Checking charge pressure sender G31 - vehicles with electronic throttle — AUDI

🔧 Engine codes this applies to

📐 53 workshop diagrams for AGU

Real factory drawings for this job — timing marks, bolt locations and routing. Locked in the free view.

📋 Procedure

1. Connect up vehicle diagnostic, testing and information systemVAS 5051 with diagnosis leadVAS 5051/1, press vehicle self-diagnosis key and select vehicle system "“01 - Engine electronics”". When doing this, the engine must be running at idling speed.
2. From list (1), select diagnosis function "“02 - Interrogate fault memory”".
3. Terminate function "“02 - Interrogate fault memory”" by touching ← key.
4. Press function "“06 - End output”".
5. Switch off ignition and detach diagnostic connector.

6. Release catch (1) at turn signal housing with cross-head screwdriver (2) by turning 1/4 turn to left.
7. Reach through opening for turn signal and unplug connector at charge pressure sender G31.
8. Remove washer fluid reservoir 94.
9. Unplug electrical connector at charge pressure sender G31.
10. Connect hand-held multimeterV.A.G 1526 C to measure voltage between contacts (1) and (3) of connector for charge pressure sender G31.
11. Switch on ignition.
12. Connect adapter cableV.A.G 1598/31 (test box) to connectors of wiring harness; do not connect engine control unit. Connect earth clip of test box to earth (arrow)24.
13. ⚠ To prevent damage to electronic components, select appropriate measuring range before connecting measuring leads and observe test requirements. — Check for open circuit and short to positive or earth in the following wiring:
14. Repair wiring connection if necessary.
15. Plug in connector at charge pressure sender G31.
16. Connect hand-held multimeterV.A.G 1526 C (voltage measurement range) between sockets "“101”" and "“108”" on V.A.G 1598/31.
17. Start engine and run at idling speed.
18. Increase engine speed by depressing accelerator pedal briefly.
19. Check for open circuit and short to positive or earth in the following wiring:
20. Repair wiring connection if necessary.
21. Renew charge pressure sender G31.
22. Install washer fluid reservoir 94.

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