Read readiness code

Requirements

There must not be any DTCs stored in DTC memory. Refer to Diagnostic mode 3: Check DTC Memory .
Coolant temperature must be at least 80° C. Refer to Diagnostic mode 1: Check measured values

Work sequence

If all diagnoses have run through successfully, the 8-digit number block

Specified value: 00000000 must be displayed.

Evaluation PID 01: System status-information (right 8-digit number block:)

Meaning if display position = 0
1	2	3	4	5	6	7	8	Diagnostic function
0								Exhaust gas recirculation OK not available/always "0"
	0							Oxygen sensor heater OK
		0						Oxygen sensors OK
			0					A/C system OK not available/always "0"
				0				Secondary Air Injection (AIR) system OK
					0			EVAP canister system (tank ventilation system) OK
						0		Catalytic converter heater OK not available/always "0"
							0	Catalytic converter OK

If a 1 is displayed instead of a 0 in the 8-digit number block: