ECU LAND ROVER DISCOVERY 2002 Workshop Manual

SUNROOF
76-6-16 REPAIRS
Refit
1.Check sunroof motor timing notch (A) aligns
with edge of microswitch (B). If motor is out of
alignment, rotate counting wheel (C) to correct
position using an Allen key.
2.Ensure sunroof drive cables are in fully closed
position.
3.Fit motor to sunroof frame.
4.Fit Torx screws securing motor to sunroof tray
and tighten to 2 Nm (1.5 lbf.ft).
5.Connect sunroof motor multiplug.
6.Fit interior trim:
lFor front sunroof motor, fit front stowage
pocket.

+ INTERIOR TRIM COMPONENTS,
REPAIRS, Stowage pocket - front.
lFor rear sunroof motor, fit headlining.

+ INTERIOR TRIM COMPONENTS,
REPAIRS, Headlining.
Drive cable assembly
$% 76.84.09
This procedure is applicable to the drive cable
assembly of both sunroofs.
Remove
1.Remove sunroof:
lFor front drive cable assembly:

+ SUNROOF, REPAIRS, Sunroof -
front.
lFor rear drive cable assembly:

+ SUNROOF, REPAIRS, Sunroof -
rear.
2.Position sunroof assembly on suitable work
bench.
3.Remove 4 Torx screws securing glass to
sunroof frame.
4.Remove sunroof glass.
5.Release both glass carriers from cables and
remove.

SUNROOF
REPAIRS 76-6-17
6.Remove 10 Torx screws securing frame to
drive cable assembly.
7.Remove drive cable assembly from frame.
Refit
1.Fit drive cable assembly to frame.
2.Fit Torx screws securing frame to drive cable
assembly and tighten to 2.5 Nm (1.8 lbf.ft).
3.Fit glass carriers to cables.
4.Fit glass to sunroof frame and secure with Torx
screws. Do not fully tighten screws at this
stage.
5.Fit sunroof.
lFor front drive cable assembly:

+ SUNROOF, REPAIRS, Sunroof -
front.
lFor rear drive cable assembly:

+ SUNROOF, REPAIRS, Sunroof -
rear.
6.Remove timing pegs supplied with drive cables.
7.Adjust position of sunroof glass in relation to
sunroof panel until a 6.5 mm (0.25 in) gap is
produced between the front edge of the glass
and the sunroof frame.
8.Tighten sunroof glass retaining screws to 3 Nm
(2.2 lbf.ft).
Switch pack - sunroof
$% 76.84.44
Remove
1.Release switch pack from front stowage
pocket.
2.Disconnect multiplugs from 3 sunroof
switches.
3.Remove switches from switch pack.
Refit
1.Fit switches to switch pack.
2.Connect multiplugs to switches.
3.Fit switch pack to front stowage pocket.

SUNROOF
76-6-18 REPAIRS
ECU - sunroof
$% 76.84.46
Remove
1.Remove front stowage pocket.

+ INTERIOR TRIM COMPONENTS,
REPAIRS, Stowage pocket - front.
2.Remove 2 screws securing ECU to roof.
3.Disconnect 2 multiplugs from ECU.
4.Remove sunroof ECU.
Refit
1.Position sunroof ECU and connect multiplugs.
2.Fit and tighten screws securing ECU to roof.
3.Fit front stowage pocket.

+ INTERIOR TRIM COMPONENTS,
REPAIRS, Stowage pocket - front.

PANEL REPAIRS
77-2-14 PROCEDURES
Electronic control units
The electronic control units (ECU) fitted to vehicles make it advisable to follow suitable precautions prior to carrying
out welding repair operations. Harsh conditions of heat and vibration may be generated during these operations which
could cause damage to the units.
In particular, it is essential to follow the appropriate precautions when disconnecting or removing the airbag DCU.
Supplementary Restraint System Precautions
Any work undertaken which involves the removal or replacement of any item of the Supplementary Restraint System
(SRS), requires extreme caution and the appropriate precautions must be followed.

+ GENERAL INFORMATION, Supplementary Restraint System Precautions.
Equipment
Prior to commencing any test procedure on the vehicle, ensure that the relevant test equipment is working correctly
and any harness or connectors are in good condition. This particularly applies to electronic control units.

