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 ...
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On-vehicle inspection
1. INSPECT SPEEDOMETER
(a) Check the operation.
Using a speedometer tester, inspect the speedometer for acceptable
indication error and check
the operation of the odometer.
Reference: km/h (Canada)
Reference: mph (U.S.)
NOTICE:
Tire wear and over or under tire press ...
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