Preparation
Component partsDTC/circuit diagnosis
U1000 CAN COMM CIRCUIT
Description
CAN (Controller Area Network) is a serial communication system for real time
application. It is an on-vehicle
multiplex communication system with high data communication speed and excellent
error detection ability.
Many electronic control units are equipp ...
Precautions on FCW system
WARNING
The FCW system is intended to warn
you before a collision occurs; it cannot
prevent a collision. It is the driver’s responsibility
to stay alert, drive safely
and be in control of the vehicle at all
times.
As there is a performance limit, the ...
P0420 three way catalyst function
DTC Description
DTC DETECTION LOGIC
The ECM monitors the switching frequency ratio of air fuel ratio (A/F)
sensor 1 and heated oxygen sensor 2.
A three way catalyst (manifold) with high oxygen storage capacity
will indicate a low switching frequency of heated oxygen sensor 2.
As oxygen sto ...