Engine Immobiliser System

TERMINALS OF ECM

CHECK ECM

Terminals Of ECM - Connector View:

Pinouts:

a. Check the voltage and continuity of each terminal of the wire harness side connectors.

NOTE:
- The check should be start from the backside of the ECM with the ECM connector being connected.
- Inspect the power source voltage (ignition switch ON: 10 - 14 V) and the body ground (ignition switch OFF: below 5 Ohms (each ground terminal <-> engine ground body ground)) before the check.

HINT: If a "waveform" is specified in the table, the actual waveform is provided on the given image.

Oscilloscope Waveforms:

b. Using an oscilloscope, inspect.

NOTE: The waveform provided on this text does not include noise and chattering.

HINT: If the result is not as specified, the ECM may malfunction.