Toyota Highlander Service Manual: Location
SYSTEM DIAGRAM
The emission control system is determined by the ECM based on signals from various sensors.
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:
Downhill assist control
system
With the downhill assist control system, the vehicle is able to
descend a steep hill, maintaining a constant low speed of about
3 mph (5 km/h) without brake pedal operation.
Activating the downhill assist control system
Activating the downhill assist control system
press the “dac” switch.
...
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