Passat Syncro Wagon V6-2.8L (ATQ) (2000)
If expected value is not obtained:
-
Check Ground (GND) connection of the appropriate oxygen sensor heater.
-
Switch ignition off.
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Connect VAG1598/31 test box to control module wiring harness. Engine Control Module (ECM) is not connected.
-
Check wire connection of terminal 2 of appropriate connector of Heated Oxygen Sensor (HO2S) for continuity to test box.
Specification: max. 1.5 Ohms
Connector to Heated Oxygen Sensor
VAG 1598/31 test box socket
(HO2S) -G39-, bank 1 before
catalytic converter terminal
2
5
Connector to Heated Oxygen Sensor
VAG 1598/31 test box socket
(HO2S) 2 -G108-, bank 2 before
catalytic converter terminal
2
4
If expected value is not obtained:
-
Switch ignition on.
-
Bridge sockets 2 + 65 of test box using auxiliary wires from VAG 1594. Transfer Fuel Pump (FP) must be running.