B. Replace Engine Control Module (ECM) All Models
1. Remove ECMNote:
Prior to removing ECM, connect VAG 1551; check DTC (Diagnostic Trouble Codes) readout and correct if other than P0125/16509.
^ Ignition switch off
^ Remove plenum changer cover, right side
^ Disconnect 68 pin connector -1-
^ Remove bolt and nuts -2- and -2a-
^ Pull out mounting plate -3- with ECM -4-
^ Separate mounting plate from ECM, removing screws -5-
^ Do not remove felt pads -6- from mounting plate
2. Install and Set New ECM
Note:
When installing the ECM, identification label must be upward
^ Install latest version ECM
^ Ensure that plastic clip - see illustration - is properly in position
^ Tighten bolt and nut -2- and -2a- (1O NM - 7 ft lb)
^ Ignition switch on
^ Code Control Module (Scan Tool Function 07). Follow procedure in appropriate repair manual
^ Check DTC Memory (Scan Tool Function 02). Follow procedure in appropriate repair manual
^ Erase DTC memory (Scan Tool Function 05). Follow procedure in appropriate repair manual
3. Perform Basic Setting
^ Press buttons -0- and -4- to select "Basic Setting" function 04 and press -0- button to confirm input
^ Press buttons -0-, -9- and -8- to input display 098 and press -0- to confirm input
Note:
Do not depress accelerator pedal.
^ VAG 1551 display in channel 4 will indicate adaptation completed by showing I.O."
If display does NOT show "I.O.", stop procedure at this step; find cause and repair. Begin again with "Basic Setting.7, If "I.O." continue with next step.
^ Wait at least 30 seconds before ending basic selling then press --> button
^ Press button -0- and -6- and press -Q- button to confirm input - (end output)
^ Disconnect VAG 1551
^ Start engine and let idle until coolant temperature is above 80 degrees Centigrade
^ Reconnect VAG 1551
^ Check DTC memory (Scan Tool Function 02).
Follow procedure in appropriate repair manual
^ Set and verify readiness code - 01.29 - 01.54.
Follow procedure in appropriate repair manual