Readiness code (function 15), generating: Conditions

• Vehicle stationary
• Battery (B+) voltage at least 11.5 V
• Automatic transmission selector lever in "P" or "N" position
• All electrical consumers (e.g. lights and rear window defroster) switched off

• Coolant temperature must be 5-95 ° C → display group 04, display field 3
• Intake air temperature less than 60 ° C → display group 04, display field 4

• Connect Scan Tool (ST) VAG 1551 (VAG1552), then switch ignition on and select Motronic Engine Control Module (ECM) J220 by pressing buttons - 0  - an - 1  - to insert "Engine Electronics" address word 01 → Scan Tool (ST) VAG 1551 , connecting and selecting functions  .

Step 1: Check DTC memory 

Indicated on display

Rapid data transfer HELP Select function XX

• Press buttons - 0  - and - 2  - to select "Check DTC Memory" function 02 and press - Q  - button to confirm input.

Indicated on display (number of stored DTCs, or "No DTC recognized" ).

X DTC recognized ->

If one or more DTCs are stored, the stored DTCs will be displayed and printed out one after the other.

If a DTC is stored:

• Using DTC table repair malfunctions on print-out:
• Check print-out against DTC table and repair all malfunctions as necessary, VAG codes and SAE P0 codes ( → Diagnostic Trouble Code (DTC) table: SAE P0 codes  ) and SAE P1 codes ( → Diagnostic Trouble Code (DTC) table: SAE P1 codes  ).

If no DTCs are stored:

• Press → button.

Step 2: Erase DTC memory 

Indicated on display

Rapid data transfer HELP Select function XX

• Press buttons - 0  - and - 5  - to select "Erase DTC Memory" function 05, and press - Q  - button to confirm input.

Indicated on display

Rapid data transfer -> DTC Memory is erased

• Press → button.

• Press → button.

Step 3: Adaptation of throttle valve control module to ECM 

Indicated on display

Rapid data transfer HELP Select function XX

• Press buttons - 0  - and -4- to select "Basic Setting" function 04 and press - Q  - button to confirm input.

Indicated on display

Basic Setting Input display group number XXX

• Press buttons - 0  - , - 6  - and - 0  - to input display group 60 - 060  - and press - Q  - button to confirm input.

Indicated on display (1-4 = display fields)

System in Basic Setting 60 -> 1 2 3 4

• Check specified value in display field 3 and 4.

	Display fields
	1	2	3	4
Display group 060: Adaptation of throttle valve control module to ECM
Display	xxx %	xxx %	x	ADP. runs ADP. OK. ERROR
Indicated	Angle sensor - 1  - for throttle drive (power accelerator actuation) G187	Angle sensor - 2  - for throttle drive (power accelerator actuation) G188	Learn step counter	Adaptation condition
Specified value	---	---	Counter counts up to 9 during adaptation	ADP. runs
	---	---	9	ADP. OK. (ERROR appears if adaptation is not successful)
	---	---	If specification are not achieved → Throttle valve control module J338 , checking  , Checking throttle valve control module

• Terminate engine basic setting after minimum of 30 seconds by pressing → button.

Step 4: 

• Start engine and run at idling speed.

Indicated on display * See note

V.A.G - ON BOARD DIAGNOSTIC HELP 1 - Rapid data transfer

V.A.G - ON BOARD DIAGNOSTIC HELP 2 - Blink code output

* Operating modes 1 and 2 are displayed alternately

• Press button - 1  - to select "Rapid data transfer" operating mode 1.
• Press buttons - 0  - and - 1  - to insert "Engine Electronics" address word 01 and press - Q  - button to confirm input.

The control module identification and coding are indicated on the display

021906018B MOTRONIC ME7.1 G V06 -> Coding 00000 WSC 00000

• Press → button.

Step 5: Oxygen sensor O2S aging diagnostic (cycle duration monitor) 

Indicated on display

Rapid data transfer HELP Select function XX

• Press buttons - 0  - and -4- to select "Basic Setting" function 04 and press - Q  - button to confirm input.

Indicated on display

Basic Setting Input display group number XXX

• Press buttons - 0  - , - 3  - and - 4  - to input display group 34 - 034  - and press - Q  - button to confirm input.

Indicated on display (1-4 = display fields)

Read Measuring Value Block 34 -> 1 2 3 4

• Depress brake pedal and hold.

• Check specified value in display fields 1-4.

If the diagnostic is initiated from Motronic Engine Control Module (ECM) J220 the display in display field 4 changes from "Test OFF" to "Test ON."

	Display fields
	1	2	3	4
Display group 034: Oxygen sensor O2S aging, Bank 1 (cycle duration monitor)
Display	xxxx RPM	xxx.x ° C	xx.xx	Test OFF/Test ON B1 P1OK /B1 P1 n.OK
Indicated	Engine speed (in steps of 40)	Three Way Catalytic Converter (TWC) temp.	Cycle duration Bank 1 oxygen sensor 1	Diagnosis condition and result
Working range	0-6800 RPM	---	0.00-1.99	---
Specified value	1350-1450 RPM	---	> 0.80	B1 S1OK.

If the display does not indicate as described:

• Press → button.
• Check DTC memory → Diagnostic Trouble Code (DTC) memory, checking and erasing (scan tool functions 02 and 05)  .

If the specified values are attained:

• Release brake pedal.
• Press - C  - button.

Step 6: Three Way Catalytic Converter (TWC) diagnostic 

Indicated on display

Basic setting Input display group number XXX

• Press buttons - 0  - , - 4  - and - 6  - to input display group number 46 - 046  - and press - Q  - button to confirm input.

