Wiring to Mass Air Flow (MAF) Sensor -G70-, Checking

Wiring To Mass Air Flow (MAF) Sensor -G70-, Checking

NOTE: The signal wire is also checked during the wiring check.

- Connect test box V.A.G 1598/31 to wiring harness for Engine Control Module (ECM); do not connect Engine Control Module (ECM). Wiring and Component Testing Using VAG1598/31 Test Box







- Check for open circuit, short to positive, or short to ground (GND) in following wiring connections:

Connector terminal Test for VAG 1598/31 Socket

3 27
4 53
5 29

- Repair any open/short circuit as necessary.
- Additionally check all wires for short to one another.

If the wiring is OK:
- Replace Mass Air Flow (MAF) sensor -G70-.