TT L4-1.8L Turbo (BEA) (2004)
Main Relay (Computer/Fuel System): Testing and Inspection
With Manufacturer's Scan Tool
Motronic Engine Control Module (ECM) Power Supply Relay -J271-, Checking
Special tools and equipment
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V.A.G 1526 A
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V.A.G 1594 A
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V.A.G 1598/31
NOTE: The Motronic Engine Control Module (ECM) Power Supply Relay -J271- supplies ignition coils with output stages as well as ECM on Pin 121
with power.
Test sequence
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Remove engine cover -arrows-.