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Toyota Sienna Service Manual: Catalyst monitor (active air-fuel ratio control type)

Toyota Sienna Service Manual / Engine / 2Gr-fe engine control system / Sfi system / Readiness monitor drive pattern / Catalyst monitor (active air-fuel ratio control type)

Catalyst monitor (active air-fuel ratio control type)

(a) Preconditions

The monitor will not run unless:

(b) Drive Pattern

(1) Connect an intelligent tester.

(2) Turn the ignition switch to the ON position.

(3) Turn the tester or scan tool ON.

(4) Clear the DTCs.

(5) Start the engine and warm it up.

(6) Drive the vehicle at between 40 mph and 70 mph (64 km/h and 113 km/h) for at least 10 minutes.

(c) Monitor Status

(1) Check the Readiness Monitor status displayed on the tester.

(2) If the status does not switch to COMPL (complete), extend the driving time.

Purpose of readiness tests
The On-Board Diagnostic (OBD II) system is designed to monitor the performance of emissionrelated components, and indicate any detected abnormalities with DTCs (Diagnostic Trouble Codes). ...

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 ...

Other materials:

For vehicles equipped with traction control (trac) system
When using a 2-wheel drum tester such as a speedometer tester or chassis dynamometer, etc., or jacking up the front wheels and driving the wheels, always push in the TRAC cut ("TRAC OFF") switch and turn the TRAC system OFF. FOR VEHICLES EQUIPPED WITH TRACTION CONTROL (TRAC) SYS ...

Removal
1. REMOVE REAR SEAT LEG SIDE GARNISH SUBASSEMBLY LH  Disengage the clips and remove the seat leg side garnish. 2. REMOVE REAR NO. 2 SEAT ASSEMBLY LH Remove the bolt and locus cable.  Remove the 2 bolts and seat.  Remove the 2 headrests. ...

System description
1. MULTIPLEX COMMUNICATION SYSTEM (BEAN) The BEAN communication line is used to control the combination meter, the A/C amplifier, the airbag sensor assembly, the multiplex network body ECU, the power slide door ECU LH, the power slide door ECU RH, the power back door ECU, the seat posi ...

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