Toyota Highlander manuals

Toyota Highlander Service Manual: Location

Location


SYSTEM DIAGRAM

The emission control system is determined by the ECM based on signals from various sensors.

SYSTEM DIAGRAM


Emission control system (3MZ-FE)
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On-vehicle inspection
1. INSPECT AIR-FUEL RATIO COMPENSATION SYSTEM (a) Measure the voltage between the terminals of the ECM connectors. Standard: NOTICE: Connect test leads to the connector's backside. The co ...

More about Toyota Highlander:

Engine
ON-VEHICLE INSPECTION HINT: Inspect these items when the engine is cold. 1. REPLACE TIMING BELT (See page 2AZ-FE: 14-68 , 3MZ-FE: 14-206 ) 2. INSPECT DRIVE BELT (See page 2AZ-FE: 14-5 , 3MZ-FE: 14-125 ) 3. REPLACE SPARK PLUGS (See page 2AZ-FE: 18-1 , 3MZ-FE: 18-7 ) 4. Canada: INSPECT AIR FILT ...

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