TT Quattro Coupe L4-1.8L Turbo (AWP) (2001)
If the display does not change:
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Replace pressure switch/power steering -F88-.
If the display changes:
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Test the wiring.
Testing wiring
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Connect test box VAG 1598/31 to wiring harness for engine control module. Do not connect to the engine control module itself. See: Powertrain
Management/Computers and Control Systems/Testing and Inspection/Scan Tool Testing and Procedures/Scan Tool Testing/With Manufacturer's
Scan Tool/Scan Tool Connecting and Initial Checks/Wiring and Component Testing Using VAG1598/31 Test Box
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Test for open circuit and short to positive or Ground in the following wiring connections:
Connector
Test box VAG 1598/31
Contact
Socket
1
49
2
50
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Correct short circuit or open circuit if necessary.