Discovery electrical Manual — part 29
INSTRUMENTS
E1
6
1
C434
Z134
Fuel Pump Mod-
ule
[1]
Fuel Level
Sensor
[1]
B
2
C434
B
See Ground Dis-
tribution
S415
E400
E404
E1-5
C
GB
Z132
Engine Control
Module (ECM)
S2100
Except NAS
NAS
Except NAS
NAS
7
C1017
GB
13
C1026
23
C277
2
C407
WARNINGS AND INDICATORS (EXCEPT NAS)
E2
CIRCUIT OPERATION
1
CIRCUIT OPERATION
Hazard Indicator
If the Hazard Switch (X220) is depressed, a pulsing
voltage is applied to the Hazard Indicator which is
permanently grounded by ground E200.
Direction Indicator
If the Direction Indicator Switch (X116) is turned on,
a pulsing voltage is applied from the Flasher Unit
(Z128) to the Direction Indicator which is
permanently grounded by ground E200.
Trailer Indicator
With the Direction Indicator Switch (X116) turned on,
the Flasher Unit (Z128) also applies a pulsing
voltage to the Trailer Indicator which is permanently
grounded by ground E200.
Main Beam Indicator
With the Headlamps turned on by the Main Lighting
Switch (X145), battery voltage is applied to the Main
Beam Indicator which is also permanently grounded
by ground E200.
MFI–V8 and 300Tdi with EDC
Malfunction Indicator Lamp (Check Engine)
The Malfunction Indicator Lamp (Check Engine) is
grounded by the Engine Control Module (ECM)
(Z132) when a diagnostic trouble code is set.
Diesel
Glow Plug Indicator
The Glow Plug Indicator is grounded by the Glow
Plug Timer Unit (Z135) to indicate that the Glow
Plugs have been activated.
Oil Pressure Warning Light
The oil pressure warning light receives battery
voltage with the Ignition Switch (X134) in position II.
If the engine oil pressure is very low, the Oil
Pressure Switch (X149) will apply ground to the
warning light.
Differential Lock Indicator
The Differential Lock Indicator receives battery
voltage with the Ignition Switch (X134) in position II.
It is grounded by the Differential Lock Switch (X238)
when the Differential is locked.
Brake Warning Light
The brake warning light receives battery voltage with
the Ignition Switch (X134) in position II. It is
grounded by the Brake Fluid Level Switch (X111)
when the brake fluid level is low. It may also be
grounded when the Handbrake Switch (X191) is
closed.
WARNINGS AND INDICATORS (EXCEPT NAS)
E2
CIRCUIT OPERATION
2
ABS Warning Light
The ABS warning light receives battery voltage with
the Ignition Switch (X134) in position II. It is
grounded by the Anti–Lock Brake System ECU
(Z108) or the ABS Warning Relay (K103) in the
event of an ABS problem.
Engine Immobilised Warning Lamp (EIWL)
"&# $$"( & $
'$ ! #$ $ #
$ " $ $ $ $ '
$ #
Flashing = Immobilised
Continuous = Immobilised (Cirrus Fail)
Theft Alarm LED
The Theft Alarm LED receives battery voltage at all
times. It is grounded by the Theft Alarm Unit (Z163)
to indicate the following conditions:
Slow Flash = Immobilised or Immobilised and
armed
Rapid Flash = Perimetrically and Volumetrically
armed
Intermittent Rapid Flash = Perimetrically armed
No Flash for 10 Seconds = Mislock
Continuous = Driver’s door open (or ignition on)
and Immobilised
Transmission/Transfer Box Oil Temperature
Warning Light
The transmission/transfer box oil temperature
warning light is grounded by the Automatic
Transmission Oil Temperature Switch (X108) when
the temperature of the transmission fluid exceeds
130
°
C (266
°
F). The warning light is also grounded
by the Transfer Box Oil Temperature Switch (X174)
when the temperature of the transfer box fluid
exceeds 145
°
C (266
°
F).
Low Fuel Warning Indicator
When the fuel gauge sender’s resistance falls below
approximately 25 Ohms (6 liters/1.5 US gallons), the
Low Fuel Warning Indicator will illuminate to warn
the driver.
Charge Warning Light
The charge warning light receives battery voltage
with the Ignition Switch (X134) in position II. This
warning light is grounded by the Generator (Z106) if
the Generator is not producing normal power output
or the Generator stops turning.
SRS Indicators
The SRS Indicators are controlled by the Air Bag
Diagnostic Control Module (Z151) and the SRS
Indicator Control Circuit of the Instrument Cluster
(Z142) to indicate SRS System faults.
Fasten Seat Belt Indicator
(Gulf States Vehicles Only)
The Fasten Seat Belt Indicator receives battery
voltage with the Ignition Switch (X134) in position II.
The indicator is grounded through the Multi–
Function Unit (MFU) (Z148) and the Driver’s Seat
Buckle Switch (X120). If the Driver’s Seat Belt is
buckled, the Driver’s Seat Belt Buckle Switch opens
and the Indicator turns off.
WARNINGS AND INDICATORS (EXCEPT NAS)
E2
3
CIRCUIT DIAGRAM
LGG
Instruments
Z142
Instrument
Cluster
[13] Illumination
Z128
Flasher Unit
56d
F 4
10 A
P126
Fascia Fuse Box
1
C254
LGU
Warnings and
Indicators
9
4
6
3
G
UW
4
C208
C207
Direction Indica-
tor Lamps
W/L
RN
7
9
RN
C222
Interior Lamps
B
1
E201
C221
[13]
S253
See Ground Dis-
tribution
HJ8
31
31
31
31
31
31
31
31
31
31
31
56a
Нет комментариевНе стесняйтесь поделиться с нами вашим ценным мнением.
Текст