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 you find the cause of the problem. The numbers
indicate the priority of the likely
cause of the problem. Check each part in the order shown. If necessary, repair
or replace these parts.
Symptom
Suspect Area
Hard steering
Tires ...
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