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.
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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:
Power back door main switch
INSPECTION
1. INSPECT POWER BACK DOOR MAIN SWITCH
Inspect the resistance of the main switch.
Resistance
If the result is not as specified, replace the switch.
Apply battery voltage and check the illuminates.
OK
HINT:
Whether the switch illuminates or not will not affect
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Disassembly
1. REMOVE RH SEAT REAR SEAT RECLINING COVER
Remove the 2 screws.
Remove the RH seat rear seat reclining cover by
pulling it out in the arrow mark direction shown in
the illustration.
2. REMOVE LH SEAT REAR SEAT RECLINING COVER
Remove the 2 screws.
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Open in Front Passenger Side Squib 2nd Step
Circuit
DTC B1186/58 Open in Front Passenger Side Squib 2nd Step
Circuit
DESCRIPTION
The front passenger side squib 2nd step circuit consists of the center airbag
sensor assembly and the
front passenger airbag assembly.
The circuit instructs the SRS to deploy when deployment conditions are met.
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