Readiness Code, Reading

Prerequisites

There must not be any DTCs stored in DTC memory DIAGNOSTIC MODE 03 - READ DTC MEMORY .

Procedure

-- Connect diagnostic tester.

-- Start engine and let run at idle.

-- Under address word 33, select "Diagnostic mode 1: Checking 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
	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 not available/always "0"
					0			EVAP canister system (tank ventilation system) OK not available/always "0"
						0		Catalytic converter heater OK not available/always "0"
							0	Catalytic converter OK Catalytic converter diagnosis not available/always "0"

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