SX4 4WD L4-2.0L (2008)
Engine Control Module: Service Precautions
Precautions of ECM Circuit Inspection
Precautions of ECM Circuit Inspection
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ECM connectors are waterproofed. Each terminal of the ECM connectors is sealed up with the grommet. Therefore, when measuring circuit
voltage, resistance and/or pulse signal at ECM connector, do not insert the tester's probe into the sealed terminal at the harness side. When
measuring circuit voltage, resistance and/or pulse signal at ECM connector, connect the special tool to the ECM connectors. And, insert the tester's
probe into the special tool's connectors at the harness side, and then measure voltage, resistance and/or pulse signal. Or, ECM and its circuits may
be damaged by water.
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Wire colors of the special tool's connectors are different from the ones of the ECM connectors. However, the circuit arrangement of the special
tool's connectors is same as the one of the ECM connectors. Therefore, measure circuit voltage and resistance by identifying the terminal location
subject to the measurement.
