between 4.4°C and 35°C (40°F and 95°F).
- The intake air temperature is between 4.4°C and 35°C (40°F and 95°F).
- Vehicle was driven in the city area (or on freeway) for 10 minutes or more.
(b) Monitor Conditions
(1) Turn the ignition switch off and wait for 6 hours.
HINT:
Do not start the engine until checking Readiness Monitor status. If the engine is started, the step described above must be repeated.
(c) Monitor Status
(1) Connect an intelligent tester to the DLC3.
(2) Turn the ignition switch to the ON position.
(3) Turn the tester or scan tool ON.
(4) Check the Readiness Monitor status displayed on the tester or scan tool.
If the status does not switch to COMPL (complete), restart the engine, make sure that the preconditions have been met, and then perform the Monitor Conditions again.
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 ...
A/F sensor and ho2s monitors
(a) Preconditions
The monitor will not run unless:
2 minutes or more have elapsed since the engine
was started.
The Engine Coolant Temperature (ECT) is 75°C
(167°F) or more.
Cumulative ...
Other materials:
GPS Mark is not Displayed
INSPECTION PROCEDURE
1 CHECK CABIN
Check the cabin for any object that might interrupt radio
reception on the instrument panel. If such an object
exists, remove it and check if the GPS mark reappears.
HINT:
The GPS uses extremely faint radio waves originating
from satellites. If the si ...
Precaution
1. PRECAUTION OF HEADLIGHT BULB
REPLACEMENT
When any defects such as deformation, crack, dent,
chipping, etc. are identified on the discharge
headlight (especially, on the light control ECU),
replace it with a new one.
Even if the operation seems to be normal, the failsafe
...
Lost Communication with Cruise Control Front
Distance Range Sensor
DTC U0235 Lost Communication with Cruise Control Front
Distance Range Sensor
DESCRIPTION
The laser sensor and distance control ECU transmit the data for general
vehicle control and diagnosis
function along the communication line. The laser sensor transmits information
about the vehicle in fr ...
