Test conditions

• Coolant temperature must be at least 60 ° C display group 04, display zone 3.

Indicated on display

Basic setting Input display group number XXX

• Press keys 0 , 7 and 0 for "Display group number 70" and confirm entry with Q key.

Indicated on display: (1...4 = Display zones)

System in basic setting 70 → 1 2 3 4

When diagnosis is initiated by the engine control module the display in display zone 4 jumps from "Test OFF" to "Test ON"

• Run engine at idling speed until specification "EVAP OK" is displayed in display zone 4.

If display does not indicate as described:

• Press → key.
• Check DTC memory → DTC memory (functions 02 and 05), checking and erasing  .

If display indicates as described:

• Press C key.

Work step 8: Oxygen sensor aging diagnosis before catalyst (cycle duration monitor) 

Indicated on display:

Basic setting Input display group number XXX

• Press keys 0 , 3 and 4 for "Display group number 34" and confirm entry with Q key.

Indicated on display: (1...4 = Display zones)

System in basic setting 34 → 1 2 3 4

• Depress brake pedal and hold.
• Press accelerator pedal to wide open throttle position.

Engine speed is increased by the control module to 1800 to 2200 rpm.

• Maintain engine speed at 1800 to 2200 rpm until display in display zone 4 jumps from "Test OFF" to "Test ON". Catalyst temperature in display zone 2 must be between 350 and 500 ° C.
• Check cycle duration in display zone 3:

Specification: maximum 2.5 s

• Continue to maintain speed at 1800 to 2200 rpm until specification "B1-S1 OK" appears in display zone 4.

If display does not indicate as described:

• Release accelerator pedal and brake pedal.
• Press → key.
• Check DTC memory → DTC memory (functions 02 and 05), checking and erasing  .

If display indicates as described:

• Release accelerator pedal and brake pedal.
• Press C key.

Work step 9: Secondary air system diagnosis 

Indicated on display

Basic setting Input display group number XXX

• Press keys 0 , 7 and 7 for "Display group number 77" and confirm entry with Q key.

Indicated on display: (1...4 = Display zones)

System in basic setting 77 → 1 2 3 4

• Allow engine to continue running at idling speed.

If diagnosis is initiated from the engine control module the display in display zone 4 jumps from "Test OFF" to "Test ON"

• Continue to run engine at idling speed until specification "Syst. OK" appears in display zone 4.

If display does not indicate as described:

• Press → key.
• Check DTC memory → DTC memory (functions 02 and 05), checking and erasing  .

If display indicates as described:

• Press C key.

Work step 10: Oxygen sensor control system diagnosis 

Indicated on display

Basic setting Input display group number XXX

• Press keys 0 , 3 and 7 for "Display group number 37" and confirm entry with Q key.

Indicated on display: (1...4 = Display zones)

Read measured value block 37 → 1 2 3 4

• Depress brake pedal and hold.
• Press accelerator pedal to wide open throttle position.

The engine speed is increased by the control module to 1800 to 2200 rpm.

If diagnosis is initiated from engine the control module the display in display zone 4 jumps from "Test OFF" to "Test ON"

• Continue to maintain the speed at 1800 to 2200 rpm until specification "Syst. OK" appears in display zone 4.

If display does not indicate as described:

• Release accelerator pedal and brake pedal.
• Press → key.
• Check DTC memory → DTC memory (functions 02 and 05), checking and erasing  .

If the display indicates as described:

• Release accelerator pedal and brake pedal.
• Press C key.

Work step 11: Diagnosis of oxygen sensor aging after catalyst 

Indicated on display

Basic setting Input display group number XXX

• Press keys 0 , 4 and 3 for "Display group number 43" and confirm entry with Q key.

Indicated on display: (1...4 = Display zones)

System in basic setting 43 → 1 2 3 4

• Depress brake pedal and hold.
• Press accelerator pedal to wide open throttle position.

Engine speed is increased by the control module to 1800 to 2200 rpm.

• Maintain engine speed at 1800 to 2200 rpm until display in display zone 4 jumps from "Test OFF" to "Test ON". Catalyst temperature in display zone 2 must be min. 300 ° C.
• Continue to maintain speed at 1800 to 2200 rpm until specification "B1-S2 OK" appears in display zone 4.

If the display does not indicate as described:

• Release accelerator pedal and brake pedal.
• Press → key.
• Check DTC memory → DTC memory (functions 02 and 05), checking and erasing  .

If the display indicates as described:

• Release accelerator pedal and brake pedal.
• Press C key.

Work step 12: Diagnosis of oxygen sensor operational readiness after catalyst 

Indicated on display

Basic setting Input display group number XXX

• Press keys 0 , 3 and 6 for "Display group number 36" and confirm entry with Q key.

Indicated on display: (1...4 = Display zones)

System in basic setting 36 → 1 2 3 4

• Depress brake pedal and hold.
• Press accelerator pedal to wide open throttle position.

