Vehicle Diagnostic, Testing and Information System VAS5051 VAS5051 with VAS5051/1
or
Scan Tool VAG1551 with VAG1551/3A
Requirement
Vehicle Diagnostic, Testing and Information System VAS5051 or Scan Tool VAG1551 must be
connected.
Work sequence
Read DTC memory of engine control module.
If display shows a DTC relating to Wastegate bypass regulator valve N75 :
Disconnect hoses from valve; leave connector connected.
Fig. 314: Connecting Test Hose To Valve Connection
Courtesy of VOLKSWAGEN UNITED STATES, INC.
Connect test hose to valve connection marked with -
arrow
-.
Start Output Diagnostic Test Mode and actuate Wastegate bypass regulator valve N75.
Indicated on display
Valve must click...
NOTE:
The Wastegate bypass regulator valve N75 and its wiring are monitored by
the engine control module.
Output Diagnostic Test Mode -->
Wastegate bypass regulator valve -N75
2005 Audi A4 Quattro
ENGINE 1.8 Liter 4-Cyl. 5V Turbo Engine Mechanical, Engine Code(s): AMB
1:01:20 AM
Page 228
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