PANEL REPAIRS
REPAIRS 77-2-21
REPAIRS
Front bulkhead assembly
Remove
1.Disconnect both battery leads, negative lead
first.
2.Disconnect leads/multiplug from alternator.
3.Remove front wing.

+ EXTERIOR FITTINGS, REPAIRS,
Wing - front - up to 03MY.
4.Remove washer reservoir.

+ WIPERS AND WASHERS, REPAIRS,
Reservoir - washer - up to 03MY.
5. Models with A/C: Remove condensor.

+ AIR CONDITIONING, REPAIRS,
Condenser.
6. Diesel models: Remove gearbox fluid cooler.
7.Remove RH and LH headlamps.

+ LIGHTING, REPAIRS, Headlamp - up
to 03MY.
8.Release headlamp levelling motors and
position aside.
9.Release headlamp wiring and position aside.
10.Remove battery.

+ CHARGING AND STARTING,
REPAIRS, Battery.
11.Remove battery tray.
12.Remove air filter assembly.

+ ENGINE MANAGEMENT SYSTEM -
Td5, REPAIRS, Air filter assembly.

+ ENGINE MANAGEMENT SYSTEM -
V8, REPAIRS, Air cleaner assembly.
13.Remove 2 earth leads from LH of front
bulkhead.
14.Remove RH horn.

+ ALARM SYSTEM AND HORN,
REPAIR, Vehicle horn.
15. Models with A/C: Release and remove A/C
pipes.
16.Remove RH and LH crush cans.
17.Remove bonnet release cable.
18.Support bonnet in open position
19.Remove bonnet locking mechanism.
20.Remove VIN plate.
21.Remove 2 bolts securing front bulkhead
assembly to chassis.
22.Remove centre braces.Repair
1.Remove existing panel(s), prepare panel joint
faces and install new panel(s) in accordance
with Panel Replacement Procedure. Punch or
drill holes in new panel for plug welding as
shown.
Refit
1.Fit centre braces.
2.Fit 2 bolts securing bulkhead to chassis and
tighten to 45 Nm (33 lbf.ft).
3.Fit VIN plate.
4.Fit bonnet locking mechanism.
5.Fit bonnet release cable.
6.Fit crush cans.
7. Models with A/C: Fit A/C pipes.
8.Fit RH horn.

+ ALARM SYSTEM AND HORN,
REPAIR, Vehicle horn.
9.Fit 2 earth leads to LH of front bulkhead.
10.Fit air filter assembly.

+ ENGINE MANAGEMENT SYSTEM -
Td5, REPAIRS, Air filter assembly.

+ ENGINE MANAGEMENT SYSTEM -
V8, REPAIRS, Air cleaner assembly.
11.Fit battery tray.
12.Fit battery. Do not connect leads.

+ CHARGING AND STARTING,
REPAIRS, Battery.
13.Fit headlamp wiring and headlamp levelling
motors.
14.Fit RH and LH headlamps.

+ LIGHTING, REPAIRS, Headlamp - up
to 03MY.
15. Diesel models: Fit gearbox fluid cooler.
16. Models with A/C: Fit condensor.

+ AIR CONDITIONING, REPAIRS,
Condenser.
17.Fit washer reservoir.

+ WIPERS AND WASHERS, REPAIRS,
Reservoir - washer - up to 03MY.

PANEL REPAIRS
REPAIRS 77-2-23
Repair
1.Remove existing panel(s), prepare panel joint
faces and install new panel(s) in accordance
with Panel Replacement Procedure. Punch or
drill holes in new panel for plug welding as
shown.
Refit
1.Fit centre braces.
2.Fit VIN plate.
3.Fit bonnet locking mechanism.
4.Fit bonnet release cable.
5.Fit RH horn.

+ ALARM SYSTEM AND HORN,
REPAIR, Vehicle horn.
6.Fit air filter assembly.

+ ENGINE MANAGEMENT SYSTEM -
Td5, REPAIRS, Air filter assembly.

+ ENGINE MANAGEMENT SYSTEM -
V8, REPAIRS, Air cleaner assembly.
7.Fit battery tray.
8.Fit battery. Do not connect leads.

+ CHARGING AND STARTING,
REPAIRS, Battery.
9.Fit headlamp wiring.
10.Fit RH and LH repeater lamps.

+ LIGHTING, REPAIRS, Lamp - front
repeater.
11.Fit RH and LH headlamps.

