Description
Normal open, normal closed and mixed type relays
Relays can mainly be divided into three types: normal open, normal closed and mixed type relays.

Type of standardized relays


Harness connector
Fuse block - junction box (J/B)Cruise control operations
The cruise control allows driving at a speed between
25 - 89 MPH (40 - 144 km/h) without
keeping your foot on the accelerator pedal.
To turn on the cruise control, push the
ON·OFF switch. The CRUISE indicator light in
the instrument panel comes on.
To set cruising speed, accelerate the ve ...
P0420 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 storage c ...
DTC/circuit diagnosis
POWER SUPPLY AND GROUND CIRCUIT
A/C AUTO AMP.
A/C AUTO AMP. : Diagnosis Procedure
Regarding Wiring Diagram information, refer to HAC-145, "Wiring Diagram" or
HAC-152, "Wiring Diagram".
1.CHECK FUSE
Check fuses [No. 5, 8 and 21, located in the fuse block (J/B)].
NOTE:
Ref ...