ECU LAND ROVER DISCOVERY 1999 Workshop Manual

BRAKES
70-42 REPAIRS
Servo - brake
$% 70.50.01
Remove
1.Remove brake master cylinder.

+ BRAKES, REPAIRS, Master cylinder
- brake.
2.Disconnect vacuum pipe from servo.
3.Release spring clip securing servo push-rod to
brake pedal and release pedal.
4.Remove 2 flanged nuts securing servo to
bulkhead.
5.Remove brake servo. Refit
1.Clean servo and mating faces,
2.Position servo and tighten nuts to 25 Nm (18
lbf. ft).
3.Position brake pedal to servo push-rod and
secure with spring clip.
4.Connect vacuum pipe to servo.
5.Fit brake master cylinder.
+ BRAKES, REPAIRS, Master cylinder
- brake.

BRAKES
REPAIRS 70-43
Vacuum pump - servo
$% 70.50.19
Remove
1.Remove auxiliary drive belt.

+ CHARGING AND STARTING,
REPAIRS, Belt - auxiliary drive.
2.Release cover and remove nut securing lead
to alternator.
3.Disconnect alternator multiplug.
4.Remove bolt (LH thread) and remove auxiliary
drive belt tensioner. 5.Remove bolt securing support stay to
alternator.
6.Release clip and disconnect oil drain hose from
vacuum pump.
7.Disconnect vacuum pump oil supply pipe from
cylinder head and discard 'O' ring.
8.Remove bolt securing alternator and release
from mounting bracket.
9.Disconnect vacuum hose from vacuum pump.
10.Remove alternator. Take care not to damage
radiator cooling fins.
11.Remove 4 bolts, and remove vacuum pump
from alternator.
CAUTION: Always fit plugs to open
connections to prevent contamination.

BRAKES
70-44 REPAIRS
Refit
1.Clean mating faces of alternator and vacuum
pump.
2.Fit vacuum pump to alternator and tighten
bolts to 8 Nm (6 lbf.ft).
3.Position alternator to engine and connect
multiplug.
4.Connect vacuum hose and oil drain hose to
vacuum pump and secure clips.
5.With assistance align alternator to mounting
bracket and fit but do not tighten bolt.
6.Fit bolt securing support stay to alternator and
tighten to 25 Nm (18 lbf.ft) .
7.Tighten bolt securing alternator to mounting
bracket to 45 Nm (33 lbf.ft).
8.Using new 'O' ring, connect oil supply pipe to
cylinder head and tighten to 10 Nm (7 lbf.ft).
9.Connect lead to alternator and tighten nut to 6
Nm (4.4 lbf.ft).
10.Fit auxiliary drive belt tensioner and tighten bolt
to 50 Nm (37 lbf.ft).
11.Fit auxiliary drive belt.

+ CHARGING AND STARTING,
REPAIRS, Belt - auxiliary drive.

BRAKES
REPAIRS 70-47
ECU - Self levelling and anti locking
brakes (SLABS)
$% 70.65.01
Remove
1.Remove BCU.

+ BODY CONTROL UNIT, REPAIRS,
Body control unit (BCU).
2.Remove 5 multiplugs from SLABS ECU.
3.Remove multiplug from ACE ECU.
4.Remove lower nut and loosen upper nut
securing SLABS and ACE ECU bracket to
body.
5.Remove ECU's and bracket assembly. 6.Remove 4 nuts securing SLABS ECU and
remove ECU.
Refit
1.Fit new SLABS ECU to bracket and secure with
nuts.
2.Fit ECU's and bracket assembly to body and
secure with nuts.
3.Connect multiplugs to ACE ECU and SLABS
ECU.
4.Fit BCU.

+ BODY CONTROL UNIT, REPAIRS,
Body control unit (BCU).
5.Programme the new SLABS ECU using
TestBook.

BRAKES
REPAIRS 70-49
Modulator unit - ABS
$% 70.65.49
Remove
1.Position cloth under modulator to absorb fluid
spillage.
CAUTION: Brake fluid will damage paint
finished surfaces. If spilled, immediately
remove fluid and clean area with water.
2.Disconnect 3 multiplugs from ABS modulator.
3.Disconnect 2 inlet brake pipe unions from pump
side of modulator.
CAUTION: Always fit plugs to open
connections to prevent contamination.
4.Disconnect 4 outlet brake pipe unions from top
of modulator.
CAUTION: Always fit plugs to open
connections to prevent contamination.
5.Loosen 3 nuts securing modulator to mounting
bracket.
6.Release and remove modulator from mounting
bracket.
7.Remove 3 mounting rubbers from modulator. Refit
1.Position mounting rubbers to modulator.
2.Position modulator to mounting bracket,
tighten nuts to 9 Nm (7 lbf.ft).
3.Clean brake pipe unions.
4.Connect brake pipe unions to modulator
ensuring pipes are connected to their correct
ports.
5.Tighten 13 mm unions to 22 Nm (16 lbf.ft) and
11 mm unions to 14 Nm (10 lbf.ft).
6.Connect multiplugs to modulator.
7.Bleed brakes.

+ BRAKES, ADJUSTMENTS, Brake
system bleeding.
8.To ensure correct operation, the ABS system
MUST be tested using TestBook.

BRAKES
70-50 REPAIRS
Switch - Hill descent control
$% 70.70.11
Remove
1.Carefully remove switch.
2.Disconnect multiplug from switch.
3.Remove switch.
Refit
1.Connect multiplug switch.
2.Position switch and push to secure.
Switch - handbrake
$% 86.65.45
Remove
1.Remove centre console.

+ INTERIOR TRIM COMPONENTS,
REPAIRS, Console - centre - automatic
models.

