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Caution

• The supply pump is sealed to maintain proper function. Special tools and testers are required when disassembling the supply pump. Disassembling the supply pump without special tools and testers will cause a malfunction.

• Consult an authorized DENSO parts distributor for repair if suction control valve is possibly malfunctioning.

Resistance Inspection

1.Disconnect the negative battery cable. (See BATTERY REMOVAL/INSTALLATION [MZR-CD 2.2].)

2.Disconnect the suction control valve connector.

3.Measure the resistance between the suction control valve terminals using an ohmmeter.

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• If not as specified, repair the supply pump. (See SUPPLY PUMP INSPECTION [MZR-CD 2.2].)