Basic Setting Overview

BASIC SETTING (SCAN TOOL FUNCTION 04)

NOTE:
- Basic setting is carried out with engine running.
- The OBD II Engine Control Module (ECM) shows the "Readiness Code" in display group 29. The readiness code is reset when the (ECM) power is off and each time the DTC memory is erased. In order to regenerate the readiness code it is necessary to take a trip in "mixed city and highway" driving-approx. 1-1/2 to 5 minute drive at 80-100 km/h (50-63 mph) with manual transmission in 4th or 5th gear, preferably 4th gear, or automatic transmission selector lever in "0" position.
- When the "Basic Setting" function 04 is initiated with the VAG 1551 scan tool, the learning values are relearned in systems capable of learning. Learning is prohibited, as soon as a malfunction is stored in the DTC memory that relates to a system capable of learning (not with sporadic malfunctions).
- All learning values are erased by disconnecting the connector from the ECM. After that, uneven idle can occur briefly In this case, let engine run in idle for a few minutes until the learning process is completed.

DISPLAY GROUP GUIDELINES
^ Display groups 000 to 010 are used for general troubleshooting.
^ Display groups 011 to 045 are used for troubleshooting when driving performance problems exist and to evaluate components and systems that influence the exhaust.
^ Oxygen Sensor (O2S) control can be switched ON or OFF using display group 99.


NOTE: After function O4 is called up, the ECM carries out the following operations:

- Constant ignition timing point of 12° BTDC is output in idle.
- Digital idle speed control is blocked.
- Evaporative emissions canister purge regulator valve is closed.
- A/C compressor is switched off
- EGR vacuum regulator solenoid valve is closed
- No coolant temperature correction-fixed value of 80°C (176°F)
- Learning values are relearned (idle and CO content are adjusted automatically)