Cleaning and protecting
the vehicle exteriorCircuit inspection
A description of the main areas of each circuit inspection
is shown in the table below.
Item
Description
Circuit Description
The major role, operation of the circuit and its component parts are
explained.
Diagnostic Trouble Code No. and Detection item
Indicates ...
Pressure Control Solenoid "C" Performance (Shift
Solenoid Valve SL3)
SYSTEM DESCRIPTION
The ECM uses signals from the vehicle speed sensor to detect the actual gear
position (1st, 2nd, 3rd, 4th
or 5th gear).
Then the ECM compares the actual gear with the shift schedule in the ECM memory
to detect mechanical
troubles of the shift solenoid valves and valve bo ...
ECM / PCM Processor
DESCRIPTION
The ECM continuously monitors its internal processors (CPUs), A/F sensor
transistors and heated oxygen
sensor (HO2S) transistors. This self-check ensures that the ECM is functioning
properly. These are
diagnosed by internal "mirroring" of the main and sub CPUs to det ...