A6 Quattro Sedan V8-4.2L (BVJ) (2007)
Checking internal resistance
-
Using a multimeter, check the Engine Speed (RPM) Sensor (G28) terminals 1 to 2 for resistance.
Specified value: 0.7 to 1000 kOhm
Specified value: infinite (infinity)
If any of the specified values are not obtained:
-
Replace the Engine Speed (RPM) Sensor (G28) => Fuel Injection and Ignition 24 Description and Operation.
If the specified values are obtained:
Checking wiring
If the manufacturers test box is being used. Perform the following step.
-
Install the test box.
If the manufacturers test box is not being used. Perform the following step.
-
Remove the Motronic Engine Control Module (ECM) (J623). Refer to => [ Engine Control Module, Removing and Installing ] See: Engine
Control Module/Service and Repair/Engine Control Module.
-
Using a Multimeter, check the Engine Speed (RPM) Sensor (G28) electrical harness connector terminals to the Motronic Engine Control Module
(ECM) (J623) electrical harness connector T60a terminals for an open circuit.