Volkswagen Workshop Service and Repair Manuals

Electrical and electronic components and their locations

1 -	Control unit for automatic gearbox -J217-

q	Location and removing and installing through 12.92 → Fig.

q	Location and removing and installing from 01.93 → Fig.

q	Removing with 68-pin connector → Fig.

q	Installing with 68-pin connector → Fig.

q	Checked through self-diagnosis → Chapter

2 -	Engine control unit

q	Location → Fig.

q	Removing and installing → Repair group 24

or

q	Removing and installing → Repair group 25

If engine or gearbox control units are renewed, the system must be restored to basic setting → Chapter, Initiating basic setting.

3 -	Diagnostic connection

Vehicles through 07.93

q	Location: the diagnosis connection is located beneath the heating and ventilation controls next to the switch for the heated rear window. ⇒ Connecting fault reader -V.A.G 1551- and selecting functions → Chapter

4 -	Diagnostic connection

Vehicles from 08.93

q	Location: the diagnosis connection is located behind cover to the right of the ashtray. ⇒ Connecting fault reader -V.A.G 1551- and selecting functions → Chapter

5 -	Valve body

q	Location → Fig.

q	The solenoid valve 1 -N88-, -N89-, solenoid valve 3 -N90-, solenoid valve 4 -N91-, solenoid valve 5 -N92-, solenoid valve 6 -N93-, solenoid valve 7 -N94- and the oil temperature sender -G93- are secured to the valve body.

q	If the solenoid valves are wired with a conductor strip, the conductor strip may be removed and installed separately → Chapter.

q	Components are checked by self-diagnosis

6 -	Multifunction switch -F125-

q	Location and removing and installing → Fig.

q	Checked by self-diagnosis

7 -	Vehicle speed sender -G68-

q	Location and removing and installing → Fig.

q	Checked by self-diagnosis

8 -	Throttle valve potentiometer -G69-

q	Location → Fig.

q	Removing and installing → Rep. Gr.24 or → Rep. Gr.25

q	The signal of throttle valve potentiometer is checked by self-diagnosis.

q

For vehicles beginning 01.93 with 6-cylinder engines or Simos ignition and injection systems, the signal from the throttle valve potentiometer is transmitted via the engine control unit to the gearbox control unit. The signal can only be checked in measured value block → Chapter. If the throttle valve potentiometer is indicated as a fault, always carry out self-diagnosis of the engine control unit → Repair group 01 for relevant engine code.

q	Carry out basic settings after repairs → Chapter.

9 -	Selector lever lock solenoid -N110-

q	Location → Fig.

q	Removing and installing → Chapter, Repairing selector mechanism

q	Can be checked in measured value block → Chapter and in electrical check → Chapter.

10 -	Cruise control system switch -E45-

q	Location → Fig.

q	Removing and installing → Repair group 94; Repairing steering column switch

q	Can be checked in measured value block → Chapter

11 -	Kickdown switch -F8-

q	Location → Fig.

q	When removing and installing kickdown switch, remove and install throttle cable and then adjust afterwards

q	Adjusting throttle cable → Rep. Gr.20

q	Can be checked in measured value block → Chapter and in electrical check → Chapter.

12 -	Brake light switch -F-

q	Location → Fig.

q	Removing and installing → Running gear; Rep. Gr.47

q	Can be checked in measured value block → Chapter and in electrical check → Chapter.

13 -	Program switch -E122-

q	Location and removing and installing → Fig.

q	May be installed as touch switch or rotary switch

q	Touch switch and rotary switch may not be interchanged

q	Can be checked in measured value block → Chapter and in electrical check → Chapter.

q	Not present in vehicles with electronic program switch for gearboxes → Chapter

14 -	Starter inhibitor and reversing light relay -J226-

q	Location → Fig.

Location of automatic gearbox control unit -J217- ► 12.92 The control unit -arrow- is located in front of the right seat under the cover in footwell (shown without seat for greater clarity). Removing and installing control unit –  Loosen carpet and raise with cover. –  Release multi-pin connector by pulling back retaining bar and pull off of control unit. –  Remove automatic gearbox control unit -J217-. Install in reverse order of removal.

Automatic gearbox control unit -J217- 01.93 ► Location: control unit -arrow- is located under rear seat bench beginning 01.93. Removing and installing control unit (Control unit with 38-pin connector) –  Tip up rear seat bench. –  Release multi-pin connector by pulling back retaining bar and pull off of control unit. –  Remove control unit. Install in reverse order of removal.

Removing automatic gearbox control unit -J217- with 68-pin connector –  Release multi-pin connector and then pull connector off control unit. –  Remove control unit.

Installing automatic gearbox control unit -J217- with 68-pin connector –  Push multi-pin connector onto pins -arrows- of automatic gearbox control unit -J217- and lock multi-pin connector.

Engine control unit Location: control unit is located in plenum chamber on right. → Repair group 24 or → Repair group 25

Valve body Location: valve body is located beneath ATF pan. Removing and installing valve body → Chapter If the solenoid valves are wired with a conductor strip, the conductor strip may be removed and installed separately. Removing and installing conductor strip with gearbox oil temperature sender -G93- → Chapter

Multifunction switch -F125- Location: the multifunction switch is located on rear of gearbox. Removing and installing multifunction switch -F125- –  Pull connector off multifunction switch. –  Remove bolt and retainer. –  Remove multifunction switch. –  Renew O-ring. Install in reverse order of removal. –  Tighten bolt to 10 Nm.

Vehicle speed sender -G68- Location: the vehicle speed sender -G68- is located on top of the gearbox. Removing and installing vehicle speed sender -G68- –  Pull connector off sender. –  Remove bolt and pull sender out. Install in reverse order of removal. –  Tighten bolt to 10 Nm.

Throttle valve potentiometer -G69- Location: the throttle valve potentiometer -G69- is located on the throttle valve housing (engine). Construction depends on engine. Removing and installing throttle valve potentiometer -G69- Removal and installation are described according to engine codes in the respective repair group “Injection and ignition systems” → Repair group 24. or → Repair group 25.

Selector lever lock solenoid -N110- Location: the selector lever lock solenoid -N110- is located on the selector lever. Removing and installing selector lever lock solenoid -N110- Repair selector mechanism → Chapter.

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

Kickdown switch -F8- Location: the kickdown switch -F8--arrow- is integrated into accelerator cable and is located on bulkhead in engine compartment. Removing and installing kickdown switch -F8- –  When removing and installing kickdown switch, remove and install throttle cable and then adjust afterwards → Rep. Gr.20

Brake light switch -F- Location: the brake light switch -F--arrow- is located on brake pedal cluster Removing and installing brake light switch -F- → Running gear; Rep. Gr.47.

Program switch -E122- Location: the program switch -E122--arrow- is located in centre console in cover with selector indicator. Removing and installing program switch -E122- –  Remove selector lever handle. –  Remove cover with cover strip. –  Pull connector off program switch and unclip program switch from cover. Install in reverse order of removal. –  Tighten bolt to 1.5 Nm.

Starter inhibitor and reversing light relay -J226- The starter inhibitor and reversing light relay -J226- is located on the additional relay carrier under dash panel on left. The starter inhibitor and reversing light relay -J226- is identified with number “150”-arrow-.