A4 Cabriolet L4-1.8L Turbo (AMB) (2005)
-
Connect multimeter as follows to measure voltage:
Connector
Measure to
terminal
2
Engine Ground (GND)
-
Switch ignition on.
Specified value: approx. battery voltage (B+)
Checking Ground (GND) wire
-
Check for open circuit, short to positive, or short to ground in following wiring connections:
Connector
Measure to
terminal
3
Engine Ground (GND)
-
Repair any open/short circuit as necessary.
If the specified values are all achieved and the LED voltage tester does not flash (measured between terminals 1 and 2 with starter connector attached),
-
Install a new Camshaft Position (CMP) sensor -G40-..
If specified values are not obtained:
Checking wiring between Camshaft Position (CMP) sensor -G40- and ECM
-
Connect test box V.A.G 1598/31 to wiring harness for ECM; do not connect directly to ECM. See: Powertrain Management/Computers and
Control Systems/Testing and Inspection/Scan Tool Testing and Procedures/Scan Tool Testing/With Generic Scan Tool/Scan Tool
Connecting/Test Box, Connecting For Wiring and Component Test