Skoda Workshop Service and Repair Manuals

Indication of faults by means of warning lights -K47-, -K14/33- and -K155-

Arrangement of warning lights

Pos.	Denomination
1	ABS warning light -K47-
2	Hand brake/brake fluid level warning light -K14/33-
3	ESP warning light -K155-

WARNING Once the ABS warning light -K47- and the hand brake/brake fluid level warning light -K14/33- have lit up, then the rear wheels can already lock when braking lightly. Overview

Meaning	ABS warning light -K47-	Hand brake/brake fluid level warning light -K14/33-	ESP warning light -K155-
Ignition on (if the systems are OK, the lights go out after approx. 3 s)	lights up	lights up	lights up
ESP failure or ESP deactivated by means of button; ABS, EDL and EBD are active	does not light up	does not light up	lights up
System O.K.	does not light up	does not light up	does not light up
ESP intervention	does not light up	does not light up	flashes
ABS/EDL/ESP failure; EBD remains active (e.g. a wheel speed sensor is defective)	lights up	does not light up	lights up
ABS/EDL/ESP/EBD failure; (e.g. a wheel speed sensor is defective)	lights up	lights up	lights up
Brake fluid level too low; all systems O.K.	does not light up	lights up	does not light up

Warning light -K47- t  If the ABS warning light (-K47-) -1- does not go out after the ignition is switched on and after completion of the test sequence, the causes of the fault may be: -a- the supply voltage is less than 10 V -b- an ABS fault is present The antilock braking system is switched off if an ABS fault -b- is present. The EBD function (Electronic Brake pressure Distribution) is furthermore active while the conventional brake system remains fully operational. Interrogate the fault memory → Chapter. -c- a sporadic fault existed on a wheel speed sensor after the last vehicle start In case of a wheel speed sensor fault -c-, the ABS warning light goes out automatically -K47- after restarting the vehicle and after a speed above 20 km/h is reached. -d- the connection from the ABS control unit -J104- to the dash panel insert -J218- is interrupted → binder „Current Flow Diagrams, Electrical Fault Finding and Fitting Locations“ -e- Dash panel insert defective

Warning light -K47- and -K14/33- t  If the ABS warning light goes out (-K47-) -1- but the warning light for the hand brake/brake fluid level (-K14/33-) -2- remains lit and 3 warning tones are audible, the following can be the causes of the fault: a -  the brake fluid level is too low b -  the hand-brake is still applied c -  the switch -F9- for the warning light -K14/33- is defective or incorrectly adjusted d -  a fault in the operation of the hand brake/brake fluid level warning light -K14/33- → binder „Current Flow Diagrams, Electrical Fault Finding and Fitting Locations“ t  If the ABS warning light (-K47-) -1- and the hand brake/brake fluid level warning light (-K14/33-) -2- light up, then the ABS system and the EBD (Electronic Brake pressure Distribution) have failed. t  If the ABS warning light (-K47-) -1- and the hand brake/brake fluid level warning light (-K14/33-) -2- light up and 3 warning tones are audible, then the ABS and the EBD (Electronic Brake pressure Distribution) have failed.   Note The warning light for the hand brake/brake fluid level (-K14/33-) -2- only lights up after exceeding a speed of 10 km/h once or an engine speed of 2000 rpm.   WARNING Once the ABS warning light -K47- and the hand brake/brake fluid level warning light -K14/33- have lit up, then the rear wheels can already lock when braking lightly.

Warning light -K155- t  If the ESP warning light (-K155-) -3- does not go out after the ignition is switched on and after completion of the test sequence, the causes of the fault may be: There is a fault which exclusively effects the ESP. The ABS/EDL and EBD safety systems on the vehicle remain fully functional. Interrogate the fault memory → Chapter. a -  Short circuit to positive in ESP button -E256- b -  Short circuit to earth in the operation of the ESP warning light -K155- c -  the connection from the ABS control unit -J104- to the dash panel insert -J218- is interrupted → binder „Current Flow Diagrams, Electrical Fault Finding and Fitting Locations“ d -  the ESP system was switched off using the ESP button -E256- If the ESP warning light lights up -K155- for approx. 100 milliseconds after switching on the ignition, a coding without ESP control was entered. Code the control unit → Chapter. If the ESP warning light -K155- flashes while driving, the ESP system is operating in regulating mode. Warning light -K47-, -K14/33- and -K155- t  If the ABS warning light (-K47-) -1- and the hand brake/brake fluid level warning light (-K14/33-) -2- flash and the ESP warning light (-K155-) remains lit, the control unit is not yet coded. Code the control unit → Chapter.