With Generic Scan Tool

READINESS CODE, GENERATING

Requirements

^ The respective fuses of the Motronic fuel injection and ignition system must be OK.

^ Battery voltage must be at least 11.5 volts.

^ All electrical consumers such as, lights and rear window heating must be switched off.

^ If vehicle is equipped with an A/C system, it must be switched off.

^ Ground (GND) connections between engine and chassis must be OK.

^ There must not be any DTCs stored in DTC memory. Diagnostic mode 3: Check DTC memory.

Let vehicle cool off with the ignition switched off until the following conditions are met:

^ Intake air temperature 10 to 50° C. Diagnostic mode 1: Check measured values; PID 15.

^ Coolant temperature approx. intake air temperature (10 to 50° C). Diagnostic mode 1: Check measured values; PID 5.

Procedure

- Connect diagnostic tester.

- Start engine and let run at idle for at least 15 minutes.

- Perform a 15 minute road test in the highest gear or in the highest driving mode on a level driving surface.

Observe the safety precautions that apply to road tests.

The following operating conditions must be met during this road test:

- Engine speed approx. 1800 to 2200 RPM. Diagnostic mode 1: Check measured values; PID 12.

- Vehicle speed constant 90 km/h. Diagnostic mode 1: Check measured values; PID 13.

- Read readiness code.