Passat Sedan 4Motion W8-4.0L (BDP) (2002)
Checking resistances
-
Measure resistance between terminals 1 + 2, 1 + 3 and 2 + 3 at the connections to the respective knock sensors.
Specified value: Infinity Ohms
If specified value is not obtained:
-
Replace the respective knock sensor:
-
Knock Sensor (KS) 1 -G61- or Knock Sensor (KS) 2 -G66-, Fig. 2
-
Knock sensor 3 -G198-, Fig. 3
-
Knock sensor 4 -G199-, Fig. 4
-
Erase DTC memory of Engine Control Module (ECM), Diagnostic mode 4: Reset/erase diagnostic data.
-
Generate readiness code. See: Computers and Control Systems/Testing and Inspection/Monitors, Trips, Drive Cycles and Readiness Codes
If specified value is obtained:
Checking wiring
-
Connect test box to control module wiring harness, connect test box for wiring test. See: Computers and Control Systems/Testing and
Inspection/Reading and Clearing Diagnostic Trouble Codes/Scan Tool Connecting/With Generic Scan Tool/Test Box, Connecting For Wiring
Test
-
Check wires between test box and 3-pin connector to Engine Control Module (ECM) for open circuit according to wiring diagram.
Wire resistance: max. 1.5 Ohms
Cylinder bank 1