Skoda Workshop Service and Repair Manuals

Test sequence and test tables with measured values Perform with the vehicle diagnosis, measurement and information system -VAS 5051-. → Chapter Perform with the vehicle system tester -V.A.G 1552- –  Connect up vehicle system tester -V.A.G 1552- and with the ignition switched on enter → Chapter the address word 03 - brake electronics

Readout on display: –  Select function 08„Read measured value block“ and confirm with the key Q. Readout on display:

Vehicle system test HELP Select function XX

Readout on display: –  Enter display group → Anchor What now appears in the display is the measured value block selected in standardised form.   Note Proceed according to the following table to switch to another display group:

Reading measured value block Enter display group number XXX

Display group number	-V.A.G 1551-	-V.A.G 1552-
higher	Press 3	Press ↑
lower	Press 1	Press ↓
skip	Press C	Press C

–  If the nominal values are reached in all display fields, press the key →. –  Press 06 for the function „End output“ and confirm with Q.

Display group number 001:

The current wheel speeds are displayed. They serve to check the speed sensor assignment relatively to the wheel (to this end raise the vehicle and turn the wheel by hand).

	Reading measured value block 1			→	Readout on display
	0 km/h	0 km/h	0 km/h	0 km/h
					Rear right wheel speed (km/h)
				Rear left wheel speed (km/h)
			Front right wheel speed (km/h)
		Front left wheel speed (km/h)

Display group number 002:

vehicles with ABS, ABS/EDL/TCS BOSCH 5.7

	Reading measured value block 2			→	Readout on display
	0	0	1
					not assigned
				Relay for solenoid valves of ABS -J106- t  0 - Not allowed during the function „Read measured value block“. The relay was not activated with „ignition on“. t  1 - Specified value; with „ignition on“ the relay was activated by the ABS with EDL control unit -J104-.
			Return flow pump for ABS -V39- t  0 - Specified value; no voltage on return flow pump motor. t  1 - Not allowed during the function „Read measured value block“. Voltage present on return flow pump motor.
		Brake light switch -F- t  0 - Brake pedal not actuated t  1 - Brake pedal operated, if deviation carry out electrical test, test step No. 4 → Chapter

vehicles with ABS/EDL/TCS/ESP BOSCH 5.7

	Reading measured value block 2			→	Readout on display
	0	0	activated	0
					TCS and ESP button -E256- t  0 - Switch not actuated t  operated - button operated, if deviation: Perform electrical test, test step No. 5 → Chapter
				Switch for hand-brake control -F9- t  0 - Hand brake not applied t  operated - hand brake applied, if deviation: Perform electrical test, test step No. 7 → Chapter
			Brake light switch -F- t  0 - Brake pedal not actuated t  operated - brake pedal actuated, if deviation: Perform electrical test, test step No. 4 → Chapter
		Brake pedal switch -F47- t  0 - Brake pedal not actuated t  operated - brake pedal actuated, if deviation: Perform electrical test, test step No. 4 → Chapter

Display group number 003:

vehicles with ABS/EDL/TCS BOSCH 5.7

Readout of the display group number must occur while the engine is running.

	Reading measured value block 3			→	Readout on display
	800 rpm	10 %	1
					not assigned
				Switch for the Traction Control System -E132- t  0 - Switch not actuated t  1 - Switch operated, if deviation: Perform electrical test, test step No. 5 → Chapter
			current engine torque t  Display range 0...100 %
		Engine speed t  Display range 0...8000 rpm

vehicles with ABS/EDL/TCS/ESP BOSCH 5.7

	Reading measured value block 3			→	Readout on display
	770 rpm	33 Nm	33 Nm	0 %
					Throttle valve angle t  Display range 0...100 %
				Engine loss torque t  Display range 0...630 Nm
			current engine torque t  Display range 0...630 Nm
		Engine speed t  Display range 0...8000 rpm

Display group number 004:

vehicles with ABS/EDL/TCS BOSCH 5.7

	Reading measured value block 4			→	Readout on display
	2:50 h	0	0
					not assigned
				Disregard display
			EDL disconnected because of increased brake temperature t  0 - none t  1 - yes
		Stationary time information (cooling time for brakes) t  too great t  ERROR t  invalid

vehicles with ABS/EDL/TCS/ESP BOSCH 5.7

	Reading measured value block 4			→	Readout on display
	2:50 h	on/off
					not assigned
				not assigned
			EDL disconnected because of increased brake temperature
		Stationary time information (cooling time for brakes) t  too great t  ERROR t  invalid

Display group number 005:

vehicles with ABS/EDL/TCS/ESP BOSCH 5.7

	Reading measured value block 5			→	Readout on display
	0,00°	0,00°/s	1,3 bar	0.00 m/s2
					Lateral acceleration sender -G200- t  Specified value for vehicle at standstill: -0.7…0.7 m/s2 t  Specified value at full steering angle and at a speed of 20 km/h: -6.0…6.0 m/s2
				Brake pressure sender 1 -G201- t  Specified value for not-operated brake: -7.0…7.0 bar
			Yaw rate sender -G202- t  Specified value for vehicle at standstill: -3.0…3.0 °/s
		Steering angle sender -G85- t  Specified value when driving straight ahead: -2.5…2.5°1)

1) If a speed of 20 km/h is exceeded self-diagnosis is discontinued by the ABS with EDL control unit -J104-.

Display group number 006:

vehicles with ABS/EDL/TCS/ESP BOSCH 5.7

	Reading measured value block 6			→	Readout on display
	12.7 V	on	off	WSC XXXXX
					Workshop code → operating instructions vehicle system testerV.A.G 1552
				Return flow pump for ABS -V39- t  off - Specified value; no voltage on return flow pump motor. t  on - Not allowed during the function „Read measured value block“. Voltage present on return flow pump motor.
			Relay for solenoid valves of ABS -J106- t  on - Specified value; with „ignition on“ the relay was activated by the ABS with EDL control unit -J104-. t  off - Not allowed during the function „Read measured value block“. The relay was not activated with „ignition on“.
		Supply voltage of the ABS control unit -J104- t  Specified value: 11,0 ... 14,5 V

Display group number 125:

vehicles with ABS/EDL/TCS/ESP BOSCH 5.7

	Reading measured value block 125			→	Readout on display
	Steering angle 1 1	Engine 1	Gearbox 1	Combi 1
					Data BUS for dash panel insert t  1 - Data BUS connection is present t  0 - Data BUS connection is not present1)
				Data BUS for gearbox control unit2) t  1 - Data BUS connection is present t  0 - Data BUS connection is not present1)
			Data BUS for engine control unit t  1 - Data BUS connection is present t  0 - Data BUS connection is not present1)
		Data BUS for steering angle sender t  1 - Data BUS connection is present t  0 - Data BUS connection is not present1)

1) The following fault causes may be present: Data BUS connection interrupted; data BUS wiring interchanged; steering angle sender or engine control unit or gearbox control unit or dash panel insert defective.

2) Only on vehicles with automatic gearbox.