1994 JAGUAR XJ6 brakes

Brakes
Code Fault
5246h Outlet valve, rear right
5254h Inlet valve, rear right
5242h Outlet valve, rear left
5250h Inlet valve, rear left
5120h Outlet valve, front right
5214h Inlet valve, front right
5194h Outlet valve, front left
5198h Inlet valve, front left
5404h Isolating valve
5168h Sensor, rear right
5178h Sensor, rear left
Stored Fault codes
The following information detailsfault codes which may be stored, automatically within the ABS/TC CM and accessed
as an aid to fault diagnosis using Jaguar Diagnostic Equipment.
Comment
r5148h 1 Sensor front right I
5158h Sensor, front left
5165h Sensor, rear right
5175h
5145h
Sensor, rear left
Sensor, front right Sensor
failure recognised by 'monitoring of
wheel speed continuity'
Fi&h- I Sensor, front left I
5260h
5261h
5259h
5258h
Sensor, rear right
Sensor, rear left
Sensor, front right comparison'
Sensor, front left Sensor
failure recognised
by 'wheel speed
1--- r- I
5236h
5234h
5233h
5235h I Sensor, rear right
Sensor, rear left
Sensor, front right
Sensor, front left Sensor
failure recognised by 'long term
detection of missing sensor signal'
Issue 1 August 1994 X300 EDM 9

E I ect r ica I
15.2.4.6 Engine Coolant Level
This signal (pin 37,48-way connector) comes from the coolant level switch, mounted in the lower face of the coolant
header tank. The switch is normally in the closed position, providing
a low signal to the instrument pack, when the
coolant level is acceptable. If the coolant level drops, the switch will open, removing the low signal and illuminating
the indicator lamp.
15.2.4.7 SRS Air bag fault
The input signal (pin 45, 48 way connector) is provided by the SRS Diagnostic Module.
WARNING: REFER TO SECTION 15, SUPPLEMENTAL RESTRAINT SYSTEM, BEFORE AlTEMPTlNG ANY DIAGNOSTIC
WORK ON SYSTEMS ASSOCIATED WITH THE
SRS.
15.2.4.8 Charging Fault
Battery voltage is displayed on the gauge by measuring the ignition voltage.
The red charge warning lamp will illuminate if either the voltage is too low (below
10.5V) or too high (above 15.5V). In addition,the generator provides a low signal to the instrument pack (pin 9,48-way connector) when battery charging
is unsatisfactory.
15.2.4.9 Brake System Fault (red)
The brakesystem fault receives a signal (pin 10,4&wayconnector)from the fluid level switch located in the brake fluid
reservoir. The switch is normally in the closed position, providing a low signal to the instrument pack, when the brake
fluid level is acceptable. If the fluid level drops, the switch will open, removing the lowsignal and illuminating the indi
- cator lamp.
15.2.4.10 Park Brake (red)
Park brake warning is indicated on application of the brake, which closes a micro-switch within the park brake handle
assembly. The signal to the instrument pack (pin 17, &way connector) is low when the park brake is applied and il- luminating the indicator lamp.
Issue 1 August 1994 15.2 - 6 X300 EDM

E I ect r ica I n
3. Brakeswitches
a. Unplug switch connector and check for battery voltage between pin 3 and ground with ignition
b.
on. If battery voltage is not present switch off ignition and examine harness, checking
continuity between pin 3 and splice
FCS16.
Test switch continuity across pins as follows:
Pin
3 - Pin 2; normally closed, opens on pedal operation breaking circuit continuity. Also,
checkcontinuity from pin
2 to clutch switch (where fitted) or link pin 1.
Pin 1
- Pin 4; normally open, closes on pedal operation completing circuit continuity. Also,
check continuity from switch pin 1 to
SC CM pin 15 and switch pin 4 to ground.
4. Clutch switch (where fitted) or link
a. Unplug switch connector and check for battery voltage between pin 1 and ground with ignition
on. If battery voltage is not present switch
off ignition and examine harness, checking continuity
between pin 1 and splice
FCS16.
Check continuity across switch pins 1 and 2, switch (where fitted) is normally closed and opens
on pedal operation.
Examine wiring harness, checking continuity between pin
2 and SC CM pin 12.
b.
C.
1
.---I
1. Speed Control Control Module (SC CM) 7. Dump Valve
2. Clutch Switch 1 Link 8. Control Valve / Pump Unit
3. Brake Switch 9. Gear Position Module 4. LH 'A' Post Base Fuse-box 10. ABS Control Module
5. Switch Pack 11. Instrument Pack
6. Column Switchgear Dimmer
Fig. 1 Brake and Clutch Switches
X300 EDM 15.3 - 9 Issue 1 August 1994