SEAT Workshop Service and Repair Manuals > Leon Mk2 > Power unit | 4LV Injection and Ignition System | Self diagnosis, V.A.G Inspection Service | Readiness code

Readiness code consulting

Special tools and workshop equipment required

t	Fault reader -V.A.G 1551- or vehicle system tester -V.A.G 1552- with cable -V.A.G 1551/3B-

Work sequence

–	Connect fault reader -V.A.G 1551/V.A.G 1552-. Then switch ignition on and select engine control unit with the “Address code” 01. (Fault reader: Connecting and selecting the engine control unit → Chapter).

Indicated on display:

–	Press keys 1 and 5 for function “Readiness code” and confirm entry with Q -key.

If all systems concerned have undergone diagnosis with the result “OK”, the following message should appear:

Rapid data transfer                 HELP

Select function XX

Indicated on display:

–	Press → -key.

–	Press keys 0 and 6 for the “End output” function and confirm input with the Q -key.

–	Switch off ignition

Readiness code

00000000 - Test complete

Indicated on display:

One of the diagnoses had a negative result:

–	Press → -key.

–	Generating readiness code → Chapter.

Significance of figures in 8-digit number block of the readiness code

Readiness code

00101101 - Test incomplete

To generate the readiness code, all digits must be at “0”
1	2	3	4	5	6	7	8	Diagnostic function
							0	Catalytic converter
						0		Catalytic converter heating (at the moment there is no diagnosis / always “0”)
					0			Activated charcoal filter system; (fuel tank venting system)
				0				Secondary air system (does not exist/always “0”)
			0					Air conditioning (at the moment there is no diagnosis / always “0”)
		0						Lambda probe
	0							Lambda probe heating
0								Exh. gas recirculation

SEAT Workshop Service and Repair Manuals