+ INTERIOR TRIM COMPONENTS,
REPAIRS, Console - centre - manual
models.
2.Disconnect Lucar from handbrake warning
switch.
3.Remove clip and clevis pin securing cable to
handbrake lever.
4.Remove 2 bolts and remove handbrake lever.
5.Remove 2 screws securing switch to
handbrake lever and remove switch.
Refit
1.Fit switch to handbrake lever and tighten
screws.
2.Position handbrake lever to floor and tighten
bolts to 22 Nm (16 lbf.ft).
3.Align cable to handbrake lever and fit clevis pin
and clip.
4.Connect Lucar to handbrake switch.
5.Fit centre console.

+ INTERIOR TRIM COMPONENTS,
REPAIRS, Console - centre - automatic
models.

+ INTERIOR TRIM COMPONENTS,
REPAIRS, Console - centre - manual
models.

RESTRAINT SYSTEMS
REPAIRS 75-13
REPAIRS
Seat belt - front
$% 76.73.13
Remove
1.Remove 'B' post lower trim casing.

+ INTERIOR TRIM COMPONENTS,
REPAIRS, Trim casing - lower - 'B' post.
2.Remove bolt securing seat belt to front seat.
3.Remove bolt securing seat belt reel to 'B' post.
4.Remove seat belt upper anchorage nut.
5.Remove seat belt.
Refit
1.Fit seat belt upper anchorage and tighten nut to
32 Nm (24 lbf.ft).
2.Fit seat belt reel to 'B' post and tighten bolt to 50
Nm (37 lbf.ft).
3.Fit seat belt to front seat and tighten bolt to 32
Nm (24 lbf.ft).
4.Fit 'B' post lower trim casing.

+ INTERIOR TRIM COMPONENTS,
REPAIRS, Trim casing - lower - 'B' post.
Seat belt - rear - centre
$% 76.73.20
Remove
1.Carefully pull front carpet away from RH rear
seat base to gain access to mounting brackets.
2.Remove 2 front Torx bolts securing RH rear
seat to floor.
3.Recline and fold RH rear seat.
4.Remove 2 rear Torx bolts securing RH rear
seat to floor.
5.Remove RH rear seat.

RESTRAINT SYSTEMS
75-14 REPAIRS
6.Remove 11 clips securing seat back finisher to
RH rear seats.
7.Remove seat back finisher.
8.Remove 15 clips securing seat base finisher to
RH rear seats.
9.Remove seat base finisher. 10.Remove bolt securing seat belt lower
anchorage to frame of RH rear seats.
11.Remove 2 screws securing guide cover to RH
rear seats
12.Remove guide cover.
13.Remove bolt securing seat belt reel to frame of
RH rear seats.
14.Remove seat belt.
Refit
1.Fit seat belt reel and tighten bolt to 32 Nm (24
lbf.ft).
2.Position seat belt through guide on top of RH
rear seats.
3.Fit seat belt lower anchorage to frame of seats
and tighten bolt to 32 Nm (24 lbf.ft).
4.Position guide cover to RH rear seats and
secure with screws.
5.Position seat base finisher to RH rear seats and
secure with clips.
6.Position seat back finisher to RH rear seats and
secure with clips.
7.Position RH rear seats and secure rear
mounting brackets to floor with Torx bolts
tightened to 45 Nm (33 lbf.ft).
8.Put RH rear seats in upright position and
secure front mounting brackets to floor with
Torx bolts tightened to 45 Nm (33 lbf.ft).
9.Position front carpet.

RESTRAINT SYSTEMS
REPAIRS 75-15
Seat belt - rear - side
$% 76.73.23
Remove
1.Remove 'D' post trim casing.

+ INTERIOR TRIM COMPONENTS,
REPAIRS, Trim casing - 'D' post.
2.Remove loadspace side trim casing.

+ INTERIOR TRIM COMPONENTS,
REPAIRS, Trim casing - side - loadspace.
3.Remove cap from seat belt lower anchorage
bolt.
4.Remove lower anchorage bolt.
5.Remove cover from seat belt upper anchorage
bolt.
6.Remove upper anchorage bolt.
7.Remove bolt securing seat belt reel to body.
8.Remove seat belt.
Refit
1.Fit seat belt reel to body and tighten bolt to 32
Nm (24 lbf.ft).
2.Fit seat belt upper anchorage to body and
tighten bolt to 50 Nm (37 lbf.ft).
3.Fit cover to upper anchorage bolt.
4.Fit seat belt lower anchorage to body and
tighten bolt to 32 Nm (24 lbf.ft).
5.Fit cap to lower anchorage bolt.
6.Fit loadspace side trim casing.

+ INTERIOR TRIM COMPONENTS,
REPAIRS, Trim casing - side - loadspace.
7.Fit 'D' post trim casing.

+ INTERIOR TRIM COMPONENTS,
REPAIRS, Trim casing - 'D' post.

RESTRAINT SYSTEMS
75-16 REPAIRS
Mounting - seat belt - 'B' post
$% 76.73.26
Remove
1.Release front door aperture seal from 'B' post.
2.Release rear door aperture seal from 'B' post.
3.Release clip securing upper 'B' post trim.
4.Remove 'B' post upper trim.
5.Remove nut securing seat belt upper
anchorage to mounting. 6.Remove 2 Torx bolts securing mounting to 'B'
post.
7.Remove mounting.
Refit
1.Fit mounting to 'B' post and tighten Torx bolts to
22 Nm (16 lbf.ft).
2.Fit seat belt upper anchorage to mounting and
tighten nut to 32 Nm (24 lbf.ft).
3.Secure trim casing to 'B' post with clip.
4.Fit front and rear door aperture seals to 'B'
post.