Work Sequence Steps 5 - 14
5. Activating Valve -1- for camshaft adjustment -N205-:
- Press the -> button.
Indicated on display:
Output Diagnosis Test Mode Valve -1- for camshaft adjustment -N205-
The Valve -1- for camshaft adjustment must click until the next final control element is activated by pressing button.
NOTE: The Valve -1- for camshaft adjustment -N205- barely audible when operating.
If the valve does not click:
- Pull 2-pin connector off Valve -1- for camshaft adjustment -N205- -1-.
NOTE: Mark connector and component before pulling connector off.
- Connect LED test light VAG 1527 to detached connector using adapter cables from VAG 1594.
- The LED must flash (bright/darker)
LED flashes:
- Press the -C- button to abort the Output Diagnosis Test Mode (DTM).
Indicated on display:
Output Diagnosis Test Mode was aborted
- Switch off ignition.
- Replace control housing:
NOTE: The control housing is only replaced complete with Valve -1- for camshaft adjustment -N205- and Camshaft Adjustment Valve 1 (exhaust) -N318-.
- Check DTC memory, repair Diagnostic Trouble Codes (DTCs) if necessary and then erase DTC memory, DTC memory, checking and erasing. Reading Diagnostic Trouble Codes
- Read readiness code. If the DTC memory has been erased or the Motronic Engine Control Module (ECM) -J220- was disconnected from battery (B+) positive, the readiness code must be generated again. Monitors, Trips, Drive Cycles and Readiness Codes Monitors, Trips, Drive Cycles and Readiness Codes
LED does not flash:
- Press the -C- button to abort the Output Diagnosis Test Mode (DTM).
Indicated on display:
Output Diagnosis Test Mode was aborted
- Switch off ignition.
- Remove wiper arms and cowl panel:
- Connect test box VAG 1598/31 to control module wiring harness. The Motronic Engine Control Module (ECM) -J220- remains disconnected.
- Check wire for open circuit between test box socket 115 and 2-pin connector terminal 2 referring to Electrical Wiring Diagrams.
Wire resistance: max. 1.5 ohms
- Additionally check wire for short to battery positive and ground (GND).
- Specification: infinity ohms
- Check wire for open circuit between 2-pin connector terminal 1 and Motronic Engine Control Module (ECM) Power Supply Relay -J271-referring to Electrical Wiring Diagrams.
Wire resistance: max. 1.5 ohms
If no electrical or wiring concerns are found:
- Replace Motronic Engine Control Module (ECM) -J220-.
- Check DTC memory, repair Diagnostic Trouble Codes (DTCs) if necessary and then erase DTC memory, DTC memory, checking and erasing. Reading Diagnostic Trouble Codes
- Erase learned values and adapt Motronic Engine Control Module (ECM) -J220- again.
- Read readiness code. If the DTC memory has been erased or the Motronic Engine Control Module (ECM) -J220- was disconnected from battery (B+) positive, the readiness code must be generated again. Monitors, Trips, Drive Cycles and Readiness Codes Monitors, Trips, Drive Cycles and Readiness Codes
6. Activating Leak detection pump (LDP) -V144-:
- Press the -> button.
Indicated on display:
Output Diagnosis Test Mode ->
Leak Detection Pump tank ventilation system
The Leak detection pump (LDP) must click, at intervals, until the next final control element is activated by pressing button.
If the Leak detection pump (LDP) -V144- does not run at intervals:
- Remove the rear right wheel housing liner:
- Pull 3-pin connector off Leak detection pump (LDP) -V144- -arrow-.
- Connect LED test light VAG 1527 terminals 2 and 3 of detached connector using adapter cables from VAG 1594.
The LED must flash (bright/darker)
LED flashes:
- Press the -C- button to abort the Output Diagnosis Test Mode (DTM).
Indicated on display:
Output Diagnosis Test Mode was aborted
- Switch off ignition.
