Basic inspection
Power supply and ground circuitExhaust manifold
Exploded View
CALIFORNIA
Air fuel ratio sensor
Exhaust manifold heat shield (upper)
Exhaust manifold and three way catalyst
Exhaust manifold heat shield (rear)
Exhaust manifold heat shield (front)
Exhaust manifold gasket
Cylinder head
EXCEPT CALIFORNIA
Air fuel ratio ...
P0643 Sensor power supply
Description
ECM supplies a voltage of 5.0 V to some of the sensors systematically divided
into 2 groups, respectively.
Accordingly, when a short circuit develops in a sensor power source, a
malfunction may occur simultaneously
in the sensors belonging to the same group as the shorted-circui ...
Wiring diagram
Base audio
Wiring diagram
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