Work procedure

Connect VAG 1551 scan tool (VAG1552). Switch ignition on and select Engine Control Module (ECM) using address word 01 (connecting scan tool and selecting ECM; see VAG1551 SCAN TOOL (ST), CONNECTING AND SELECTING "ENGINE ELECTRONICS" ADDRESS WORD 01 ).

Indicated on display

Fig 1: Identifying Select Function Display

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Press buttons -1- and -5- to select "Readiness code" function 15. Press -Q- button to confirm input.

After all diagnostics have been successfully completed, display reads:

Indicated on display

Fig 2: Identifying Readiness Code, Test Complete Display

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Press --> button.
Press buttons -0- and -6- to select "End data transfer" function 06. Press -Q- button to confirm input.

If indicated on display:

Fig 3: Identifying Display Readiness Code, Test Not Complete Display

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One of the diagnostic tests was not completed successfully:

Explanation of 8 -digit readiness code

EXPLANATION OF 8 -DIGIT READINESS CODE

Readiness code is not generated unless all indicated positions display a 0
1	2	3	4	5	6	7	8	Diagnostic function
							0	Catalytic converter
						0		Catalytic converter heating (no diagnostic yet, always "0")
					0			EVAP canister system (tank ventilation system) and leak detection system
				0				Secondary Air Injection (AIR) system
			0					A/C system (no diagnostic yet, always "0")
		0						Oxygen sensors
	0							Oxygen sensor heating
0								EGR recirculation (not available, always "0")