TTS Quattro Roadster L4-2.0L Turbo (CDMA) (2009)
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).
-
Using a multimeter, check the Throttle Valve Control Module (J338) electrical harness connector terminals to the Motronic Engine Control
Module (ECM) (J623) electrical harness connector T60 terminals for an open circuit according to the wiring diagram.
Specified value: 1.5 ohms max.
If the specification is not obtained:
-
Check the wiring for a short circuit to Battery (+), or an open circuit.
-
If necessary, repair the faulty wiring connection.
-
Check the electrical harness connector for damage, corrosion, loose or broken terminals.
If no malfunction is detected in the wiring and if the voltage supply was not OK:
-
Replace the Motronic Engine Control Module (ECM) (J623).
Final procedures
After the repair work, the following work steps must be performed in the following sequence:
1. Check the DTC memory. Refer to => [ Diagnostic Mode 03 - Read DTC Memory ] See: Testing and Inspection/Scan Tool Testing and
Procedures/Diagnostic Modes 01 - 09.
2. If necessary, erase the DTC memory. Refer to => [ Diagnostic Mode 04 - Erase DTC Memory ] See: Testing and Inspection/Scan Tool Testing
and Procedures/Diagnostic Modes 01 - 09.
3. If the DTC memory was erased, generate readiness code. Refer to => [ Readiness Code ] See: Testing and Inspection/Monitors, Trips, Drive