Preparation
General maintenanceEngine speed signal circuit
Description
ECM sends engine speed signal to power steering control unit.
Diagnosis Procedure
1.PERFORM ECM SELF-DIAGNOSIS
With CONSULT
Perform ECM self-diagnosis.
2.CHECK HARNESS BETWEEN ECM AND POWER STEERING CONTROL UNIT FOR OPEN
Turn the ignition switch OFF.
Disconnect ECM connec ...
Fuel pump
Description
*: ECM determines the start signal status by the signals of engine speed and
battery voltage.
The ECM activates the fuel pump for several seconds after the ignition switch is
turned ON to improve engine
start ability. If the ECM receives a engine speed signal from the camsh ...
Can communication system
System Description
CAN communication is a multiplex communication system. This enables the
system to transmit and receive large quantities of data at high speed by connecting control units with two
communication lines (CAN-H and CAN-L).
Control units on the CAN network transmit signals usi ...