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2008 - MX-5 - Engine

VARIABLE TUMBLE SHUTTER VALVE SWITCH INSPECTION [LF]

NOTE:

Voltage Inspection

1. Turn the ignition switch to the ON position (Engine off).
2. Verify that the PCM terminal 2AE voltage is as shown in the following table when the variable tumble shutter valve actuator rod is depressed and released by hand.

Variable tumble shutter valve switch output voltage

Condition

PCM terminal 2AE

Released (Open position)

B+

Depressed (Closed position)

Below 1.0


Circuit Open/Short Inspection

1. Disconnect the PCM connector.
2. Inspect the following harness for an open or short wiring. (Continuity inspection)
Open circuit
Short circuit


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