Content .. 80 81 82 83 ..

Lotus Eleven/Elise/Exige. Manual - part 82

Page 23

Lotus Service Notes

Section MP

accessed from behind the lamp. Turn clockwise to adjust the beam to the right.

- To adjust the vertical aim of the main beam, adjust the dome headed screw at the lower outboard side

of the lamp, accessed from behind the lamp. Turn clockwise to raise the beam.

7. Repeat for the RH lamp.

8. Re-fit the cover/mask assemblies complete with edge seal to the body, and secure with the three socket

head screws and washers.

Headlamp Cover Seal

The headlamp cover/mask is sealed to the body aperture by an extruded synthetic moulding, supplied in

straight lengths. The seal needs to be cut to length to be a snug fit around the periphery of the lamp and the

two ends bonded together using a suitable adhesive such as Permabond C2 or similar. The seal is then fitted

to the headlamp cover with the narrower face uppermost, and with the longer leg of the lower face against the

mask.

Headlamp Units - '07 M.Y. Onwards

New headlamp assemblies introduced for '07 model year are unchanged in styling, but are redesigned

as sealed units to comply with legislative demands, and comprise main/dip/sidelamps with integral reflectors,

mask and cover. An optical feature in the centre of the cover is designed to gather refracted light and prevent

scatter above the dip beam cut off. Certain atmospheric conditions may result in some condensation inside

the lamp unit, but this should disperse with the lamps in operation and cause no concern.

The main beam lamp is mounted lowermost as previously, and uses a free-form reflector and 55W H7U

bulb. Above that is the projector type dip beam lamp with 55W H7U bulb, and at the top of the unit is the side/

parking lamp with W5W bulb, the latter function formerly incorporated into the main beam lamp. Each complete

lamp unit with hard coated polycarbonate cover is fitted to the body via a remodeled clamshell housing and is

secured by three M10 and one M6 fixing. Note that the clamshell construction renders retrofitment of the new

lamps to earlier models impracticable.

Access to the bulbs is available after removing the wheelarch liner front section, and then the appropriate

grommet over the main or dip beam bulbs. The alignment relationship between main and dip beam lamps is

fixed, but two cross-head adjusters are provided on the back of the headlamp housing by which the whole lamp

unit may be adjusted. The outboard screw adjusts vertical alignment, and the inboard screw horizontal.

Headlamp cover

Cover/mask seal

Body

Mask

b342

Vertical adjuster Lateral adjuster

Lateral adjuster High beam lamp

Low beam

Vertical adjuster lamp

m257

Page 24

Lotus Service Notes

Section MP

To remove a lamp unit from the car, remove the three M10 nuts and the single M6 nut securing the lamp

assembly to the clamshell. On re-assembly, note that the jointline between lamp and body may be optimised

via threaded collars on three of the lamp fixing studs.

Opposite Drive Hand Beam Masking: If the car is temporarily to be used in an opposite drive hand territory,

the dip beam bias should be masked to prevent dazzle. The '07 model year lamps incorporate a masking lever

within each dip beam lamp, accessible after removing the wheelarch liner front section and upper grommet.

The lever incorporates a slot for a small flat bladed screwdriver, but is located in one of four different sites

dependent on handing and market.

On RHD cars, the lever in both lamps should

be turned clockwise to mask. The lever turns

only a few degrees, requiring little force.

Applying too much force or movement will

damage the system. Feel for a slight click.

On LHD cars, the lever in both lamps should

be turned counterclockwise to mask. The

lever turns only a few degrees, requir-

ing little force. Applying too much force or

movement will damage the system. Feel for

a slight click.

Front Turn Lamps

For access to the front turn indicator bulb,

the lamp unit must be released from the body.

Using a suitable stiff rod, via an access hole in

the outer top corner of the air intake aperture,

push backwards the retaining clip at the front

corner of the turn lamp, and withdraw the lamp

from the body. Introduced for the '06 M.Y. was

a secondary security device in the form of an

'O' ring anchored to the crash structure and

looped through the lamp front retaining clip.

Twist the bulb holder counterclockwise to release from the lamp, and replace the bayonet fitting amber

bulb. After replacing the bulb and holder, fit the seal around the periphery of the lamp, and engage the lamp

unit top corner lip in the body aperture, before pressing the bottom corner until the spring clip is heard to en-

gage. Ensure the lamp is securely fitted by attempting to extract the lamp from above, which should not be

possible.

