Skoda Workshop Service and Repair Manuals

Test steps 21 - 28

Switch on measuring range: resistance measurement (200 Ω)/(20 MΩ)
Test step	V.A.G 1598 A bushes	Test covers	l  Test conditions –  additional works	Specified value	Measures for deviations from nominal value
21	-	Cables for yaw rate sender -G202-	l  Ignition off l  Measuring range 200 Ω set –  Pull out the multi-pin connector -T47a- from the ABS control unit -J104-. –  Connect test box -V.A.G 1598 A- with adapter -V.A.G 1598/33- –  Disconnect the plug connection -T3m- from the yaw rate sender -G202-
			–  Check the following line connections for an open circuit:		–  Test wiring for open circuit. –  Repair the wiring according to the current flow diagram → binder „Current Flow Diagrams, Electrical Fault Finding and Fitting Locations“
			–  Wiring of contact -T3m/1- (yaw rate sender) with contact -T47a/42- (control unit) –  Wiring of contact -T3m/2- (yaw rate sender) with contact -T47a/11- (control unit) –  Wiring of contact -T3m/3- (yaw rate sender) with contact -T47a/27- (control unit)	max. 1.5 Ω
			l  Measuring range 20 MΩ set –  Remove fuse S13 –  Check cables for short-circuit to positive or to earth	∞Ω

Switch on measuring range: resistance measurement (200 Ω)/(20 MΩ)
Test step	-V.A.G 1598 A- bushes	Test covers	l  Test conditions –  additional works	Specified value	Measures for deviations from nominal value
22	-	Cables for brake pressure sender 1 -G201-	l  Ignition off l  Measuring range 200 Ω set –  Pull out the multi-pin connector -T47a- from the ABS control unit -J104- –  Connect test box -V.A.G 1598 A- with adapter -V.A.G 1598/33- –  Disconnect the plug connection -T30- from the brake pressure sender -G201-
			–  Check the following line connections for an open circuit: –  Wiring of contact -T30/1- (brake pressure sender) via plug connection -T14c/1- with contact -T47a/28- (control unit) –  Wiring of contact -T30/2- (brake pressure sender) via plug connection -T14c/2- with contact -T47a/12- (control unit) –  Wiring of contact -T30/3- (brake pressure sender) via plug connection -T14c/3- with contact -T47a/43- (control unit)	max. 1.5 Ω	–  Test wiring for open circuit. –  Repair the wiring according to the current flow diagram → binder „Current Flow Diagrams, Electrical Fault Finding and Fitting Locations“
			l  Measuring range 20 MΩ set –  Remove fuse S13 –  Check cables for short-circuit to positive or to earth	∞Ω

Switch on measuring range: resistance measurement (200 Ω)/(20 MΩ)
Test step	-V.A.G 1598 A- bushes	Test covers	l  Test conditions –  additional works	Specified value	Measures for deviations from nominal value
23	-	Cables for brake pressure sender 2 -G214-	l  Ignition off l  Measuring range 200 Ω set –  Pull out the multi-pin connector -T47a- from the ABS control unit -J104- –  Connect test box -V.A.G 1598 A- with adapter -V.A.G 1598/33- –  Disconnect the plug connection -T3p- from the brake pressure sender -G201-
			–  Check the following line connections for an open circuit:		–  Test wiring for open circuit.
			–  Wiring of contact -T3p/1- (brake pressure sender 2) via plug connection -T14c/12- with contact -T47a/26- (control unit) –  Wiring of contact -T3p/2- (brake pressure sender 2) via plug connection -T14c/13- with contact -T47a/10- (control unit) –  Wiring of contact -T3p/3- (brake pressure sender) via plug connection -T14c/14- with contact -T47a/41- (control unit)	max. 1.5 Ω	–  Repair the wiring according to the current flow diagram → binder „Current Flow Diagrams, Electrical Fault Finding and Fitting Locations“
			l  Measuring range 20 MΩ set –  Remove fuse S13 –  Check cables for short-circuit to positive or to earth	∞Ω

Switch on measuring range: resistance measurement (200 Ω)/(20 MΩ)
Test step	-V.A.G 1598 A- bushes	Test covers	l  Test conditions –  additional works	Specified value	Measures for deviations from nominal value
24	-	Cables for solenoid coil for brake pressure -N247-	l  Ignition off l  Measuring range 200 Ω set –  Pull out the multi-pin connector -T47a- from the ABS control unit -J104- –  Connect test box -V.A.G 1598 A- with adapter -V.A.G 1598/33- –  Disconnect plug connection T6x at brake servo unit –  Check the following line connections for an open circuit: –  Wiring of contact -T6x/4- (solenoid coil for brake pressure -N247-) via plug connection -T14c/7- with contact -T47a/17- (ABS control unit)
			–  Wiring of contact -T6x/3- (solenoid coil for brake pressure -N247-) via plug connection -T14c/8- with contact -T47a/17- (ABS control unit -J104-).	max. 1.5 Ω	–  Test wiring for open circuit. –  Repair the wiring according to the current flow diagram → binder „Current Flow Diagrams, Electrical Fault Finding and Fitting Locations“
			l  Measuring range 20 MΩ set –  Remove fuse S13 –  Check cables for short-circuit to positive or to earth	∞ Ω
			l  Measuring range 200 Ω set –  Disconnect multi-pin connector T14c –  Check contacts -7- and -8- in the plug connection -T14c- to the solenoid coil for brake pressure -N247-	1.0 ... 2.0 kΩ	–  The brake servo unit must be replaced if the specified value is not reached → Chapter.

