1994 JAGUAR XJ6 relay

Remedy: Fault:
Possible causes:
1. No power supply to lock relays.
Door lock/ unlock relays faulty.
Door locking / unlocking facility inoperative or faulty
2.
3. Door actuators faulty.
4. Keylock switches faulty.
5. Deadlock circuitry faulty.
6. Wiring harness or connectors faulty.
Remedy: 1.
2. Renew faulty relay.
3.
4.
5. See Deadlock fault Sub-Routine.
6.
Check fuse F1 in RH 'A' post base fusebox.
Renew door lock assembly complete.
Renew door lock assembly complete.
Examine and repair or renew faulty harness.
Fault Deadlocking facility inoperative or faulty (not NAS)
Possible causes: 1. No power supply to deadlock relays.
2. Deadlock relays faulty.
3. Deadlock status micro-switch faulty.
Remedy: 1.
2. Renew faulty relay.
3. Renew doorlock assembly complete.
Check
fuse
F1 in RH 'A' post base fusebox.

Security System - RESTRICTED lSSUE
Fault:
Possible causes:
Remedy: Fault:
Fault:
Possible causes:
Remedy:
Fault:
Possible causes:
Remedy: Intrusion
sensing inoperative
1. Faulty sensor.
2. Harness wiring or connectors faulty.
1. Renew sensor.
2. Examine and repair or renew faulty harness.
Inclination sensing inoperative
1. Faulty sensor.
2. Harness wiring or connectors faulty.
1. Renew sensor.
2. Examine and repair or renew faulty harness.
1.
2.
3.
4.
1.
2.
3.
4.
Fuel filler cap locking / unlocking faulty
No power to actuator relay.
Wiring harness or connectors faulty
Relay faulty
Actuator faulty.
Check fuse
F1 in RH 'A' post fuse box.
Examine and repair or renew faulty harness.
Renew relay.
Renew actuator.
Pan.; feature inoperative
1. Transmitter battery inoperative.
2. Rear screen aerial cable damaged / disconnected.
1. Renew battery.
2. Identify and repair aerial fault.
Fault: Central locking switch inoperative
Possible causes:
1. Harness wiring or connectors faulty.
2. Switch faulty.
Remedy: 1.
2. Renew switch.
Examine
and repair
or renew damaged harness.
X3OO VSM Issue 1 August 1994 22

Security System - RESTRICTED ISSUE 84
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Description
Security / Locking Control Module
Central locking switch
Front passenger door ajar switch
RH rear passenger door ajar switch
LH rear passenger door ajar switch
Driver's door ajar switch
Driver's door lock switch
Passenger's door lock switch
Driver's door unlock relay (NAS only)
Non
-deadlock shorting links (NAS only)
Front left
/ rear right deadlock relay
Front right
/ rear left deadlock relay
Door lock relay
Door unlock relay
LH Rear door actuator and switch
RH Rear door actuator and switch
Front door actuator lock
/ deadlock status
switches
Driver's door actuator lock
/ deadlock status
switches
Driver's door unlock shorting link
RH 'A' post base fuse-box
A5.9 PIN-POINT TESTS
The following information details test procedures to identify specific component faults.
The table below provides a key to items identified on the following schematic diagrams.
Item Description No.
21 Hood switch
22 LH Engine bay fuse-box
23 Horn relay
24 Horn unit LH
25 Horn unit
RH
26 Horn switches
27
Inclination sensor
28 Intrusion sensor LH
29 Intrusion sensor
RH
30
31
32 Reader exciter module
33 Reader exciter coil
34 Trunk fuse
-box
35 Security active indicator
36 Security sounder
37 Trunk release relay
38 Trunk release actuator
39 Trunk release switch (fascia)
40 Trunk release switch
41 Valet switch
Passenger
door key barrel switch
Driver's door key barrel switch
Item No.
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
X300 VSM 24 Issue 1 August 1994

Security System - RESTRICTED ISSUE 84
4b
A5.9.4 Door lock actuators and switch
1.
2.
3.
Examine fuse F1 in right hand 'A' post base fusebox, if blown determine reason for rupture and
renew.
Check continuity of harness wiring as shown on Fig.
1 below. Ensure secure ground connection
from lock/ unlock and deadlock (not N.A.S.) relay pins
4 and 9.
Remove the left hand rear seat hell board, gaining access to lock/ unlock and deadlock (not
N.A.S.) relays. Operate lock/ unlock and deadlock checking for audible relay operation. renew
suspect relays.
Release door lock and measure resistance between actuator unit pins
2 and 3, a value of
approximately
8Q should be recorded. Operate door lock and check that circuit between pins 2
and 3 is opened. Resistance across pins 1 and 3 should now be approximately 88.
4.
SI
+
SR SI I I sa VI II
I 1
J8S-1909
Fig. 1 Door Lock Actuator Circuit
*I N.A.S. only
*2 Not N.A.S.
X300 VSM Issue 1 August 1994 28

