TT Quattro Roadster L4-1.8L Turbo (AMU) (2002)
Acceleration Sensor: Service and Repair
ABS/ESP ITT Mark 20
Longitudinal acceleration sensor -G251-, deactivating
Note:
Display group number 040 is required for shutting off the longitudinal acceleration sensor -G251-, e.g. for checking the brake system on a
rolling dynamometer.
Switch ignition off and on again one time to re-activate the longitudinal acceleration sensor -G251-.
-
Connect VAG1551 scan tool and select the control module for brake electronics with ignition switched on (address word 03).
Rapid data transfer HELP
Select function XX
Indicated on display
-
Press buttons -0- and -4-. (04 selects "Initiate basic setting", function 4.)
Rapid data transfer Q
04 - Basic Setting
Indicated on display:
-
Press -Q- button to confirm input.
Basic Setting HELP
Input display group number XXX
Indicated on display:
-
Press buttons 0-, 4- and -0-.
-
Press -Q- button to confirm input.
ABS warning light will blink.
System in Basic Setting 40
Indicated on display:
The longitudinal acceleration sensor -G251- has now been shut off.
-
After completing test, re-activate the longitudinal acceleration sensor -G251- by switching ignition off and on again once.