Checking Hall sender: VW Passat B5 2.3 (AZX)
Step-by-step checking Hall sender for the VW Passat B5 2.3 (AZX): 19 steps. What to remove, in what order, and what to check after.
Workshop procedure for VW — the exact step sequence and torque figures, straight from real workshop data.
🧭 Before you start
Fits: VW Passat B5 (3B)
- Special tools named: V.A.G 1594, V.A.G 1598/31
- Renewed: engine control unit
🔧 Engine codes this applies to
📋 Procedure
- Pull 3-pin connector off Hall sender G40 (1).
- Connect multimeter to measure voltage with test leads from V.A.G 1594 to contacts 1 (positive) and 3 (earth) on the Hall sender connector.
- Switch on ignition.
- Switch off ignition.
- Connect test box V.A.G 1598/31 to control unit wiring harness. The engine control unit remains disconnected.
- Check wiring between test box and connector for open circuit referring to current flow diagram.
- Additionally check wires for short to one another.
- Renew Hall sender G40
- Read fault memory, if necessary, repair any faults and then clear fault memory , Reading and clearing fault memory.
- Pull 3-pin connector off Hall sender G163 (2).
- Connect multimeter to measure voltage with test leads from V.A.G 1594 to contacts 1 (positive) and 3 (earth) on the Hall sender connector.
- Switch on ignition.
- Switch off ignition.
- Connect test box V.A.G 1598/31 to control unit wiring harness. The engine control unit remains disconnected.
- Check wiring between test box and connector for open circuit referring to current flow diagram.
- Additionally check wires for short to one another.
- Renew Hall sender G163.
- Read fault memory, if necessary, repair any faults and then clear fault memory , Reading and clearing fault memory.
- Renew engine control unit .
Other VW procedures
- Checking control unit voltage supply – VW Passat B5 2.3 AZX
- Connecting the fault reader
- Checking speed signal – VW Passat B5
- Test solenoid valve 1 for activated charcoal filter
- Checking intake system for leaks (unmetered air) – VW 2.3 AZX
- Removing engine · 41 torque figures
- Removing and installing camshaft – VW Golf Cabriolet · 47 torque figures
- Adjusting valve timing – VW Passat B5 · 83 torque figures
- Removing and installing camshafts – VW Passat B6 · 39 torque figures
- Removing and installing coolant pump · 53 torque figures
Who makes these pages, and how
TorqFix was built by a mechanic — after a 2,700 km drive with five roadside repairs that no diagnostic tool could explain.
The figures on this page come from manufacturer workshop documentation and are shown as they are. The page is assembled automatically from that data — it is not written by an AI. The AI works in the chat, where it answers for your specific car. It writes nothing here.
Variants of the same model differ. Cross-check torque against the factory manual for your engine before final tightening.
Seen a figure that does not match your manual? Write to us — we correct it and note when. support@torqfix.com
The story behind TorqFix →Workshop data on this page last updated 20 Sep 2026.