S4 V8-4.2L (BHF) (2004)
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Check the following wire connection for open circuit according to wiring diagram:
3-fold relay carrier in
Test box Socket
E-box, plenum chamber,
position 3 Terminal
4
23
Specified value: Wire resistance max 1.5 Ohms
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Check the wire for short circuit to B+ and Ground (GND).
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Specified value: Infinite Ohms (no continuity)
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If necessary, repair wire connection.
If no malfunctions are found in wire:
Checking voltage supply
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Connect multimeter for voltage measurement as follows.
3-fold relay carrier in
Measure to
E-box, plenum chamber,
position 3 Terminal
1
Engine Ground (GND)
2
Engine Ground (GND)
Specified value: approx. battery voltage
If specified value is not obtained:
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Check wire connections for open circuit according to wiring diagram.
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Specified value: Wire resistance max 1.5 Ohms
If no malfunctions are found in wires:
Checking wire connection
-
Check the following wire connection for open circuit according to wiring diagram:
3-fold relay carrier in
Test box Socket