Security System - RESTRICTED ISSUE
AS. 9.6 Horns
1.
2.
Check fuses FIO and F14 in LH engine bay fuse box; if blown determine reason for rupture and
renew.
Check wiring harness continuity from multi
-plug 26-way connector pin 24 to relay unit
connector pin
6 and column switchgear connector pin 16. Ensure secure ground connection
from column switchgear connector pin
7.
Check wiring harness continuity from fuse connector pins 7 and 8 to LH and RH horn
respectively. Ensure secure ground connection from both horn units.
Ensure that
+12V (nominal) is present at the relay connector pin.
Operate horn switches and check that
+12V (nominal) is present at the two fuse connector pins
and
at speaker connector pin 44 (both units).
Check resistance across speaker unit pins;
a value of approximately 2Q should be recorded.
P21.
1
r- I
$ I
I
I
I I I,, Fu
0
J86- 1911
Fig. 1 Horn Unit and Relay Circuit
X300 VSM Issue 1 August 1994 30

1.
2.
3.
4.
5.
6.
7.
Check fuse F8 in trunk fusebox; if blown determine reason for rupture and renew.
Check harness wiring continuity between trunk fuse box connector pin
7 and relay pins 1 and 5.
Check harness wiring continuity to ground from relay connector pin 4 and actuator connector
pin
1.
Check harness wiring from multi-plug 26-way connector pin 11 to relay connector pin 2.
Check harness wiring continuity from relay connector pin 3 to actuator connector pin 2.
Measure resistance across relay connections 1 and 2; a value of 85Q should be recorded.
Measure resistance across actuator pins;
a value in the region of 20-30Q should be recorded.
PllP
1
I Ne 1
JB6 - 1918
Fig. 1 Trunk Lid Actuator and Relay Circuit
37 Issue 1 August 1994 I X300 VSM

Security System - RESTRICTED ISSUE 84
4!sw
A5.15 SECURITY SIREN
(12 CYL) - RENEW
SRO 86.52.03
= Open the trunk and remove the battery cover.
Disconnect the battery ground lead.
Open the hood and remove the headlamp
/ relay cover.
See
SRO 76.1 1.22, Section 13.
Remove the RH air cleaner element. See SRO 19.10.11, Section 5.2.
Remove the RH air cleaner assembly. See SRO 19.10.02, Section 5.2.
. Identify the RH forward harness relays (1 Fig. 1) for subse- quent refitting. Remove the relays and relay bases from
the mounting bracket.
. Disconnect the siren harness multi-plug (2 Fig. 1).
rn Reposition the side harness (3 Fig. 1) to gain access to the
. Undo the siren securing bolts (1 Fig. 2) and remove the
Note:
. Remove the captive washers and the siren securing bolts.
. Fit the siren securing bolts to a new siren.
. Fit and fully seat the captive washers.
. Align the siren securing bolts to the vehicle chassis.
Refitting the remaining components is the reverse of the re
-
moval procedure.
siren securing bolts.
siren
(2 Fig. 2).
The siren securing bolts remain captive.
Tighten the siren securing bolts.
AS. 16 SECURIN SIREN (6 CYL) - RENEW
SRO 8652.03
. Open the trunk and remove the battery cover.
rn Disconnect the battery ground lead.
. Open the hood and remove the headlamp / relay cover.
See SRO 76.1 1.22, Section 13.
. Identify the RH forward harness relays for subsequent re- fitting. Removethe relays and relay bases from the mount- ing bracket.
. Disconnect the siren harness multi-plug.
Reposition the side harness to gain access to the siren se-
. Undo the siren securing bolts and remove the siren.
curing
bolts.
The siren securing bolts remain captive.
Remove the captive washers and the siren securing bolts.
. Fit the siren securing bolts to a new siren.
. Fit and fully seat the captive washers.
= Align the siren securing bolts to the vehicle chassis.
Refitting the remaining components is the reverse of the re
-
moval procedure.
Tighten
the siren securing bolts.
Fig. 1
Fig. 2
X300 VSM Issue 1 August 1994 42