Indicated on display (1-4 = display fields)

System in basic setting 46 -> 1 2 3 4

• Depress brake pedal and hold.

• Check catalyst conversion (amplitude ratio) in display field 3: Specification: max. 0.50
• Allow engine to run at increased idle until specification: "Cat B1 OK" is displayed in display field 4.

If the diagnostic is initiated from Motronic Engine Control Module (ECM) J220 the display in display field 4 changes from "Test OFF" to "Test ON."

	Display fields
	1	2	3	4
Display group 046: Three Way Catalytic Converter (TWC), Bank 1 diagnosis
Display	xxxx RPM	xxx.x ° C	x.xx	Test OFF/Test ON Cat B1 OK Cat B1 n.OK
Indicated	Engine speed (in steps of 40)	Three Way Catalytic Converter (TWC) temperature	Catalyst conversion Amplitude ratio	Diagnostic condition and result
Range	0-6800 RPM	---	0.00-1.00	---
Specified value	1350-1450 RPM	400.0 - 650.0 ° C	max. 0.50	Cat B1 OK

If the display does not indicate as described:

• Press → button.
• Check DTC memory → Diagnostic Trouble Code (DTC) memory, checking and erasing (scan tool functions 02 and 05)  .

If the specified values are attained:

• Release brake pedal.
• Press - C  - button.

Step 7: Secondary Air Injection (AIR) system diagnostic 

Indicated on display

Basic Setting Input display group number XXX

• Press buttons - 0  - , - 7  - and - 7  - to input display group number 77 - 077  - and press - Q  - button to confirm input.

Indicated on display (1-4 = display fields)

System in basic setting 77 -> 1 2 3 4

• Allow engine to continue running at idle until "Syst. OK." is displayed in display field 4.

If the diagnostic is initiated from Motronic Engine Control Module (ECM) J220 , the display in display field 4 changes from "Test OFF" to "Test ON."

	Display fields
	1	2	3	4
Display group 077: Secondary Air Injection (AIR) system diagnostic
Display	xxxxx RPM	xxx.x ° C	xx.x g/s	Test OFF/Test ON Syst. OK. Syst. n. OK.
Indicated	Engine speed (in steps of 40)	Coolant temperature	Air mass secondary air system	Diagnosis condition and Diagnosis result
Working range	0-6800 RPM	-40.0 - 140.0 ° C	---	---
Specified value	680-720 RPM	approx. coolant temperature	---	Syst. OK.

If the display does not indicate as described:

• Press → button.
• Check DTC memory → Diagnostic Trouble Code (DTC) memory, checking and erasing (scan tool functions 02 and 05)  .

If the specified values are attained:

• Press - C  - button.

Step 8: EVAP system and fuel tank leak detection 

Indicated on display

Basic setting Input display group number XXX

• Press buttons - 0  - , - 7  - and - 0  - to input display group number 70 - 070  - and press - Q  - button to confirm input.

Indicated on display (1-4 = display fields)

System in basic setting 70 -> 1 2 3 4

• Allow engine to continue running at idle until "EVAP OK." is displayed in display field 4.

If the diagnostic is initiated from Motronic Engine Control Module (ECM) J220 , the display in display field 4 changes from "Test OFF" to "Test ON."

	Display fields
	1	2	3	4
Display group 070: EVAP system and fuel tank leak detection
Display	xxx.x %	xxx.x%	xxx%	Test OFF/Test ON TBV OK. TBV n. OK.
Indicated	Evaporative Emissions (EVAP) canister purge regulator valve N80 opening during diagnostic	Oxygen sensor control, Bank 1	Evaporative Emissions (EVAP) canister purge regulator valve N80 condition	Diagnosis condition and Diagnosis result
Working range	0.0 - 100.0%	-100.0 - 100.0%	0-199%	---
Specified value	---	---	---	EVAP OK.

If the display does not indicate as described:

• Press → button.
• Check DTC memory → Diagnostic Trouble Code (DTC) memory, checking and erasing (scan tool functions 02 and 05)  .

If the specified values are attained:

• Press button - 3  - (VAG1551) or button ↑ (VAG1552).

Indicated on display (1-4 = display fields)

System in basic setting 71 -> 1 2 3 4

• Allow engine to run at idle until specification "Syst. OK." is displayed in display field 4.

If "Reed op." appears:

• Open fuel tank cap briefly to allow pressure in fuel tank to dissipate (this will close reed contact).

If the diagnostic is initiated from Motronic Engine Control Module (ECM) J220 the display in display field 4 changes from "Test OFF" to "Test ON."

	Display fields
	1	2	3	4
Display group 071: Evaporative Emission (EVAP) system fuel tank leak detection diagnostic
Display	Reed open Reed closed		Syst. test Check END	Test OFF/Test ON Syst. OK. Syst. n.OK.
Indicated	Reed contact condition		System condition	Diagnosis condition and Diagnosis result
Working range	---		---	---
Specified value	Reed closed		Check END	Syst. OK.

If the display does not indicate as described:

• Press → button.
• Check DTC memory → Diagnostic Trouble Code (DTC) memory, checking and erasing (scan tool functions 02 and 05)  .

If the specified values are not attained:

• Press → button.
• Press buttons - 0  - and - 6  - to select "End output" function 06 and press - Q  - button to confirm input.
• Switch ignition off.

Step 9: Display readiness code 

• Display readiness code → Readiness code (function 15), displaying  .