Servicing Motronic injection system
Wiring and component check with test box V.A.G 1598/31
Notes:
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◆ The test box V.A.G 1598/31 is designed in such a way that it can be connected simultaneously to the engine control unit wiring harness and to the engine control unit itself.
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◆ This has the advantage that the electronic motor control system remains fully functional when the test box is connected (for example, for measuring signals when the engine is running).
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◆ Whether the engine control unit has to be additionally connected to the test box or not is described in the respective test procedures.
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◆ Always use adapter set V.A.G 1594 A for connecting up measuring instruments (e.g. voltage tester V.A.G 1527 B, hand-held multimeter V.A.G 1526 A etc.)
Important: To prevent damage to the electronic components, select appropriate measuring range before connecting the measuring cables and observe the test requirements.
Special tools and workshop equipment required
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