1998 JAGUAR X308 battery

Module Communications Network - Communications Network
Description and Operation
Fuse Boxes and Relays (LH Steering)

Parts List
There are six fuse box assemblies per vehicle, five of which have conventional, replaceable fuses. The High Power Protection
Module does not have conventional fuses, it comprises three 250 Amp fusible links to protect the starting circuit (two
connected in parallel) and the battery positive supply to the other fuse boxes.
Wiring Harnesses
ItemPart NumberDescription
1—Engine and Transmission Cont rol Module Compartment Relays (RH Steering opposite)
2—Front Firewall Relays
3—Front Seat Relays - Right Hand Side
4—Heelboard - Right Hand Side
5—High Power Protection Module
6—Trunk Fuse Box
7—Heelboard - Left Hand Side
8—Front Seat Relays - Left Hand Side
9—Engine Management Fuse Box
10—Engine Compartment Fuse Box
11—Engine Compartment Front Relays

Heelboard Fuse Box - Left hand side

Trunk Fuse Box
105Radio telephone, rear courtesy lamp/map light.
1120Air conditioning right-hand blower relay.
125In-car entertainment.
1325Right-hand rear door control module.
1425Cigar lighters.
1525Right-hand door control module.
16-Not used.
1715Sunroof.
1825Right-hand and left-hand seat heaters.
Fuse NoRating
(amps)Circuit
120Right-hand seat control module.
25Rear window switchpack, driver door key ba rrel, driver door switchpack and memory.
35Dimmer module.
45Diagnostic connector.
515Body processor module.
65Centre console switchpack, reader exciter ECM
715Body processor module (battery supply for solenoids, lamps and motors).
85Steering column adjust switch, driver seat switchpack.
910Radio/cassette head unit.
105Airbag/SRS
1120Air conditioning left-hand blower motor.
1210Door mirror heaters relay, air conditioning, blow er motor relays, power steering control module.
1325Left-hand rear window
1410Cruise control switch, instrument cluster, catalytic converter over temperature warning.
1525Left-hand door control module.
165Electrochromic interior mirror (where fitted), centre console switchpack, gear selector, traction control
switch illumination, J-gate mode switch illumination, pins A9 and D8 trunk fusebox.
1710Accessory supply.
185Instrument cluster.
Fuse Rating

Module Communications Network - Battery Junction Box (BJB)
Removal and Installation
Removal

1. Disconnect battery ground cable; refer to 86.15.19.

2. Remove cover from fuse box.
1. Release securing tangs.
2. Remove cover.

3. Remove positive supply power cable.
1. Displace cover.
2. Remove nut.
3. Disconnect cable.

4. Displace fuse box from mounting panel for access.
1. Release securing latch, upwards.
Release fuse box from mountin g panel by displacement
towards spare wheel.
5. Remove fuse box.
1. Identify and disconne ct harness connectors.

Installation




6. Remove fuses and relays.
1. Note position of each relay and remove them.
2. Identify each fu se and remove them.
The value and position of each fuse is illustrated on the lid
of the trunk compartment fuse box - for all fuse boxes on
the vehicle.
1. Installation is reverse of removal.
2. Reconnect battery ground cable; refer to 86.15.15.

Module Communications Network - Central Junction Box (CJB) Removal and Installation
Removal
Installation



1. Disconnect battery ground cable; refer to 86.15.19.
2. Remove heelboard trim panel.

3. Remove positive supply power cable and displace fuse box.
1. Displace cover.
Remove nut which secures posi tive cable to fuse box.
2. Disconnect cable.
3. Remove nuts.

4. Remove fuse box.
Identify and disconnect harness connectors.

5. Remove fuses and relay.
1. Remove relay.
2. Identify each fuse and remove them.
The value and position of each fuse is illustrated on the lid of the
trunk compartment fuse box - for all fuse boxes on the vehicle.
1. Installation is reverse of removal.
2. Reconnect battery ground cable; refer to 86.15.15.

Module Communications Network - Front Auxiliary Junction Box
Removal and Installation
Removal

1. Disconnect battery ground cable; refer to 86.15.19.
2. Open bonnet and fit body pa intwork protection sheets.

3. Remove positive supply power cable.
1. Displace cover.
2. Remove nut.
3. Disconnect cable.

4. Remove fuse box fro m mounting panel.
1. Release securing latch, upwards, displace fuse box
outwards and remove from mounting panel.
2. Release securing tangs and remove cover.

5. Remove fuse box.
1. Identify and disconne ct harness connectors.
6. Remove fuses and relays.

Installation


1. Note position of each relay and remove them.
2. Identify each fu
se and remove them.
The value and position of each fuse is illustrated on the lid
of the trunk compartment fuse box - for all fuse boxes on
the vehicle.
1. Installation is reverse of removal.
2. Reconnect battery ground cable; refer to 86.15.15.

Module Communications Network - Rear Auxiliary Junction Box
Removal and Installation
Removal

1. Disconnect battery ground cable; refer to 86.15.19.
2. Open bonnet and fit body pa intwork protection sheets.

3. Remove positive supply power cable.
1. Displace cover.
2. Remove nut.
3. Disconnect cable.

4. Remove fuse box fro m mounting panel.
1. Remove nuts.
Reposition fuse box for access to connectors.

5. Remove fuse box.
Identify and disconnect harness connectors.
6. Remove fuses and relay.