VARIABLE TUMBLE SHUTTER VALVE ACTUATOR INSPECTION[ZJ, ZY, Z6]
id0113b1803100
Without Throttle Valve Actuator
Operation inspection
1. Disconnect the negative battery cable.
2. Remove the variable tumble shutter valve actuator.
3. Connect the battery positive voltage to terminal A or B, and verify that the gear moves.
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• If there is no malfunction, carry out the “Circuit Open/Short Inspection“.
• If there is any malfunction, replace the variable tumble shutter valve actuator.
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Terminal
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Gear rotation direction
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A
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B
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B+
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Ground
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Counterclockwise
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Ground
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B+
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Clockwise
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Circuit open/short inspection
1. Inspect the following wiring harnesses for an open or short circuit. (Continuity check)
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Open circuit
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• If there is no continuity, the circuit is open. Repair or replace the wiring harness.
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― Variable tumble shutter valve actuator terminal A and PCM terminal 2AJ
― Variable tumble shutter valve actuator terminal B and PCM terminal 2AF
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Short circuit
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• If there is continuity, the circuit is shorted. Repair or replace the wiring harness.
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― Variable tumble shutter valve actuator terminal A and power supply.
― Variable tumble shutter valve actuator terminal A and body ground.
― Variable tumble shutter valve actuator terminal B and power supply.
― Variable tumble shutter valve actuator terminal B and body ground.
With Throttle Valve Actuator
Motor inspection
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Caution
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• The property of the variable tumble shutter valve switch built into the variable tumble shutter valve actuator is adjusted to reduce the effect caused from the production tolerance of the intake manifold and variable tumble shutter valve actuator.
• If the variable tumble shutter valve actuator is removed from the intake manifold, a significant deviation to the switching performance results. Therefore, the variable tumble shutter valve actuator cannot be removed from the intake manifold.
1. Remove the intake manifold. (See INTAKE-AIR SYSTEM REMOVAL/INSTALLATION[ZJ, ZY, Z6])
2. Connect the battery positive voltage to terminal B or D, and inspection that the valve operation.
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• If there is no malfunction, carry out the “Circuit Open/Short Inspection”.
• If there is any malfunction, replace the intake manifold.
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Terminal
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Valve operation
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D
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B
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B+
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Ground
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open → close
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Ground
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B+
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close → open
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Circuit open/short inspection
1. Inspect the following wiring harnesses for an open or short circuit. (Continuity check)
-
Open circuit
-
• If there is no continuity, the circuit is open. Repair or replace the wiring harness.
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― Variable tumble shutter valve actuator terminal B and PCM terminal 2AG
― Variable tumble shutter valve actuator terminal D and PCM terminal 2AK
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Short circuit
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• If there is continuity, the circuit is shorted. Repair or replace the wiring harness.
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― Variable tumble shutter valve actuator terminal B and power supply
― Variable tumble shutter valve actuator terminal B and body ground
― Variable tumble shutter valve actuator terminal D and power supply
― Variable tumble shutter valve actuator terminal D and body ground
