MIL Circuit
DESCRIPTION
The MIL (Malfunction Indicator Lamp) is used to indicate vehicle malfunctions
detected by the ECM. By turning the ignition switch to ON, power is supplied to
the MIL circuit, and the ECM provides the circuit ground which illuminates the MIL.
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Back Door Entry Unlock Function does not Operate
DESCRIPTION
If the entry back door open function does not operate but the back door entry
lock function operates, the communication between the vehicle and key is normal.
As a faulty part, the back door open switch circuit (from the back door opener switc ...
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 ...