SYSTEM DIAGRAM
System Description
How To Proceed With TroubleshootingRandom / Multiple Cylinder Misfire Detected (P0300-P0304)
DESCRIPTION
When the engine misfires, high concentrations of hydrocarbons (HC) enter the
exhaust gas. Extremely high hydrocarbon concentration levels can cause an increase
in exhaust emission levels. Extremely high concentrations of hydrocarbons can also ...
ECM Power Source Circuit
DESCRIPTION
When the ignition switch is turned to ON, the battery voltage is applied to IGSW
of the ECM. The output signal from the MREL terminal of the ECM causes a current
to flow to the coil, closing the contact of the engine room junction block assemb ...
Cruise Main Indicator Light Circuit
DESCRIPTION
The ECM detects a cruise control main switch signal and sends it to
the combination meter assembly through CAN. Then the CRUISE main indicator
light comes on.
The CRUISE main indicator light circuit uses CAN for communication.
...