- Replace Leak detection pump (LDP) -V144-:
- Check DTC memory, repair Diagnostic Trouble Codes (DTCs) if necessary and then erase DTC memory, DTC memory, checking and erasing. Reading Diagnostic Trouble Codes
- Read readiness code. If the DTC memory has been erased or the Motronic Engine Control Module (ECM) -J220- was disconnected from battery (B+) positive, the readiness code must be generated again. Monitors, Trips, Drive Cycles and Readiness Codes Monitors, Trips, Drive Cycles and Readiness Codes
LED does not flash:
- Press the -C- button to abort the Output Diagnosis Test Mode (DTM).
Indicated on display:
Output Diagnosis Test Mode was aborted
- Switch off ignition.
- Remove wiper arms and cowl panel:
- Connect test box VAG 1598/31 to control module wiring harness. The Motronic Engine Control Module (ECM) -J220- remains disconnected.
- Check wiring for open circuit between test box and 3-pin connector referring to Electrical Wiring Diagrams
Terminal 1 and socket 80
Terminal 2 and socket 25
Wire resistance: max. 1.5 ohms
- Additionally check wire for short to battery positive and ground (GND).
Specification: infinity ohms
- Check wire for open circuit between 3-pin connector terminal 3 and fuel pump relay -J17- referring to Electrical Wiring Diagrams.
Wire resistance: max. 1.5 ohms
If no electrical or wiring concerns are found:
- Replace Motronic Engine Control Module (ECM) -J220-.
- Check DTC memory, repair Diagnostic Trouble Codes (DTCs) if necessary and then erase DTC memory, DTC memory, checking and erasing. Reading Diagnostic Trouble Codes
- Erase learned values and adapt Motronic Engine Control Module (ECM) -J220- again.
- Read readiness code. If the DTC memory has been erased or the Motronic Engine Control Module (ECM) -J220- was disconnected from battery (B+) positive, the readiness code must be generated again. Monitors, Trips, Drive Cycles and Readiness Codes Monitors, Trips, Drive Cycles and Readiness Codes
7. Activating Camshaft Adjustment Valve 1 (exhaust) -N318-:
- Press the -> button.
Indicated on display of VAG 1551 scan tool or VAG 1552:
Output Diagnosis Test Mode ->
17457 / Literature
or
Indicated on display of VAS 5051
Output Diagnosis Test Mode ->
Camshaft Adjustment Valve 1 -N318-
- Press the -> button.
The Camshaft Adjustment Valve 1 (exhaust) must click until the next Output Diagnostic Test element is activated by pressing button.
NOTE: The Camshaft Adjustment Valve 1 (exhaust) is barely audible when operating.
If the valve does not click:
- Pull 2-pin connector off Camshaft Adjustment Valve 1 (exhaust) -N318-2-.
NOTE: Mark connector and component before pulling connector off.
- Connect LED test light VAG 1527 to detached connector using adapter cables from VAG 1594.
- The LED must flash (bright/darker)
LED flashes:
- Press the -C- button to abort the Output Diagnosis Test Mode (DTM).
Indicated on display:
Output Diagnosis Test Mode was aborted
- Switch off ignition.
- Replace engine control housing:
NOTE: The control housing is only replaced complete with inlet camshaft timing adjuster valve -1- -N205- and Camshaft Adjustment Valve 1 (exhaust) -N318-.
- Check DTC memory, repair Diagnostic Trouble Codes (DTCs) if necessary and then erase DTC memory, DTC memory, checking and erasing. Reading Diagnostic Trouble Codes
- Read readiness code. If the DTC memory has been erased or the Motronic Engine Control Module (ECM) -J220- was disconnected from battery (B+) positive, the readiness code must be generated again. Monitors, Trips, Drive Cycles and Readiness Codes Monitors, Trips, Drive Cycles and Readiness Codes
LED does not flash:
- Press the -C- button to abort the Output Diagnosis Test Mode (DTM).
Indicated on display:
Output Diagnosis Test Mode was aborted
- Switch off ignition.
- Remove wiper arms and cowl panel:
- Connect test box VAG 1598/31 to control module wiring harness. The Motronic Engine Control Module (ECM) -J220- remains disconnected.
- Check wire for open circuit between test box socket 120 and 2-pin connector terminal 2 referring to Electrical Wiring Diagrams.
