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 

• Connect diagnostic tester. Refer to Diagnostic tester, connecting 
• Start engine and let run at idle.
• Under address word 33, select "Diagnostic mode 1: Check measured values."
• Select desired measuring value "PID 01".

• Observe the right 8-digit number block:

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:

• Generate readiness code. Refer to Readiness code, generating