Discovery 2. Manual — part 476

ENGINE MANAGEMENT SYSTEM - TD5

REPAIRS 18-1-47

REPAIRS

Engine control module (ECM)

$% 18.30.03

All replacement ECM's are configured for two track
TP sensors. When fitting replacement ECM to
vehicle with three track TP sensor, TestBook must be
used to configure ECM for three track TP sensor.

Remove

1. Release fixings and remove battery cover.
2. Disconnect battery earth lead.
3. Release retaining strap and remove vehicle

jack.

4. Remove screw, release ECM and disconnect 2

multiplugs.

5. Remove ECM.

Refit

1. Position new ECM and connect multiplugs.
2. Fit ECM and tighten screw.
3. Fit vehicle jack and secure retaining strap.
4. Connect battery earth lead.
5. Fit battery cover and secure with fixings.
6. Programme ECM using TestBook.

Sensor - engine coolant temperature
(ECT)

$% 18.30.10

Remove

1. Remove fixings and remove engine acoustic

cover.

2. Release fixings and remove cooling fan cowl.
3. Disconnect multiplug from ECT sensor.

4. Remove sensor from coolant outlet elbow and

discard sealing washer.

Refit

1. Clean ECT sensor and coolant outlet elbow

mating faces.

2. Fit new sealing washer to ECT sensor. Fit

sensor and tighten to 15 Nm (11 lbf.ft). Connect
multiplug.

3. Fit cooling fan cowl and secure with fixings.
4. Fit engine acoustic cover and secure with

fixings.

5. Top up cooling system.

+

MAINTENANCE, PROCEDURES,

Cooling system.

ENGINE MANAGEMENT SYSTEM - TD5

18-1-48 REPAIRS

Sensor - crankshaft (CKP)

$% 18.30.12

Remove

1. Disconnect multiplug from CKP sensor.

2. Remove bolt securing CKP sensor. Remove

CKP sensor from gearbox housing and discard
'O' ring.

3. If fitted:Remove and discard spacer.

Refit

1. Clean gearbox housing and CKP sensor.
2. If fitted:Fit new spacer.
3. Fit new 'O' ring, position CKP sensor to

gearbox housing and tighten bolt to 9 Nm (7
lbf.ft).

4. Connect multiplug to CKP sensor.

Air filter assembly

$% 19.10.01

Remove

1. Release turnbuckles and remove battery

cover.

2. Disconnect battery earth lead.

3. Remove 2 nuts and remove air intake duct.

4. Release 2 clips securing MAF sensor.
5. Release MAF sensor from air filter cover and

position aside.

ENGINE MANAGEMENT SYSTEM - TD5

REPAIRS 18-1-49

6. Release air filter from 3 grommets, remove

assembly and discard 'O' ring.

7. Remove 2 screws, remove AAP sensor and

discard 'O' ring.

Refit

1. Clean MAF sensor and air filter mating faces.
2. Fit new 'O' ring to air filter.
3. Clean AAP sensor.
4. Using new 'O' ring, fit AAP sensor and tighten

screws.

5. Position air filter assembly and secure in

grommets.

6. Position MAF sensor and secure clips.
7. Position intake duct to air filter and tighten nuts.
8. Connect battery earth lead.
9. Fit battery cover and secure with fixings.

Element - air filter

$% 19.10.10

Remove

1. Release 2 clips and disconnect MAF sensor

from air filter cover.

ENGINE MANAGEMENT SYSTEM - TD5

18-1-50 REPAIRS

2. Disconnect multiplug from AAP sensor.
3. Release 2 clips and remove cover from air

filter.

4. Remove air filter element.

Refit

1. Clean air filter body and cover.
2. Fit new air filter element.
3. Position air cleaner cover and secure clips.
4. Position MAF sensor and secure clips.
5. Connect multiplug to AAP sensor.

Sensor - fuel temperature

$% 19.22.08

Remove

1. Remove 3 bolts and remove engine acoustic

cover.

2. Release fixings and remove battery cover.
3. Disconnect battery earth lead.

4. Disconnect multiplug from fuel temperature

sensor.

5. Thoroughly clean area around fuel

temperature sensor before removal.

6. Remove fuel temperature sensor and discard

sealing washer.

Refit

1. Clean fuel temperature sensor mating faces.
2. Fit new sealing washer and tighten fuel

temperature sensor to 13 Nm (10 lbf.ft) .

3. Connect multiplug to fuel temperature sensor.
4. Connect battery earth lead.
5. Fit battery cover and secure fixings.
6. Fit engine acoustic cover, and secure with

fixings.