Switch on measuring range: resistance measurement (200 Ω)/(20 MΩ)
Test step	-V.A.G 1598 A- bushes	Test covers	l  Test conditions –  additional works	Specified value	Measures for deviations from nominal value
25	-	Brake detection switch -F83-	l  Ignition off l  Measuring range 200 Ω set –  Pull out the multi-pin connector -T47a- from the ABS control unit -J104- –  Connect test box -V.A.G 1598 A- with adapter -V.A.G 1598/33- –  Disconnect plug connection -T6x- at brake servo unit –  Check the following line connections for an open circuit: –  Wiring of contact -T6x/1- (brake detection switch -F83-) via plug connection -T14c/5- with contact -T47a/13- (ABS control unit -J104-)
			–  Wiring of contact -T6x/2- (brake detection switch -F83-) via plug connection -T14c/6- with contact -T47a/29- (ABS control unit -J104-) –  Wiring of contact -T6x/5- (brake detection switch -F83-) via plug connection -T14c/9- with contact -T47a/327- (ABS control unit -J104-).	max. 1.5 Ω	–  Test wiring for open circuit. –  Repair the wiring according to the current flow diagram → binder „Current Flow Diagrams, Electrical Fault Finding and Fitting Locations“
			l  Measuring range 20 MΩ set –  Remove fuse S13 –  Check cables for short-circuit to positive or to earth	∞ Ω

Switch on measuring range: resistance measurement (200 Ω)/(20 MΩ)
Test step	-V.A.G 1598 A- bushes	Test covers	l  Test conditions –  additional works	Specified value	Measures for deviations from nominal value
26	19+20	Data BUS cables	l  Ignition off l  Measuring range 200 Ω set –  Disconnect the multi-pin plug connections from the control units connected to a data BUS line (connection in the dash panel wiring loom -A122- and -A121-) –  Connect test box -V.A.G 1598 A- with adapter -V.A.G 1598/33- –  Check the following line connections for an open circuit: –  to the steering angle sender –  to the engine control unit –  to the automatic gearbox control unit 1)
			–  Wiring of contact -T47a/19- (control unit) via connection A121 to contact -T6w/3- (steering angle sender -G85-) –  Continue via connection A121 to the connected control units –  Wiring of contact -T47a/20- (control unit) via connection A122 to contact -T6w/2- (steering angle sender -G85-). –  Continue via connection A122 to the connected control units according to current flow diagram	max. 1.5 Ω	–  Test wiring for open circuit. –  Repair the wiring according to the current flow diagram → binder „Current Flow Diagrams, Electrical Fault Finding and Fitting Locations“
			l  Measuring range 20 MΩ set –  Remove fuse S13 –  Check cables for short-circuit to positive or to earth	∞ Ω

1) Only on vehicles with automatic gearbox

Switch on measuring range: voltage measurement (20 V =)
Test step	-V.A.G 1598 A- bushes	Test covers	l  Test conditions –  additional works	Specified value	Measures for deviations from nominal value
27	-	Voltage supply for vehicle system tester -V.A.G 1552-, plug connection -T16a-	l  Ignition on		–  Test wiring of -T16a/4- to earth. –  Test wiring of -T16a/1- via -S5-. –  Repair the wiring according to the current flow diagram → binder „Current Flow Diagrams, Electrical Fault Finding and Fitting Locations“
			–  Connect the handheld multimeter, e.g. -V.A.G 1526 A-, with the measuring tool set -V.A.G 1594 A- to -T16a-1) –  Test wiring between contact -T16a/4- and contact -T16a/1-	10.0-14.5V

1) Contact assignment of the plug connection for the voltage supply and the self-diagnosis with the vehicle system tester -V.A.G 1552- → Chapter

Switch on measuring range: resistance measurement (200 Ω)
Test step	-V.A.G 1598 A- bushes	Test covers	l  Test conditions –  additional works	Specified value	Measures for deviations from nominal value
28	-	-K- cable for the self-diagnosis, plug connection T16a	l  Ignition off
			l  Measuring range 200 Ω set –  Remove fuse S13 –  Pull out the multi-pin connector -T47a- from the ABS control unit -J104- –  Connect test box -V.A.G 1598 A- with adapter -V.A.G 1598/33- –  Test wiring between contact -T16a/7- and contact -T47a/39-	max. 1.5 Ω	–  Test wiring of contact -T16a/7- to contact -T47a/39- –  Repair the wiring according to the current flow diagram → binder „Current Flow Diagrams, Electrical Fault Finding and Fitting Locations“
			l  Measuring range 20 MΩ set –  Remove fuse S13 –  Check cables for short-circuit to positive or to earth	∞Ω	–  Repair the wiring according to the current flow diagram → binder „Current Flow Diagrams, Electrical Fault Finding and Fitting Locations“