Toyota Sienna Service Manual: On-vehicle inspection
1. INSPECT MASS AIR FLOW METE
NOTICE:
- Perform the mass air flow (MAF) meter inspection by following the procedures below.
- Only replace the MAF meter when the MAF value in the DATA LIST (with the engine stopped) are not within the normal operating range or there is foreign matter on the MAF meter platinum hot wire (heater).
- Read the values using the intelligent tester (MAF).
NOTICE:
- Perform the inspection with the vehicle indoors and on a level surface.
- Perform the inspection of the MAF meter while it is installed to the air cleaner case (installed to the vehicle).
- During the test, do not use the exhaust air duct to perform suction on the exhaust pipe.
- Turn the ignition switch to the ON position (do not start the engine).
- Turn the tester on.
- Select the following menu items: DIAGNOSIS / ENHANCED OBD II / DATA LIST / PRIMARY / PRIMARY / MAF.
- Wait 30 seconds, and read the values on the intelligent tester.
- Standard condition: Less than 0.70 g/s If the result is not as specified, replace the MAF meter.
- If the result is within the specified range, inspect the cause of the extremely rich or lean air fuel ratio.
Mass air flow meter
Components
...
Removal
1. REMOVE MASS AIR FLOW METER
Disconnect the mass air flow meter connector.
Remove the 2 screws and mass air flow meter.
...
Other materials:
Pressure Control Solenoid "A" Performance (Shift Solenoid
Valve SL1)
SYSTEM DESCRIPTION
The ECM uses signals from the vehicle speed sensor to
detect the actual gear position (1st, 2nd, 3rd, 4th
or 5th gear).
Then the ECM compares the actual gear with the shift schedule in the ECM memory
to detect mechanical
problems of the shift solenoid valves, valve b ...
Brake
GENERAL MAINTENANCE
1. INSPECT BRAKE LINE PIPES AND HOSES
HINT:
Check the entire circumference and length of the brake
hoses using a mirror as required in a well-lighted area.
Turn the front wheels fully right or left before checking
the front brakes.
(a) Check all the brake lines and h ...
Power Slide Door LH does not Operate When Satellite Switch is
Pressed
DESCRIPTION
The power slide door operates only when the power slide door main
switch is ON (switch free: orange
paint on the top of the switch appears). The power slide door ECU LH
controls the power slide door LH,
which activates the slide door motor to open / close the slide do ...
