S4 Quattro Wagon V8-4.2L (BHF) (2008)
connector terminal
T121 terminal or test box socket
2
115
Camshaft Adjustment Valve 2
Motronic Engine Control Module
(exhaust) N208 electrical
(ECM) electrical harness connector
harness connector terminal
T121 terminal or test box socket
2
120
Specified value: 1.5 Ohms Max.
If the specified value was not obtained:
-
Check the wiring connection for an open circuit, short circuit to Battery (+) or Ground (GND).
-
Check the wiring connection for damage, corrosion, lose or broken terminals.
-
If necessary, repair the faulty wiring connection.
If no malfunction is found in the wiring and voltage supply was not OK:
-
Replace the Motronic Engine Control Module (ECM) J623.
-
Install the engine cover with air filter.
Final procedures
After repair work, the following work steps must be performed in the following sequence:
1. Check the DTC memory. See: Powertrain Management/Computers and Control Systems/Testing and Inspection/Scan Tool Testing and
Procedures/Diagnostic Mode 03 - Read DTC Memory
2. If necessary, erase the DTC memory. See: Powertrain Management/Computers and Control Systems/Testing and Inspection/Scan Tool Testing
and Procedures/Diagnostic Mode 04 - Erase DTC Memory
3. If the DTC memory was erased, generate readiness code. See: Powertrain Management/Computers and Control Systems/Testing and
Inspection/Monitors, Trips, Drive Cycles and Readiness Codes
End of diagnosis.