Engine speed is increased by the control module to 1800 to 2200 rpm.

If the diagnosis is initiated from the engine control module the display in display zone 2 jumps from "Test OFF" to "Test ON"

• Continue to maintain speed at 1800 to 2200 rpm until specification "B1-S2 OK" appears in display zone 2.

If the display does not indicate as described:

• Release accelerator pedal and brake pedal.
• Press → key.
• Check DTC memory → DTC memory (functions 02 and 05), checking and erasing  .

If the display indicates as described:

• Release accelerator pedal and brake pedal.
• Press C key.

Work step 13: Catalyst diagnosis 

Indicated on display

Basic setting Input display group number XXX

• Press keys 0 , 4 and 6 for "Display group number 46" and confirm entry with Q key.

Indicated on display: (1...4 = Display zones)

System in basic setting 46 → 1 2 3 4

• Depress brake pedal and hold.
• Press accelerator pedal to wide open throttle position.

Engine speed is increased by the control module to 1800 to 2200 rpm.

• Maintain engine speed at 1800 to 2200 rpm until display in display zone 4 jumps from "Test OFF" to "Test ON". Catalyst temperature in display zone 2 must be at least 440 ° C.
• Continue to maintain engine speed at 1800 to 2200 rpm until Specification "CatB1 OK" appears in display zone 4.

If the display does not indicate as described:

• Release accelerator pedal and brake pedal.
• Press → key.
• Check DTC memory → DTC memory (functions 02 and 05), checking and erasing  .

If the display indicates as described:

• Release accelerator pedal and brake pedal.
• Press → key.

Work step 14: Read out readiness code 

• Read readiness code → Readiness code, reading 

Generating readiness code for engine code AWP, work steps 1 to 5 

Work step Function/Diagnosis		Function/Block	Display zone 1	Display zone 2	Display zone 3	Display zone 4	Test conditions
1	Check DTC memory	02/---	---	---	---	---	Ignition switched on
2	Erase DTC memory	05/---	---	---	---	---	Ignition switched on
3	Throttle valve adaptation	04/060	Throttle valve angle (Sensor 1)	Throttle valve angle (Sensor 2)	---	Result	Ignition switched on
			3 to 93%	97 to 3%	0...8	ADP OK.
4	Temperature scan	08/004	Engine speed	Battery voltage	Coolant	Intake air	Idling
			640 to 860 rpm	12.0 to 15.0 V	60 to 80 ° C	max. 80 ° C
5	Leak diagnosis	04/071	REED status	Text	Text	Result	Idling
			Reed cl.	---	Check. END	Syst. OK

Generating readiness code for engine code AWP, work steps 6 to 10 

Work step Function/Diagnosis		Function/Block	Display zone 1	Display zone 2	Display zone 3	Display zone 4	Test conditions
6	Oxygen sensor Status	04/030	Oxygen sensor Status before Cat.	Oxygen sensor Status after Cat.			Idling
			x11	xxx
7	Tank venting	04/070	Degree of valve opening	Oxygen sensor control	EVAP valve ground current	Result	Idling
	EVAP valve N80		0 to 100%	-7.0 to 7.0%	min. 30.0%	EVAP OK
8	Oxygen sensor aging	04/034	Engine speed	Cat.-Temp.	Operation time	Result	1800 to 2200 rpm
	before catalyst		1800 to 2200 rpm	min. 350 ° C	0.5 to 2.5 s	B1-S1 OK
9	Secondary air system	04/077	Engine speed	Air Mass Motor	Air Mass Secondary air	Result	Idling
			640 to 860 rpm	5.0 to 12.0 g/s	-45 to 100%	Syst. OK
10	Oxygen sensor control	04/037	Engine load	Oxygen sensor voltage	Dwell time	Result	1800 to 2200 rpm
	dwell time		12.0 to 30.0%	0.1 to 0.9 V	-0.02 to 0.02	Syst. OK

Generating readiness code for engine code AWP, work steps 11 to 14 

Work step Function/Diagnosis		Function/Block	Display zone 1	Display zone 2	Display zone 3	Display zone 4	Test conditions
11	Oxygen sensor aging	04/043	Engine speed	Cat.-Temp.	Oxygen sensor voltage after Cat.	Result	1800 to 2200 rpm
	after catalyst		1800 to 2200 rpm	min. 300 ° C	0.1 to 0.9 V	B1-S2 ok
12	Oxygen sensor operational readiness	04/036	Oxygen sensor voltage after Cat.	Result			1800 to 2200 rpm
	after catalyst		0.1 to 0.4 V or 0.5 to 0.9 V	B1-S2 ok
13	Catalyst diagnosis	04/046	Engine speed	Cat.-Temp.	Conversion	Result	1800 to 2200
			1800 to 2200 rpm	min. 440 ° C	0.00 to 0.32	CatB1 OK
14	Read readiness code	15/---	---	---	---	---	Ignition on