System description
B terminal C 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 ...
Washer level switch signal circuit
Description
Transmits the washer fluid level switch signal to the
combination meter.
Component Function Check
1.COMBINATION METER INPUT SIGNAL
Select "METER/M&A" on CONSULT.
Monitor "WASHER W/L" of "DATA MONITOR" under
the following conditions.
>> I ...
B260A ignition relay
Description
BCM turns ON the following relays to ignition power supply to each ECU when
the ignition switch is turned
ON.
Ignition relay-1 (inside IPDM E/R)
Ignition relay-2 (inside fuse block (J/B))
Front blower motor relay
BCM checks any ignition relay ON request for consistency wi ...