A8 Quattro Sedan V8-4.2L (BGK) (2006)
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Operate starter for a few seconds. Engine may also start up during this.
LED must light up.
If diode test lamp does not light up, the following tests must be performed:
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Check fuse for solenoid valves for camshaft adjustment.
If fuse is OK.
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Check wire connection from terminal 1 to Fuel Pump (FP) relay via fuse for continuity.
If voltage test lamp lights up, check activation.
Activation of Valves for Camshaft Adjustment, Checking