RELEASING FRONT

TURN LAMP

ohs117

RH LH

Masking lever

3°

m263

Page 25

Lotus Service Notes

Section MP

MP.11 - 2006 M.Y. SUPPLEMENT

Lotus Traction Control

Lotus Traction Control (LTC) is a software programme within the engine electronic control unit (ECU)

which uses inputs from the wheel speed sensors to determine the degree of wheelspin occurring, and when

necessary, modulate fuel injector delivery to control engine power output until grip is restored. If an LSD is

fitted, the LTC also operates to stabilise high speed vehicle behaviour under high cornering loads or extreme

manoeuvres.

An LTC tell tale is provided in the

instrument panel, and if this lamp, together

with the tell tale light in the LTC button (see

below) is seen to flicker, this is an indication

that traction control has been triggered and

electronic intervention is taking place; the

tractive limit has been reached and driving

style should be modified accordingly. If the

lamp is continuously lit, this is an indication

that the LTC has been manually switched off

(see below).

WARNING: The enhanced vehicle control that this feature provides should not induce any relaxation

of caution or vigilance by the driver. Physical limits of cornering and braking still apply, and excessive

speed may result in loss of control and an accident. The driver is at all times responsible for the

judgement of appropriate speed.

Lotus Traction Control ‘Off’ Button

In certain unusual circumstances, such

as loose surfaces, deep snow or when

‘rocking’ the vehicle free from mud, it may be

desirable temporarily to switch off the traction

control. An LTC ‘off’ button is provided on the

gear lever shroud, and should, with the ignition

switched on, be held pressed for 2 seconds.

Both the button tell tale and the LTC warning

lamp in the instrument panel will light up amber

to confirm system de-activation.

WARNING:

• When an LSD is fitted, Lotus Traction Control should always be active when driving on the public

highway in normal conditions.

• If the system is switched off when driving off-highway, be aware of the consequent change in

vehicle behaviour and modify driving style accordingly.

To re-activate LTC, press (momentarily) the button a second time and check that the tell tale lamps in both

the switch button and instrument panel go out. Irrespective of the system status when the ignition is turned off,

LTC will automatically be activated next time the ignition is switched on.

ECU Programming

The ECU progamming for '06 M.Y. cars includes Electronic Throttle Control (ETC) and Lotus Traction

Control (LTC), and may be identified by interrogation using the Scan tool; Non-USA: A120E0030H. USA:

A121E0010H.

In order for LTC to be operative, a new ECU must detect the presence of the LTC 'off' switch within the

first 5 ignition cycles. If no switch is detected (the switch does not need to be activated), the LTC programme

will be locked out indefinately, and can only be reset by Lotus Cars.

LTC tell tale (Euro shown)

LTC 'off'

button

ohs140c

Page 26

Lotus Service Notes

Section MP

As viewed from in front of Elise:

Fuse 1 Fuse 11

m255

Fuse 12 Fuse 22

Slot Rate Circuit

Supply

1 20A Aux. power socket

Battery

2 5A Reverse lamps

Ignition

3 20A Driver window

Ignition

4 20A Passenger window

Ignition

5 10A Stoplamps

Ignition

6 7.5A Turn indicators

Ignition

7 10A Ignition services

Ignition

8 7.5A Battery services

Battery

9 15A Hazard lamps

Battery

10 7.5A Horn

Battery

11 10A Alarm power, interior lamp

Battery

12 10A ABS

Ignition

13 3A ECU, starter switch,

Ignition

immobiliser

Slot Rate Circuit

Supply

14 20A Rad. fans;

Battery

1&2 slow, 1 fast

15 7.5A Radio, switch pack module

Battery

16 10A Sidelamps, rear fog

Battery

17 10A Dip beam LH

Battery

18 10A Dip beam RH

Battery

19 20A A.C. comp. relay,

Battery

rad fan 2 fast

20 15A Main beam LH

Battery

21 15A Main beam RH

Battery

22 7.5A CDL

Battery

m254

MAIN FUSEBOX

Fuses

Engine Compartment

Fuses and relays associated with the

engine management system are contained

in two 4-position fuse holders located at the

front of the engine bay on the cabin bulkhead,

adjacent to the engine ECM. To access the

fuses, unclip rear edge of the cover.

Fuse no. Rating

Circuit

Supply

20A

Fuel pump

Battery

Immobiliser

Battery

Alternator sense

Battery

ECU battery feed

Battery

O2 heaters

ECU

7.5A

VSV's VVT, VVL, IAC

ECU

10A

Injectors, ignition coils,

ECU

ECU main pwr, ac module

Re-circ. pump

ECU

ENGINE BAY FUSES

4 6

3 5

ohs136

Content .. 80 81 82 83 ..