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:
Combination meter
Warning Lights:
Symptom
Suspect Area
Check Engine warning light does not come on.
ECM
Wire Harness or Connector
Combination Meter Assy
Discharge warning light does not come on.
ECM
Wire Harness or Conn ...
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