Workshop Manuals Factory service & repair Land Rover
01 Introduction02 Multiport fuel injection (MFI-V8)03 Multiport fuel injection (MFI-T16)04 300Tdi05 300Tdi glow plug control06 Starting and charging07 Cruise control08 Ignition and shift interlock09 Anti-lock brake system10 Instruments11 Warnings and indicators12 Horns13 Radio (EXCEPT Japan)14 Radio (Japan)15 Front wipe/wash16 Rear wipe/wash17 Heated rear screen and mirror demisters18 Multi-function unit (MFU)19 Headlamps20 Headlamp levelling21 Side lamps22 Stop lamps23 Direction indicator lamps24 Reversing lamps25 Rear fog guard lamps26 Interior lamps27 Cigar lighter/clock28 Blower controls29 Compressor controls30 Cooling fans31 Drivers side32 LH front corner of engine compartment33 Central locking (EXCEPT Japan)34 Central locking (Japan)35 Power mirrors36 Trailer auxiliary socket37 Theft alarm system38 Power distribution39 Fuse details40 Ground distribution41 Component location table42 Component location views43 Connector views44 Harness routing
Land Rover Discovery Electrical Troubleshooting Manual (1995)11 · Warnings and indicators
11 · General

Warnings and indicators

Make
Land Rover
Model
Discovery Electrical Troubleshooting Manual
Year
1995
Section
Page › Warnings and indicators
Warnings and indicatorsWarnings and indicators

WARNINGS AND INDICATORS

WARNINGS AND INDICATORS 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.

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.

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.

Main Beam Indicator

With the Headlamps turned on the Main Lighting Switch (X145), battery voltage is applied to the Main Beam Indicator which is also permanently grounded by ground E200.

Catalyst Warning Indicator (Japan Vehicles Only)

In case of a catalyst overheat, the catalyst thermocouples send a signal to the Catalyst Warning ECU’s which then provide battery voltage to the Catalyst Warning Relay (K172). The relay is energized and provides ground to the Catalyst Warning Indicator. The Catalyst Warning Indicator is also grounded by a 3 second timer as a bulb check.

E L E C T R I C A L T R O U B L E S H O O T I N G

2

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.

Fasten Seat Belt Indicator (Except Japan Vehicles Only)

The Fasten Seat Belt Indicator receives battery voltage with the Ignition Switch (X134) in position II. The indicator is also grounded through the MultiFunction 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.

M A N U A L

Parts & tools for this job For 1995 Land Rover Discovery

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