Toyota Sienna Service Manual: Inspection
1. INSPECT CHARCOAL CANISTER ASSEMBLY
(a) Visually check the charcoal canister for cracks or damage.
If cracks or damage are found, replace the charcoal canister assembly.
(b) Check charcoal canister operation.
(1) With the purge port closed, blow 1.67 kPa (17.0 gf/cm2, 0.24 psi) of air into the vent port, and check that air flows from the air inlet port.
If the result is not as specified, replace the charcoal canister assembly.
(2) With the vent port closed, blow 1.10 kPa (11.2 gf/cm2, 0.16 psi) of air to the air inlet port, and check that air flows from the purge port.
If the result is not as specified, replace the charcoal canister assembly.
(c) Check for air leakage.
(1) Remove the air hose between ports A and B.
(2) Connect SST (pressure gauge) to the vent port of the charcoal canister.
SST 09992-00242 (3) While holding port B, with the purge port and the air inlet port closed and port A open, apply 19.6 kPa (0.2 kgf/cm2, 2.81 psi) of pressurized air into the vent port, then confirm that pressure is retained for 1 minute.
If the result is not as specified, replace the charcoal canister assembly.
(d) Check the leak detection pump.
(1) Remove the detection pump from the charcoal canister.
(2) Check that air flows from port A to B and then C.
If the result is not as specified, replace the charcoal canister assembly.
(3) Connect the positive (+) lead to terminal 7 and the negative (-) lead to terminal 6.
(4) Check that the valve is closed.
If the result is not as specified, replace the charcoal canister assembly.
(5) Install the detection pump.
Removal
1. REMOVE CHARCOAL CANISTER PROTECTOR
(a) Remove the 6 bolts and charcoal canister protector.
2. REMOVE CHARCOAL CANISTER ASSEMBLY
(a) Disconnect the fuel tank vent hose from the
charcoal cani ...
Installation
1. INSTALL CHARCOAL CANISTER ASSEMBLY
(a) Install the 3 bolts and charcoal canister.
Torque: 29 N*m (296 kgf*cm, 21 ft.*lbf)
(b) Connect the purge line hose to the charcoal
canister.
(c) ...
Other materials:
Removal
1. Disconnect battery negative terminal
2. Remove instrument cluster finish panel
sub-assembly center
Hint:
(see page ip-9)
3. Remove transmission control cable assembly
(a) Remove the nut from the control shaft lever.
(b) Disconnect the transmission control cable assembly
from the con ...
ECM / PCM Processor
DESCRIPTION
The ECM continuously monitors its internal processors (CPUs), A/F sensor
transistors and heated oxygen
sensor (HO2S) transistors. This self-check ensures that the ECM is functioning
properly. These are
diagnosed by internal "mirroring" of the main and sub CPUs to det ...
Diagnosis system
1. CHECK DLC3
The vehicle's ECU uses ISO 15765-4 for
communication protocol. The terminal arrangement
of the DLC3 complies with SAE J1962 and matches
the ISO 15765-4 format.
NOTICE:
*: Before measuring the resistance, leave the
vehicle as is for at least 1 minute and do not
...
