Passat GLS Wagon L4-1.8L Turbo (AUG) (2001)
Checking oxygen sensor wires
-
Disconnect 6-pin harness connector (black) to Heated Oxygen Sensor (HO2S) - G39- (item no.1).
-
Check wires between test box and 6- pin connector (to control module) for open circuit according to wiring diagram.
Terminal 1 + socket 70
Terminal 2 + socket 71
Terminal 4 + socket OS
Terminal 5 + socket 51
Terminal 6 + socket 52
Wire resistance: max: 1.5 Ohms
-
Also check all wires for short circuit to each other. Specification: Infinity Ohms
If no malfunctions are found in wires:
-
Replace Heated Oxygen Sensor (HO2S) -G39-.
Heater Check
Oxygen Sensor Heater For Heated Oxygen Sensor (HO2S) -G39-, Checking
Special tools and equipment
-
V.A.G 1551 scan tool (or VAG 1552 mobile scan tool) with VAG 1551/3B cable
-
VAG 1598/31 adapter cable
-
VAG 1526 multimeter or VAG 1715 multimeter
-
VAG 1594 connector test kit