Audi AMB Service Manual page 248

ENGINE 1.8 Liter 4-Cyl. 5V Turbo Engine Mechanical, Engine Code(s): AMB
Fig. 324: Identifying Connector Terminals 1 And 4
Courtesy of VOLKSWAGEN UNITED STATES, INC.
Check for open circuit and short to Ground/positive in following wiring connection:

Connector contact
4
If necessary, eliminate open circuit/short circuit.

If wiring is OK:
Replace Charge air pressure sensor G31.

CHARGE AIR SYSTEM WITH TURBOCHARGER, SERVICING
Rules of cleanliness
When working on turbocharger, pay careful attention to the following 5 rules:
Carefully clean all joints and adjacent areas before disconnecting.

Place parts removed on a clean surface and cover them over. Do not use fluffy cloths.

Carefully cover or seal opened components if repairs are not to be performed immediately.

Only install clean components: Do not remove replacement parts from wrapping until immediately prior

to installation. Do not use parts that have been stored loose (e.g. in tool boxes).
When system is open: Do not work with compressed air if at all possible. Do not move vehicle unless

absolutely necessary.
Turbocharger, removing and installing - overview
Part I
2005 Audi A4 Quattro
Test box VAG1598/31 socket
101
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