Work Sequence Steps 1- 4
Work Sequence
- Connect VAG 1551 scan tool ((VAG 1552). Then switch ignition on and select Motronic Engine Control Module (ECM) -J220- with the "Address word" 01 (Connecting scan tool and selecting Engine Control Module (ECM). [1][2][3]Connecting VAG 1551 Scan Tool
Indicated on display:
Rapid data transfer HELP
Select function XX
- Operate scan tool taking into account the information on the display:
- Press buttons -0- and -3- for the function "Output Diagnosis Test Mode (DTM)".
Indicated on display:
Rapid data transfer Q
03-Output Diagnosis Test Mode
1. Activating Evaporative Emission (EVAP) Canister Purge control Valve -N80-:
- Confirm input with -Q- button.
Indicated on display:
Output Diagnosis Test Mode ->
Fuel Evaporative Emission (EVAP) Canister Purge control Valve
The Evaporative Emission (EVAP) Canister Purge control Valve -N80- must click until the next final control element is activated by pressing button.
The valve clicks but a malfunction is still suspected (valve does not open or close):
- Pull off hose from EVAP canister at solenoid valve.
- Connect an auxiliary hose to the vacant valve connection.
- Blow into adapter hose during Output Diagnosis Test Mode (DTM) (in direction of intake manifold).
- Valve must open and close
If the solenoid valve does not click:
- Pull 2-pin connector off Evaporative Emission (EVAP) Canister Purge control Valve -N80- -arrow-.
- 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 Evaporative Emission (EVAP) Canister Purge control Valve -N80-.
- 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 64 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 Fuel Pump (FP) relay -J17- referring to Electrical Wiring Diagrams.
Wire resistance: max. 1.5 ohms
If no wiring malfunction is 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
2. Activating Secondary Air Injection (AIR) Solenoid Valve -N112-:
- Press the -> button.
Indicated on display:
Output Diagnosis Test Mode (DTM) ->
Secondary Air Injection Solenoid Valve
The Secondary Air Injection (AIR) Solenoid Valve must click, until the next final control element is activated by pressing button.
If the valve does not click:
- Pull 2-pin connector off Secondary Air Injection (AIR) Solenoid Valve -arrow-.
- 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 Secondary Air Injection (AIR) Solenoid Valve -N112-:
- 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 VAG 1598/31 test box to control module wiring harness. The Motronic Engine Control Module (ECM) -J220- remains disconnected.
- Check wire for open circuit between test box socket 44 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 Fuel Pump (FP) relay -J17- referring to Electrical Wiring Diagrams.
Wire resistance: max. 1.5 ohms
If no wiring malfunction is 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
3. Activating Secondary Air Injection (AIR) Pump Relay -J299-:
- Press the -> button.
Indicated on display:
Output Diagnosis Test Mode (DTM) ->
Secondary Air Injection (AIR) Pump Relay -J299-
The Secondary Air Injection (AIR) Pump Relay -J299- activates the Secondary Air Injection (AIR) Pump Motor -V101-, and this must run at intervals until the next control element is activated by pressing the button.
If the Secondary Air Injection (AIR) Pump Motor -V101- does not run at intervals:
- Remove center insulation tray:
- Pull 2-pin connector off Secondary Air Injection (AIR) Pump Motor -arrow-.
- Connect LED test light VAG 1527 to detached connector using adapter cables from VAG 1594.
- The LED must flash
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 Secondary Air Injection (AIR) Pump Motor -V101-:
- 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 the LED does not flash but the Secondary Air Injection (AIR) Pump Relay clicks:
- 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 wire for open circuit between Secondary Air Injection (AIR) pump motor -V101- terminal 1 and body ground (GND).
- Wire resistance: max. 1.5 ohms
If no electrical or wiring concerns are found:
- Pull Secondary Air Injection (AIR) Pump Relay -1- out of relay carrier in protective housing for control modules.
NOTE:
- If tools are necessary to pull relays or control modules out of the relay plate, first disconnect battery ground (GND) strap.
- Before disconnecting battery ground (GND) strap obtain code for radios with anti-theft coding.
- Check wiring for open circuit between connector terminal 2 on Secondary Air Injection (AIR) Pump Motor and terminal 2 on relay plate.
- Wire resistance: max. 1.5 ohms
If no electrical or wiring concerns are found:
- Check wire for open circuit between terminal 1 of relay plate and fuel pump (FP) relay -J17- referring to Electrical Wiring Diagrams.
- Wire resistance: max. 1.5 ohms
If no electrical or wiring concerns are found:
- Replace Secondary Air Injection (AIR) pump relay -J299-.
- 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 the LED does not flash and the Secondary Air Injection (AIR) Pump Relay 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.
- Pull Secondary Air Injection (AIR) Pump Relay -1- out of relay carrier in protective housing for control modules.
NOTE:
- If tools are necessary to pull relays or control modules out of the relay plate, first disconnect battery ground (GND) strap.
- Before disconnecting battery ground (GND) strap obtain code for radios with anti-theft coding.
- Connect LED test light VAG 1527 to terminals 2 and 4 on relay plate using adapter cables from VAG 1594.
- Initiate Output Diagnosis Test Mode (DTM) again and activate Secondary Air Injection (AIR) pump relay -J299-.
The LED must flash.
NOTE: Run engine briefly first if there is a requirement to repeat Output Diagnosis Test Mode (DTM).
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 Secondary Air Injection (AIR) pump relay -J299-.
- 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.
- Connect LED test light VAG 1527 to terminal 1 of relay plate and body ground (GND) using adapter cables from VAG 1594.
- The LED must light up
LED does not light-up:
- Check wire for open circuit between terminal 1 of relay plate and fuel pump relay -J17- referring to Electrical Wiring Diagrams.
Wire resistance: max. 1.5 ohms
LED lights up:
- 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 46 and terminal 4 on relay plate 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
4. Activating Intake Manifold Change-Over Valve -N156-:
- Press the -> button.
Indicated on display:
Output Diagnosis Test Mode ->
Intake Manifold Change-Over Valve -N156-
The Intake Manifold Change-Over Valve must click until the next final control element is activated by pressing button.
NOTE: If there is sufficient vacuum the Intake Manifold Change-Over Valve -N156- activates the intake manifold change-over valve actuator. The change-over valve is located below the intake manifold, on right next to the Secondary Air Injection (AIR) Solenoid Valve. Checking variable intake manifold change-over. Refer to Fuel Delivery and Air Induction/Variable Induction System/Variable Induction Control Valve. Testing and Inspection
If the valve does not click:
- Pull 2-pin connector off Intake Manifold Change-Over Valve -N156- -arrow-.
- 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 Intake Manifold Change-Over Valve -N156-, item 2.
- 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 121 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