S4 V8-4.2L (BHF) (2004)
![background image](/audi/s4/v8-4.2l_(bhf)/Page-1726002.png)
If specified value is obtained:
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Disconnect test box from Engine Control Module (ECM).
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Connect test box to control module wiring harness.
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Check CAN data bus wires for shorts among one another.
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Connect multimeter between terminal 58 and 60 of test box for resistance measurement.
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Specified value: Infinite Ohms (no continuity)
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If necessary, repair wire connection according to wiring diagram.