PRE-INSPECTION FOR DIAGNOSTIC
Basic Inspection
BASIC INSPECTION
1.INSPECTION START
PreparationAir cleaner
The air cleaner filter should not be cleaned and
reused. Replace it according to the maintenance
log shown in the "Maintenance and schedules"
section of this manual. When replacing the filter,
wipe the inside of the air cleaner filter housing
and the cover with a damp cloth.
To remove the ...
Steering switch
Description
When one of the steering wheel audio control switches is pushed, the
resistance in the steering wheel audio
control switch circuit changes, depending on which button is pushed.
Diagnosis Procedure
1.CHECK STEERING WHEEL AUDIO CONTROL SWITCH RESISTANCE
Turn ignition switch ...
P0420, P0430 three way catalyst function
DTC Logic
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 ...