+ LIGHTING, REPAIRS, Headlamp - up
to 03MY.
12. Diesel models: Fit gearbox fluid cooler.
13. Models with A/C: Fit condensor.

+ AIR CONDITIONING, REPAIRS,
Condenser.
14.Fit bumper assembly.

+ EXTERIOR FITTINGS, REPAIRS,
Bumper assembly - front.
15.Connect leads/multiplug to alternator.
16.Connect battery leads, negative lead last.
Front cross member
Remove
1.Disconnect both battery leads, negative lead
first.
2.Disconnect leads/multiplug from alternator.
3.Remove washer reservoir.

+ WIPERS AND WASHERS, REPAIRS,
Reservoir - washer - up to 03MY.
4. Models with A/C: Remove condensor.

+ AIR CONDITIONING, REPAIRS,
Condenser.
5. Diesel models: Remove gearbox fluid cooler.
6.Remove RH and LH headlamps.

+ LIGHTING, REPAIRS, Headlamp - up
to 03MY.
7.Release headlamp levelling motors and
position aside.
8.Release headlamp wiring and position aside.
9.Remove RH horn.

+ ALARM SYSTEM AND HORN,
REPAIR, Vehicle horn.
10. Models with A/C: Release and remove A/C
pipes.
11.Remove RH and LH crush cans.
12.Remove 2 bolts securing front bulkhead
assembly to chassis.
13.Remove centre braces.
Repair
1.Remove existing panel(s), prepare panel joint
faces and install new panel(s) in accordance
with Panel Replacement Procedure. Punch or
drill holes in new panel for plug welding as
shown.

PANEL REPAIRS
77-2-24 REPAIRS
Refit
1.Fit centre braces.
2.Fit 2 bolts securing bulkhead to chassis and
tighten bolts to 45 Nm (33 lbf.ft).
3.Fit crush cans.
4. Models with A/C: Fit A/C pipes.
5.Fit RH horn.

+ ALARM SYSTEM AND HORN,
REPAIR, Vehicle horn.
6.Fit headlamp wiring and headlamp levelling
motors.
7.Fit RH and LH headlamps.

+ LIGHTING, REPAIRS, Headlamp - up
to 03MY.
8. Diesel models: Fit gearbox fluid cooler.
9. Models with A/C: Fit condensor.

+ AIR CONDITIONING, REPAIRS,
Condenser.
10.Fit washer reservoir.

+ WIPERS AND WASHERS, REPAIRS,
Reservoir - washer - up to 03MY.
11.Connect leads/multiplug to alternator.
12.Connect battery leads, negative lead last.
Headlamp mounting panel - RH
Remove
1.Disconnect both battery leads, negative lead
first.
2.Disconnect leads/multiplug from alternator.
3.Remove front bumper assembly.

+ EXTERIOR FITTINGS, REPAIRS,
Bumper assembly - front.
4. Models with A/C: Remove condensor.

+ AIR CONDITIONING, REPAIRS,
Condenser.
5. Diesel models: Remove gearbox fluid cooler.
6.Remove RH headlamp.

+ LIGHTING, REPAIRS, Headlamp - up
to 03MY.
7.Remove RH repeater lamp.

+ LIGHTING, REPAIRS, Lamp - front
repeater.
8.Release headlamp levelling motor and position
aside.
9.Release headlamp wiring and position aside.
10.Remove battery and battery tray.

+ CHARGING AND STARTING,
REPAIRS, Battery.
11.Remove horn.

+ ALARM SYSTEM AND HORN,
REPAIR, Vehicle horn.
12.Remove RH crush can.
13.Remove 2 bolts securing front bulkhead
assembly to chassis.
14.Remove RH centre brace.

PANEL REPAIRS
REPAIRS 77-2-25
Repair
1.Remove existing panel(s), prepare panel joint
faces and install new panel(s) in accordance
with Panel Replacement Procedure. Punch or
drill holes in new panel for plug welding as
shown.
Refit
1.Fit centre brace.
2.Fit 2 bolts securing bulkhead to chassis and
tighten bolts to 45 Nm (33 lbf.ft).
3.Fit crush can.
4. Models with A/C: Fit A/C pipes.
5.Fit horn.

+ ALARM SYSTEM AND HORN,
REPAIR, Vehicle horn.
6.Fit battery and battery tray. Do not connect
leads.