Wire resistance: max. 1.5 ohms
- Additionally check wire for short to battery positive and ground (GND).
Specification: infinity ohms
- Check wire for open circuit between 2-pin connector terminal 1 and Motronic Engine Control Module (ECM) Power Supply Relay -J271-referring to Electrical Wiring Diagrams.
Wire resistance: max. 1.5 ohms
If no electrical or wiring concerns are found:
- Replace Motronic Engine Control Module (ECM) -J220-.
- Check DTC memory, repair Diagnostic Trouble Codes (DTCs) if necessary and then erase DTC memory, DTC memory, checking and erasing. Reading Diagnostic Trouble Codes
- Erase learned values and adapt (match) Motronic Engine Control Module (ECM) -J220-again.
- Read readiness code. If the DTC memory has been erased or the Motronic Engine Control Module (ECM) -J220- was disconnected from battery (B+) positive, the readiness code must be generated again. Monitors, Trips, Drive Cycles and Readiness Codes Monitors, Trips, Drive Cycles and Readiness Codes
8. Activating Brake System Vacuum Pump -V192- (only vehicles with an automatic transmission):
- Press the -> button.
Indicated on display of VAG 1551 scan tool or VAG 1552:
Output Diagnosis Test Mode ->
17836 / Literature
or Indicated on display of VAS 5051:
Output Diagnosis Test Mode ->
Brake System Vacuum Pump activation
The Brake Booster Control Module -J542- activates the Brake System Vacuum Pump -V192-, and this must run until the next control element is activated by pressing the button.
If the Brake System Vacuum Pump -V192- does not run:
- Press the -C- button to abort the Output Diagnosis Test Mode (DTM).
Indicated on display:
Output Diagnosis Test Mode was aborted
- Switch off ignition.
- Check Brake System Vacuum Pump -V192-:
- Check DTC memory, repair Diagnostic Trouble Codes (DTCs) if necessary and then erase DTC memory, DTC memory, checking and erasing. Reading Diagnostic Trouble Codes
- Read readiness code. If the DTC memory has been erased or the Motronic Engine Control Module (ECM) -J220- was disconnected from battery (B+) positive, the readiness code must be generated again. Monitors, Trips, Drive Cycles and Readiness Codes Monitors, Trips, Drive Cycles and Readiness Codes
9...14. Activating fuel injectors (-N30-... -N33-, -N83- and -N84-):
- Press the -> button.
Indicated on display:
Output Diagnosis Test Mode ->
Cylinder 1 Fuel Injector -N30-
- Press the button again so that the fuel injector is actuated five times.
Cylinder 1 Fuel Injector -N30- clicks five times.
NOTE: The fuel pump must run and the sound of fuel flowing through the fuel pressure control must be heard clearly.
If the fuel pump does not run:
- Check fuel pump function and voltage supply:
Fuel pump runs:
- To activate fuel injectors for cyl. 2 to 6, use procedure, as for fuel injector 1, to activate each subsequent fuel injector.
Using this procedure, each fuel injector can be checked one after the other according to firing order.
If one of the fuel injectors is not activated (does not click):
- Press the -C- button to abort the Output Diagnosis Test Mode (DTM).
Indicated on display:
Output Diagnosis Test Mode was aborted
- Switch off ignition.
- Check injectors. Refer to "Fuel Delivery and Air Induction/Fuel Injector" Testing and Inspection
- Check DTC memory, repair Diagnostic Trouble Codes (DTCs) if necessary and then erase DTC memory, DTC memory, checking and erasing. Reading Diagnostic Trouble Codes
- Read readiness code. If the DTC memory has been erased or the Motronic Engine Control Module (ECM) -J220- was disconnected from battery (B+) positive, the readiness code must be generated again. Monitors, Trips, Drive Cycles and Readiness Codes Monitors, Trips, Drive Cycles and Readiness Codes
If all fuel injectors have been activated (clicks):
- Press the -> button.
Indicated on display:
Output Diagnosis Test Mode ->
END
- Press buttons -0- and -6- for the function "End output" and confirm entry with the -Q- button.
- Switch off ignition.