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:

Checking and replacing fuses
If any of the electrical components do not operate, a fuse may have blown. If this happens, check and replace the fuses as necessary. Vehicles without a smart key system: turn the engine switch to the "lock" position. Vehicles with a smart key system: turn the engine switch off. ...

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