+ CHARGING AND STARTING,
REPAIRS, Battery.
7.Fit headlamp wiring and headlamp levelling
motors.
8.Fit repeater lamp.

+ LIGHTING, REPAIRS, Lamp - front
repeater.9.Fit headlamp.

+ LIGHTING, REPAIRS, Headlamp - up
to 03MY.
10. Diesel models: Fit gearbox fluid cooler.
11. Models with A/C: Fit condensor.

+ AIR CONDITIONING, REPAIRS,
Condenser.
12.Fit bumper assembly.

+ EXTERIOR FITTINGS, REPAIRS,
Bumper assembly - front.
13.Connect leads/multiplug to alternator.
14.Connect battery leads, negative lead last.
M77 1741A

PANEL REPAIRS
77-2-26 REPAIRS
Headlamp mounting panel - LH
Remove
1.Disconnect both battery leads, negative lead
first.
2.Disconnect leads/multiplug from alternator.
3.Remove washer reservoir.

+ WIPERS AND WASHERS, REPAIRS,
Reservoir - washer - up to 03MY.
4. Models with A/C: Remove condensor.

+ AIR CONDITIONING, REPAIRS,
Condenser.
5. Diesel models: Remove gearbox fluid cooler.
6.Remove headlamp.

+ LIGHTING, REPAIRS, Headlamp - up
to 03MY.
7.Remove repeater lamp.

+ LIGHTING, REPAIRS, Lamp - front
repeater.
8.Release headlamp levelling motor and position
aside.
9.Release headlamp wiring and position aside.
10.Remove air filter assembly.

+ ENGINE MANAGEMENT SYSTEM -
Td5, REPAIRS, Air filter assembly.

+ ENGINE MANAGEMENT SYSTEM -
V8, REPAIRS, Air cleaner assembly.
11.Remove 2 earth leads from LH of front
bulkhead.
12.Release and remove A/C pipes.
13.Remove crush can.
14.Remove bonnet release cable.
15.Remove 2 bolts securing front bulkhead
assembly to chassis.
16.Remove centre brace.Repair
1.Remove existing panel(s), prepare panel joint
faces and install new panel(s) in accordance
with Panel Replacement Procedure. Punch or
drill holes in new panel for plug welding as
shown.
Refit
1.Fit centre brace.
2.Fit 2 bolts securing bulkhead to chassis and
tighten bolts to 45 Nm (33 lbf.ft).
3.Fit bonnet release cable.
4.Fit crush can.
5. Models with A/C: Fit A/C pipes.
6.Fit 2 earth leads to LH of front bulkhead.
7.Fit air filter assembly.

+ ENGINE MANAGEMENT SYSTEM -
Td5, REPAIRS, Air filter assembly.

+ ENGINE MANAGEMENT SYSTEM -
V8, REPAIRS, Air cleaner assembly.
8.Fit battery tray.
9.Fit headlamp wiring and headlamp levelling
motors.
10.Fit repeater lamp.

+ LIGHTING, REPAIRS, Lamp - front
repeater.

PANEL REPAIRS
REPAIRS 77-2-29
Valance upper assembly - RH
In this procedure, the front wing and the valance
outer reinforcement are replaced in conjunction with
the RH valance upper assembly.
Remove
1.Disconnect both battery leads, negative lead
first.
2.Disconnect leads/multiplug from alternator.
3.Remove front wing.

+ EXTERIOR FITTINGS, REPAIRS,
Wing - front - up to 03MY.
4.Remove battery.

+ CHARGING AND STARTING,
REPAIRS, Battery.
5.Remove battery tray.
6.Remove fuse box.
7.Release expansion tank from fixings and
position aside.
8.Release harness from valance and position
aside.
Repair
1.Remove existing panel(s), prepare panel joint
faces and install new panel(s) in accordance
with Panel Replacement Procedure. Punch or
drill holes in new panel for plug welding as
shown.Refit
1.Fit harness to valance.
2.Fit and secure expansion tank to fixings.
3.Fit fuse box.
4.Fit battery tray.
5.Fit battery.

+ CHARGING AND STARTING,
REPAIRS, Battery.
6.Fit front wing.

+ EXTERIOR FITTINGS, REPAIRS,
Wing - front - up to 03MY.
7.Connect leads/multiplug to alternator.
8.Connect battery leads, negative lead last.
M77 1692A
M77 1750