Passat Syncro Wagon V6-2.8L (ATQ) (2000)
-
Connect VAG 1598/31 test box to control module wiring harness. Engine Control Module (ECM) is not connected.
-
Check for breaks in wires between test box and 3-way connector (see wiring diagram).
-G61-: -G66-:
Terminal 2 + socket
106
107
Terminal 2 + socket
99
99
Terminal 3 socket
108
108
Wire resistance: max. 1.5 Ohms
-
Also test lines at socket 108 for shorts to sockets 106 and 107.
Expected value: infinity Ohms
If no malfunctions are found in wires:
-
Loosen Knock Sensor (KS) and then retighten it to 20 Nm.
-
Perform a road test.
The following operating conditions must be obtained during road test:
-
Coolant temperature must rise to above 80 °C.
-
Once the temperature is reached, the following conditions
Idle
Partial throttle
Wide Open Throttle (WOT)
Deceleration mode
must be reached several times each.
-
Engine speed must be increased to above 3500 RPM during Wide Open Throttle (WOT).
-
Check control module DTC memory again.
If it continues to complain: