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Land Rover Discovery Etm 1995 2nd Edition Rover Manual

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    							ELECTRICAL TROUBLESHOOTING MANUAL
    ETM P1
    Trailer Auxiliary Socket
    1
    DISCOVERY
    S402
    30
    F 6
    20 A
    E401
    See Ground Dis-
    tribution 2.0 PN
    1 C425P128
    Satellite Fuse
    Box 2
    X172
    Trailer Auxiliary
    Socket
    5 C400
    57
    F 8
    10 AP126
    Fascia Fuse Box
    5
    1.5 RB7 C211
    1.5 RO
    C277
    S403
    S420
    Side Lamps 1.5 RB 1.5 RD
    1 C4007
    Left Rear Side
    LampsRight Rear Side
    Lamps
    2.0 B
    20
    P126
    Fascia Fuse Box57
    F 2
    10 A
    8 C204
    S2006
    See Fuse Details
    S419
    15 C204
    17
    See Fuse Details
    0.5 RB 
    						
    							ELECTRICAL TROUBLESHOOTING MANUA L
    P1 ETM
    Trailer Auxiliary Socket
    2
    DISCOVERY
    P126
    Fascia Fuse Box
    With ABSWithout ABS
    S2055 X168
    Stop Lamp
    Switch
    [1] Brake Pedal
    Depressed
    [2] Brake Pedal
    Further De-
    pressed 2.0 GO15
    F 1
    15 A
    S2042
    1.0 GP
    1.0 GP Z206
    Stop Lamp
    Switch Sup-
    pressor
    [1][2]
    0
    21 C204
    See Fuse Details
    1 C2063 2 C2063HJ1
    S2011
    S409
    HJ4X168
    Stop Lamp
    Switch
    [1] Brake Pedal
    Depressed
    [2] Brake Pedal
    Further De-
    pressed
    S408
    2 C400
    X172
    Trailer Auxiliary
    Socket
    Stop Lamps1.0 GP 1.0 GP 1.0 GO
    1.0 GO 1.0 GO
    HJ4
    2 C227
    1 C227
    Stop Lamps1.0 GP
    With ABS
    Without ABS
    1 C2004
    1 C2003
    0.5
    GP1.0
    GP
    [1][2]
    0
    R
    R
    4 C277
    1.5 GP 
    						
    							ELECTRICAL TROUBLESHOOTING MANUAL
    ETM P1
    Trailer Auxiliary Socket
    3
    DISCOVERY
    56
    F 9
    10 A
    0 [1]
    E200
    See Ground Dis-
    tributionP126
    Fascia Fuse Box
    Interior Lamps
    1.0 UR0.5 RN
    X154
    Rear Fog Guard
    Lamps Switch
    0.5 B
    S2059
    Rear Fog Lamps
    X172
    Trailer Auxiliary
    Socket1.0 RY
    1.0 RY
    1.0 RY
    S434
    Rear Fog Guard
    Lamps
    0.7 RY
    21 C263
    54 C263
    11 C215
    C277
    6 C400
    13 C208
    14 
    						
    							0.5
    BO
    ELECTRICAL TROUBLESHOOTING MANUA L
    P1 ETM
    Trailer Auxiliary Socket
    4
    DISCOVERY
    S344
    15
    F 14
    10 A
    See Fuse Details
    P126
    Fascia Fuse Box
    2.0 GY
    Starting and
    Charging Automatic Trans-
    missionManual Trans-
    mission
    YB
    4 C323 GN
    1.0 GN
    X167
    Park/Neutral
    Position Switch
    Starting and
    Charging 0.5
    BY
    P
    R
    N
    D321P
    R
    N
    D321
    0[1]X157
    Reverse Switch
    1.0 GN
    3 C105
    1.0 GN
    12 C277
    1.5 GN
    S433
    Reversing Lamps
    1 C424
    Reverse Lamps
    X172
    Trailer Auxiliary
    Socket 0.5 BG
    7 C204
    25 C323
    31.0 GY
    2 C372
    1 C3000
    GY B
    1 C3001GN
    1 C372B 
    						
    							ELECTRICAL TROUBLESHOOTING MANUAL
    ETM P1
    Trailer Auxiliary Socket
    5
    DISCOVERY
    S2016
    15
    F 1
    15 A
    0
    [1]
    E200
    See Fuse Details 21 C204
    8 C267
    30
    F 4
    20 A
    4 C101
    1.0 GOP126
    Fascia Fuse Box
    P125
    Engine Compart-
    ment Fuse Box
    1.0 LGP
    5 C215
    1.5 LGP
    1 C204
    L
    Z128
    Flasher Unit
    W/L
    31 C206
    0.5 B
    See Ground Dis-
    tribution
    1 C254
    0.5 LGU
    Direction Indica-
    tor Lamps
    Z148
    Multi±Function
    Unit (MFU)
    Z148
    Multi±Function
    Unit (MFU)
    P126
    Fascia Fuse Box
    2 C204
    1.5 LGN
    B
    P1-6P126
    Fascia Fuse Box
    X220
    Hazard Switch
    7 C267 6
    B
    +
    ±
    C
    HJ1014 C209
    1 C215
    1.5 PN 
    						
    							ELECTRICAL TROUBLESHOOTING MANUA L
    P1 ETM
    Trailer Auxiliary Socket
    6
    DISCOVERY
    P1-7C
    P1-5
    S243
    0 [1]
    20 C215
    1.5 LGN
    1.5 LGN
    1.0 LGN
    1 C267 1.0
    LGN1.5
    LGN
    X220
    Hazard Switch
    2
    0.5 GR
    Z212
    Direction Indica-
    tor Diode 1
    0 [1]
    4 C267
    0.5 GW
    Z213
    Direction Indica-
    tor Diode 2
    0 [1]
    3
    0.5 LGGC202
    9
    Direction Indica-
    tor Lamps
    0.5 G
    0.5 G
    D
    P1-7
    E
    Direction Indica-
    tor Lamps
    B
    0.5 GW 0.5 GR 
    						
    							ELECTRICAL TROUBLESHOOTING MANUAL
    ETM P1
    Trailer Auxiliary Socket
    7
    DISCOVERY
    P1-6P1-6
    S239
    3 C2009
    C
    1.0 LGN
    2 C2009 4X116
    Direction Indica-
    tor Switch
    [1] Left
    [2] Right
    1.0 GR 1.0 GW
    15 C202 13
    P1-6
    ED
    0.5 GR 0.5 GW S241 1.5 GR
    C204C20814 C2048 C208
    P126
    Fascia Fuse Box
    Direction Indica-
    tor Lamps
    Direction Indica-
    tor Lamps
    4
    1.5 GR
    S4326 C211
    1.5 GW
    S405
    3 C4004
    Right Direction
    Indicator Lamps Left Direction In-
    dicator Lamps
    X172
    Trailer Auxiliary
    Socket
    Direction Indica-
    tor Lamps
    [1] [2]
    1.5 GW
    16 7
    19 C277 2 
    						
    							THEFT ALARM SYSTEM (EXCEPT JAPAN)
    1
    ETM T1
    DISCOVERY
    ELECTRICAL TROUBLESHOOTING MANUAL
    CIRCUIT OPERATION
    For 1995 models a vehicle alarm system is
    available as original equipment. The main function
    of the system is to offer easy±to±use remote
    locking and unlocking of the vehicle without having
    to actively select the alarm function.
    ALARM COMPONENTS
    4. Theft Alarm Unit (Z163) and Theft Alarm Relay
    (K159)
    5. Alarm Bonnet Switch (X212)
    6. Tailgate Switch (X170)
    7. Horns (K128, K134) and Horn Relay (K189)
    8. Theft Alarm LED (B151)
    9. Alarm Sensor (X213) (Not on all vehicles!)
    10. Front Door Key Switches (X201, X202)
    11. Lock Actuators (M114, M122, M117, M125,
    M132)
    12. Handset Transmitter (two supplied)
    ANTI±THEFT SYSTEM FUNCTION
    Perimetric Protection
    Using the key in the correct sequence will turn on
    and off perimetric protection only. When fully
    perimetrically armed, all doors, tailgate, and bonnet
    are protected against unauthorized access. If the
    door key is used in the normal manner the driver
    will be unaware of the door key sequence. The
    time taken to lock or unlock with the key must be
    less than 5 seconds. To prevent unauthorized
    tampering, the alarm will sound if the key is held in
    the unlocked position for longer than 5 seconds
    when armed. Cranking is disabled when perimetric
    protection is armed.
    NOTE: When key is turned left or right, the
    keyswitch input will be activated, in
    conjunction with the sill button switch when
    links are operated.
    Volumetric Protection
    Using the handset transmitter will turn On and Off
    volumetric protection. In volumetric mode the
    vehicle interior is protected using the Alarm Sensor
    (X213). Using the handset also arms and disarms
    the vehicle perimetrically. Cranking is disabledwhen volumetric and perimetric protection is
    armed.
    NOTE: If armed volumetrically, the vehicle
    CANNOT be disarmed using the key.
    Alarm Sounder (Z171)
    When an intrusion is detected the Alarm Sounder
    (Z171) will sound intermittently (Switzerland and
    Denmark continuous horn sound) and the hazard
    lights flash (where territorial regulations allow) for
    30 seconds. The alarm must be retriggered before
    the Alarm Sounder (Z171) will sound again. 
    						
    							THEFT ALARM SYSTEM (EXCEPT JAPAN)
    2
    T1 ETM
    DISCOVERY
    ELECTRICAL TROUBLESHOOTING MANUA L
    Vehicle Status Indication
    Vehicle status is indicated by up to three devices:
    (a) Alarm Sounder (Z171), (b) hazard lights, (c)
    Theft Alarm LED (B151). When the vehicle arms in
    either mode, the hazard lights will flash three times
    and the LED will flash rapidly for 10 seconds. LED
    will then flash at a slower rate while vehicle is
    armed. When the vehicle disarms, hazard lights will
    flash once and LED will extinguish. If LED remains
    lit, it indicates that the alarm has been triggered.
    Turning on ignition or arming the alarm will
    extinguish LED. The LED will give a long pulse
    flash to indicate the Alarm Sensor (X213) being
    activated.
    Central Locking
    Central Locking is controlled by the Theft Alarm
    Unit (Z163) and may be operated by the key, sill
    button(s) or handset. The system works on both
    front doors on four door vehicles or drivers door on
    two door vehicles.
    NOTE: The central door locking system will shut
    down for a period after more than 15
    consecutive operations.
    Inertia Switch
    An inertia switch is incorporated in the Theft Alarm
    Unit (Z163). If ignition is on and the vehicle
    receives an impact sufficient to activate the inertia
    switch, the unit will signal to unlock central locking
    actuators and flash hazard lights. Central locking
    will remain disabled for 30 seconds. To reset, turn
    ignition off and then on after the 30 second period
    has elapsed.
    Alarm Sensor (X213)
    The sensor operates by emitting an air pressure
    carrier wave and receiving the wave back. Any
    disturbace within the vehicle which disturbs the
    wave will be detected, triggering the alarm. When
    the volumetric sensor is activated it monitors
    movement within the vehicle for 15 seconds before
    detecting and responding to intrusions. If the
    sensor detects movement within the vehicle it
    delays arming until a 15 seconds quiet period has
    elapsed. If continuous movement is detected, the
    alarm will not arm volumetrically.
    Radio Frequency System
    The RF system uses four frequencies according to
    market. If the coaxial aerial is not fitted system
    performance will be impaired. Both ECU and
    handset have a colour±coded label.
    Frequency Colour Territory ECU/Handset:
    418.0 MHz, Pink/pink: UK, Ireland
    224.5 MHz, Yellow/yellow: France
    433.92 MHz, Blue/blue: Europe (not France,
     Switzerland, Italy, Denmark)
    433.92 MHz, White/blue: Switzerland, Denmark
    315.0 MHz, Green/green: Rest of World, Italy,
     Australia
    315.0 MHz, Orange/green: Gulf, Japan 
    						
    							THEFT ALARM SYSTEM (EXCEPT JAPAN)
    3
    ETM T1
    DISCOVERY
    ELECTRICAL TROUBLESHOOTING MANUAL
    Partially armed mode
    If a door, tailgate or bonnet is left open when the
    system is armed, the LED will not light for 10
    seconds indicating a mislock condition. Hazard
    lights will not flash. If an open door or tailgate is
    causing the mislock, the starter motor is disabled.
    The alarm will sound if ignition is turned to start
    position. If an open bonnet is causing the mislock
    the starter motor is disabled. The alarm will arm the
    volumetric part of the system. If the door tailgate or
    bonnet is subsequently closed, after a 5 second
    delay, the doors will unlock and immediately lock,
    and the system will fully arm.
    Handset Transmitter
    The handset LED will give one flash when button is
    pressed momentarily. If button is held down the
    LED will light again after 2 seconds for 2 seconds,
    and extinguish until button is released and
    repressed. The hanset contains unique information
    distinguishing it from other transmitters. It also
    contains a set of `random rolling codes
    programmed into the ECU before leaving the
    factory. Each time the handset is pressed a
    different code is transmitted to the ECU.
    If the handset is operated more than four times
    outside the vehicle range (6 metres) or power
    supply is removed, it will be necessary to
    re±synchronise handset and the ECU by pressing
    the handset three times within range and within 5
    seconds.
    NOTE: If both handsets are lost or damaged when
    system is armed, it will be necessary to fit a
    new ECU with two matching handsets.
    Handset Batteries
    If handset LED flashes continuously when button is
    pressed, the batteries need replacing. The hazard
    lights will flash one 3 second pulse, instead of three
    times upon arming vehicle.
    Power Up Mode
    The alarm system always remembers the state it
    was left in when power was removed. If the alarm
    powers up in an alarmed state and is subsequently
    triggered, it will give a warning that it will fully
    trigger unless disarmed. This warning consists ofshort horn pulses every two seconds for 15
    seconds.
    New Born Mode
    When the ECU is first produced, it will be in its
    `new born mode. In this mode it will respond to any
    remote of the right frequency. This mode will be
    cancelled when the ECU has received ten valid
    handset signals without power interruption.
    Engine Cranking
    It is only possible to crank the engine when ignition
    is ON and alarm disabled. 
    						
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