mitsubishi Workshop Repair Guides

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EGR Valve|Service and Repair > < Component Tests and General Diagnostics|Page 2889
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Cause of problem

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Malfunction of motor. (Motor is not operating.)

Wave pattern characteristics

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Induced electromotive force from the motor turning does not appear.

Example 2

Cause of problem

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Open circuit in the line between the EGR valve and the ECM.

Wave pattern characteristics

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Current is not supplied to the motor coil on the open circuit side. (Voltage does not drop to 0 volt.) Furthermore, the induced electromotive force
wave pattern at the normal side is slightly different from the normal wave pattern.

EGR Valve|Service and Repair > < Component Tests and General Diagnostics|Page 2889