SEAT Workshop Service and Repair Manuals

Electrical and electronic components and their locations

1 -	Automatic gearbox control unit -J217-

q	Fitting location → Fig..

q	Removing → Fig..

q	Installing → Fig..

q	The control unit transmits and receives data from the data bus.

2 -	Engine control unit

q	Location and removing and installing → Fig..

q	The control unit transmits and receives data from the data bus.

3 -	Selector lever position display -Y6-

q	Fitting location → Fig..

q	Simultaneous illumination of all selector lever position display segments indicates gearbox emergency running mode.

4 -	Diagnostic connection

q	Fitting location → Fig..

5 -	Multi-function switch -F125-

q	Removing, installing and adjusting → Chapter.

q	Can be checked using “guided fault finding” of -VAS 5051-.

6 -	Intermediate shaft speed sender -G265-

q	Picks up a signal at gear A (intermediate speed).

q	Location: in gearbox.

q	Can be checked using “guided fault finding” of -VAS 5051-.

q	Removing and installing → Chapter.

7 -	Vehicle speed sender -G68-

q	Measures gearbox output shaft speed (vehicle speed).

q	Location: in gearbox.

q	Can be checked using “guided fault finding” of -VAS 5051-.

q	Removing and installing → Chapter.

8 -	Gearbox input speed sender -G182-

q	Measures gearbox input shaft speed (turbine shaft).

q	Location: in gearbox.

q	Can be checked using “guided fault finding” of -VAS 5051-.

q	Removing and installing → Chapter.

9 -	Gearbox oil temperature sender -G93-

q	Location: in gearbox.

q	Can be checked using “guided fault finding” of -VAS 5051-.

q	As part, available only with gearbox wiring harness → Electronic parts catalogue “ETKA”.

q	Removing and installing → Chapter.

10 -	Selector lever lock solenoid -N110-

q	Location and removing and installing → Chapter.

q	Can be checked using “guided fault finding” of -VAS 5051-.

11 -	Brake pressure switch -F270-

q	Location: switch is located on front wall, in brake line to front right brake calliper.

q	Signal can be checked using “guided fault finding” of -VAS 5051-.

12 -	Valve body

q	Location: in gearbox.

q	Removing and installing → Chapter.

q	The solenoid valves -N88-, -N89-, -N90-, -N91-, -N92-, -N93-, -N281-, -N282- and -N283- are attached to the valve body → Chapter.

q	The valves can be checked using “guided fault finding” of -VAS 5051-.

13 -	Brake light switch -F-

q	Location and removing and installing → Fig..

q	Can be checked using “guided fault finding” of -VAS 5051-.

14 -	Starter inhibitor and reversing light relay -J226-

q	Fitting location → Fig..

15 -	Kickdown switch -F8-

q	Fitting location → Fig..

q	Can be checked using “guided fault finding” of -VAS 5051-.

16 -	Tiptronic switch -F189-

q	Removing and installing → Chapter.

q	Can be checked using “guided fault finding” of -VAS 5051-.

17 -	Throttle valve potentiometer -G69- or accelerator pedal position sender -G79-

q

→ Fig.

18 -	Cruise control system switch -E45-

q	Fitting location → Fig..

q	Removing and installing → Electrical system; Rep. Gr.94.

Location of automatic gearbox control unit -J217- The control unit -1- is located in engine compartment on left.

Remove automatic gearbox control unit -J217- –  Release multi-pin connector and then pull connector off control unit. –  Remove trims, battery and battery tray. The individual working steps that are required for this are listed in chapter → Chapter „Checking and adjusting selector lever cable“. –  Remove control unit.

Install automatic gearbox control unit -J217- Install in reverse order of removal. –  Fit multi-pin connector onto control unit -J217- pins -1- then lock multi-pin connector -2-. –  Perform self-diagnosis and make the basic setting → “guided fault finding” with VAS 5051.

Engine control unit Location: control unit -2- is located in engine compartment on left. Removing and installing control unit → Rep. Gr.23 or → Rep. Gr.24 of the corresponding engine code letter If engine or gearbox control units are renewed, the system must be brought to basic setting with -VAS 5051-.

Selector lever position display -Y6- Location: in dash panel insert with data bus diagnostic interface -J533- Removing and installing selector lever position display → Electrical system; Rep. Gr.90

Diagnostic connection Location: diagnostic connection -arrow- is located below driver storage compartment.

Brake light switch -F- Location: brake light switch -arrow- is located on pedal cluster. Removing and installing brake light switch → Brake systems; Rep. Gr.46.

Starter inhibitor and reversing light relay -J226- Location: relay is located on relay holder behind shelf on driver side. Relay is identified with number “175”-arrow-.

Kickdown switch -F8- Location: kickdown switch -arrow- is integrated in accelerator pedal position sender. Removing and installing kickdown switch –  Repair accelerator mechanism → Rep. Gr.20. –  After changing kickdown switch, perform self-diagnosis and make the basic setting → “guided fault finding” with VAS 5051.

Tiptronic switch -F189- t  Location: switch is part of printed circuit board located in selector mechanism cover. t  It consists of 3 Hall sensors, actuated by solenoids. t  The switch can be checked using “guided fault finding” of -VAS 5051-. t  If switch is renewed, cover must be renewed with symbol panel and printed circuit board → Chapter.

Throttle valve potentiometer -G69- or accelerator pedal position sender -G79- Location → Rep. Gr.23 or → Rep. Gr.24 of the corresponding engine code letter Engine control unit then passes on signal to gearbox control unit. Signal comes from data bus. In all cases, only the electrical signal is checked by the self-diagnosis of the automatic gearbox, not the potentiometer itself! The signal can be checked using “guided fault finding” of -VAS 5051-. It is therefore imperative that the self-diagnosis of the engine control unit is also carried out when the self-diagnosis indicates that this signal is faulty.

Cruise control system switch -E45- Location: cruise control switch is located on steering column switch. Removing and installing cruise control switch → Electrical system; Rep. Gr.94