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.