Wire and component test using VAG1598/31 test box

NOTE:

• Always use VAG1594A connector test kit to attach measurement devices (e.g. VAG1527B voltage tester, VAG1526 multimeter etc.).
• The terminal numbers on the connector correspond socket numbers on the test box.

CAUTION: To avoid damaging electronic components, set measuring range before connecting test leads and observe all test requirements.

• Switch ignition off.
• Pull off rubber seal of plenum chamber cover in direct arrow.
• Remove cover -1- toward front.
Fig 1: Pulling Off Rubber Seal Of Plenum Chamber Cover
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• Remove E-box cover (arrows).
Fig 2: Removing E-Box Cover
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• Using a screwdriver, carefully pry off retaining bracket (arrow).
Fig 3: Prying Off Retaining Bracket Using Screwdriver
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• Disengage connector catches (arrows) and disconnect harness connectors -1- and -2- from control module.
Fig 4: Disengaging Connector Catches & Disconnecting ECM Harness Connectors
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• Connect VAG1598/31 test box to disconnected harness connector of Engine Control Module (ECM) (control module remains free). Ground (GND) clip at test box (not visible in illustration) must be connected to Ground (GND).

Fig 5: Connecting VAG1598/31 Test Box To Harness Connector Of Engine Control Module (ECM)

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