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:
Problem symptoms table
Use the table below to help determine the cause of the problem. The causes of
problem are listed
in order of probability in the "Suspected Area" column. Check each part in
order. If necessary, replace
these parts.
Symptom
Suspected Area
Wander
Wheel alig ...
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