Electric Window Lifts

��~[Electrically Window Lifts LHD:

WIRING DIAGRAM

Electric Window Lifts: Component Location:

COMPONENT LOCATION VIEW

Electric Window Lifts: Component ID:

COMPONENT ID
16 Rheostat, lighting for controls, on dashboard between the steering wheel and driver's door.
22A Fuse board behind the cover flap in the glove box.
164 Motor, left-hand electric window lift, in the left-hand front door.
165 Motor, right-hand electric window lift, in the right-hand front door.
190A Switch, left-hand rear door electric window lift, in the left-hand rear door.
191A Switch, right-hand rear door electric window lift, in the right-hand rear door.
193 Motor, left-hand rear door electric window lift, in the left-hand rear door.
194 Motor, right-hand rear door electric window lift, in the right-hand rear door.
231 Distribution terminal (+54 circuit) in main fuse box behind the glove box.
386 Switch, electric window lifts, on the centre console between the front seats.
514A Switch, simultaneous operation of central locking in 386.

2-Pin Connectors
H2-13 In the right-hand front door, beside the window lift.
H2-27 In the right-hand rear door, beside the window lift.
H2-35 In the left-hand front door, beside the locking mechanism.
H2-39 In the left-hand rear door, beside the locking mechanism.

10-Pin Connectors
H10-5 Under the left-hand seat.
H10-22 In right-hand B pillar.
H10-24 In left-hand B pillar.

22-Pin Connectors
H22-1 Behind the cable entry in the left- hand A pillar.
H22-2 Behind the cable entry in the righthand A pillar.

Grounding Points
G14 Grounding point, left-hand front seat member

DESCRIPTION OF OPERATION
All electric window lifts in the car can be operated using a switch on the centre console between the front seats. The window lifts in the rear doors can also under certain circumstances be operated using the switches in each door.
^ Switch 386 for operating the window lifts in the front doors is supplied with current via fuse 11.
^ Current is supplied via fuse 9 to switch 386 for operating the window lifts in the rear doors.
^ If the ON/OFF switch is closed (ON), the window lifts in the rear doors can also be operated from switch 190A in the left-hand rear door and switch 191A in the right-hand rear door.
^ If the ON/OFF switch is open (OFF), the switches on the rear doors will be inoperative. The window lifts in the rear doors can then be controlled only by means of switch 386 on the centre console.
^ Pressing the "window" symbol on one of the switches lowers the window. Pressing the part of the switch with no symbol rolls the window up.

Automatic Window Lift Control
The switches in the front doors are different to the other switches in that they have two positions to lower the window and one position to roll up the window.

DOWN Position 1: The window descends as long as the switch is held in this position. Positive current is supplied to motor 164 via pin 18 or to motor 165 via pin 6 on the switch.

DOWN Position 2: The window goes all the way down, even if the switches are released after a moment. The coil in the relays, integrated into the switch, is supplied with positive current and the relays operate. Due to a time-delay function in the relays, the supply of current is maintained until the window is completely open, even if the switch is released immediately. This function is cancelled by moving the switch to position 3.

UP: The window goes up as long as the switch is held in this position. Positive current is supplied to motor 164 via pin 19 or to motor 165 via pin 7 of the switch.

FAULT DIAGNOSIS HINTS
The electric window lifts can be operated when the ignition switch is in the Drive position.

A TIP
To avoid damaging the centre console, and to remove switch 386 from the centre console in the easiest possible way when taking readings, proceed as follows:
^ Where the cover part, the centre console and the carpet meet, there is a flap. If this is lifted slightly, a hand can be introduced under it to press out the switch from behind.

1. Check that fuses 9 and 11 are intact and supplied with current.
2. Check that current is supplied to pins 10 and 11 of switch 386.
3. Check that pins 18, 6,14 and 2 are supplied with current when the windows are lowered.
4. Check that pins 19, 7,13 and 1 are supplied with current when the windows are raised.
5. If the window lifts in the rear doors cannot be operated from the switches on the doors, check that current is supplied to pin 9 of the ON/OFF switch.
6. Check the operation of the switches on the rear doors by taking instrument readings on their electrical connections.
7. Check the connectors, wiring harness and ground connections.