Toyota Sienna Service Manual: Inspection
1. INSPECT MASS AIR FLOW METER
- Visually check for any foreign matter on the
platinum hot wire (heater) of the mass air flow
meter.
OK: There is no foreign matter.
If the result is not as specified, replace the mass air flow meter.
- Measure the resistance according to the value(s) in the table below.
Standard resistance
Removal
1. REMOVE MASS AIR FLOW METER
Disconnect the mass air flow meter connector.
Remove the 2 screws and mass air flow meter.
...
Installation
1. REMOVE MASS AIR FLOW METER
Install the mass air flow meter with the 2 screws.
Connect the mass air flow meter connector.
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Other materials:
Precaution
1. PRECAUTION FOR VEHICLE WITH SRS AIRBAG
AND SEAT BELT PRETENSIONER
Some operations in this section may affect SRS
airbag system. Before performing the corresponding
operations, please read the NOTICE of the SRS
airbag for the proper operations.
COMPONENTS
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Transmission Range Sensor Circuit Malfunction
(PRNDL Input)
DESCRIPTION
The park/neutral position switch detects the shift lever position and sends
signals to the ECM.
MONITOR DESCRIPTION
These DTCs indicate a problem with the park/neutral position switch and the
wire harness in the park/
neutral position switch circuit.
The park/neutral po ...
Fail-safe chart
1. FAIL-SAFE FUNCTION
When communication fails in any of the main wires
(communication lines) due to a short circuit or other
causes, the fail-safe function, which is specified for
each system, operates to prevent the system from
malfunctioning.
The table below shows the effects on eac ...
