Audi AMB - Page 166

Fi
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. 227: Identif
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in
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Special Tools - Camshaft Ad
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ustment Valve, Checkin
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Courtesy of VOLKSWAGEN UNITED STATES, INC.
Special tools, testers and auxiliary items required
 Multimeter VAG1526A
 Voltage tester VAG1527B
 Connector test kit VAG1594A
 Adapter VAG1598/31
Requirement
 Vehicle diagnostic, testing and information system VAS5051 or scan tool VAG1551 must be connected.
Work sequence
 Start output Diagnostic Test Mode and activate camshaft adjustment valve.
Indicated on display
 This valve is actuated (clicks) for approx. 1 minute if --> key is not pressed beforehand to select next
control element.
If valve is not actuated (does not click):
 Check internal resistance of valve.
Checking internal resistance
 Switch off ignition.
Fig. 228: Disconnecting Connector At Camshaft Adjuster
Output Diagnostic Test Mode -->
Camshaft timing control
2005 Audi A4 Quattro
ENGINE 1.8 Liter 4-Cyl. 5V Turbo Engine Mechanical, Engine Code(s): AMB
1:01:07 AM Page 154
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