S6 V8-4.2L (BBD) (2004)
Variable Valve Timing Actuator: Testing and Inspection
With Generic Scan Tool
Solenoid Valves For Camshaft Adjustment, Checking
Recommended special tools and equipment
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VAG1526A hand multimeter
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V.A.G 1527 B Voltage Tester
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VAG1594A connector test kit
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VAG1598/31 test box
Test requirements:
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Fuse for solenoid valves for camshaft adjustment OK.
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Fuel Pump (FP) Relay OK. See: Testing and Inspection/Component Tests and General Diagnostics/Fuel Pump (FP) Relay -J17 and Relay
Activation, Checking
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Motronic Engine Control Module (ECM) Power Supply Relay -J271- OK.
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Ignition switched off.
NOTE:
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In vehicles without Motronic Engine Control Module (ECM) Power Supply Relay -J271-, voltage is supplied to camshaft adjustment solenoid
valves via the Fuel Pump (FP) relay.
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In vehicles with Motronic Engine Control Module (ECM) Power Supply Relay -J271-, voltage is supplied to camshaft adjustment solenoid valves
via -J271-.
Work procedure
Cylinder bank 1 (right):