warning light LAMBORGHINI MURCIÉLAGO 2009 Service Repair Manual
[x] Cancel search | Manufacturer: LAMBORGHINI, Model Year: 2009, Model line: MURCIÉLAGO, Model: LAMBORGHINI MURCIÉLAGO 2009Pages: 1173, PDF Size: 98.14 MB
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Fig.4
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The exhaust pipe coming out from the catalytic converter features a thermocouple to read the temperature. This
thermocouple generates a signal in proportion to the exhaust gas temperature and sends it to a special electronic
control unit that switches on the “CATALYST RIGHT” or “CATALYST LEFT” warning light to which it is connected.
If there is an abnormal temperature increase in one of the catalytic converters the control unit intervenes as follows:•For temperatures ranging between 945 and 960 °C the “CATALYST” warning light switches on intermittently:
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• For temperatures over 960 °C the “CATALYST” warning light stays on permanently and the fuel is cut off to
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When temperature drops below 800°C, normal functions are reset.
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Lifting System
This is an hydraulic device enabling to lift the front part of the vehicle when driving at low speed, to allow access to areas with uneven surfaces. The system is composed of the following components:•Front shock absorbers;
• Electronic control unit (GFA);
• Ascent or descent control button;
• Connecting hoses and electric wires;
Lifting system layout (Fig.1)
A. Front shock absorbers
B. Electronic control unit (GFA)
C. Ascent or descent control button
D. 6 R O H Q R L G Y D O Y H V D Q G S U H V V X U H V Z L W F K H V D Q G À R Z V H S D U D W R U
E. 3 R Z H U V W H H U L Q J À X L G U H V H U Y R L U
F. Hydraulic pump
The system can be activated up to the maximum speed of 70 Km/h (30 Km/h for Japan); when it reaches this speed threshold the system will automatically go to the DOWN position. Moreover the system can recognize the following lifting system errors: • System pressure indicated simultaneously by two pressure switches as under 20 bars and over 70 bars (one or
both pressure switches damaged or disconnected).
• Vehicle ascending or descending time greater than 120 seconds (hydraulic or solenoid valve problem).
• Wrong vehicle speed indication.
The warning light on the dashboard will blink quickly to signal errors (it blinks slowing during raising/lowering).If problems occur the L.DAS software is used, which checks system errors and proceeds by resetting them.
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Fig.2
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If an error occurs, the ECU places the system in the DOWN position and the warning light will simultaneously blink quickly on the dashboard.
Lifting system control diagram (Fig.2)
A.GFA control unit
B. Vehicle speed signal
C. Lifting system button
D. Lifting system solenoid valves
E. Lifting system pressure switches
F. Lifting system warning light
G. +12 V power supply
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Fig.3
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• Hydraulic pump (it is the same used for power steering systems with capacity suited to the new system);
• Warning light on instrument panel;
• Vehicle speed signal.
Lifting system hydraulic connections (Fig.3)
1. Ascent solenoid valve
2. Descent solenoid valve
3. Pressure switch
4. Solenoid valve assembly
5. Flow separator
6. Shock absorber lower chamber
3 From power steering pump
A. To power steering system
B. 7 R À R Z V H S D U D W R U
R. To power steering oil reservoir
O. To front shock absorbers
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The GFA controls this system.
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The ABS system prevents wheel lock-up during braking and therefore maintains optimum steering and vehicle control even on roads with low grip.
The purpose of the ABS system is to modulate the pressure of the braking system in order to prevent wheel lock-up even during braking on roads with low grip.For optimum use of the system, continuous pressure must be applied to the pedal.
Activation of the ABS varies according to the adherence conditions between the road surface and the tires. To notice
the pulsing of the pedal on a dry surface, greater pressure must be applied compared to when on slippery road
surfaces. System activation, in fact, will be immediate if an attempt is made to stop the vehicle on snow or ice. Under
critical conditions the ABS helps prevent wheel lock-up and maintains control of steering.
The ABS, in certain low grip conditions (ice), might increase the distance necessary for stopping the vehicle but
permits maintaining control of the latter.
During braking without the ABS, the system electronically controls (DRP) braking distribution between the front and
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The ABS system is supplementary to the basic braking system. Any ABS system failure, although not leading to a
loss in braking, can modify the vehicle’s normal behavior when driving at top speed.
When the key is turned to “ON”, the ABS control unit carries out an internal test of the system. The warning light
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turn off.
Normally an intermittent acoustic signal comes on together with the light which, except for the initial start test, must
be interpreted as a malfunction that must be considered. If the warning light comes on during driving, a malfunction
was found and the ABS system is not activated. The vehicle must therefore be stopped, the engine must be turned
off and, after waiting one minute, the key must be turned to “ON” again. If the malfunction is temporary, the warning
light will turn off after carrying out the routine initial test.
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Fig.2
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The system is equipped with a warning light on the dashboard and a push-button on the tunnel for the deactivation. In particular:
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1 R W G H D F W L Y D W H G 7 K H 7 & 6 G R H V Q R W G H W H F W G L I ¿ F X O W D G K H V L R Q F R Q G L W L R Q V
Off DeactivatedWarning light and/or push-button and/or TCS harness malfunction
1 R W G H D F W L Y D W H G 7 K H 7 & 6 L V R S H U D W L Q J
Flashing Deactivated Warning light and/or push-button and/or TCS harness malfunction
1 R W G H D F W L Y D W H G 7 & 6 I D L O X U H
Staying on Deactivated TCS deactivated
Due to the system architecture, the failure warning to the TCS system is generally caused by failures in the ABS and/or Injection systems, so it takes place when one or more warning lights related to these systems switch on:
6 \ V W H P : D U Q L Q J O L J K W R Q 0 H D Q L Q J
ABS ABS Malfunction of one or more signals from phonic wheels
Injection Check engine 1-6 Cylinder bank 1-6 injection system malfunction
Check engine 7-12 Cylinder bank 7-12 injection system malfunction
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Fig.1
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9 D U L D E O H D L U Y H Q W V \ V W H P
In the vehicle rear side, two air vents with variable opening section cool the engine. Under some conditions the V \ V W H P D O O R Z V D J U H D W H U D L U À R Z D Q G L P S U R Y H V W K H H Q J L Q H F R R O L Q J The system consists of: •
Two air vents controlled by an electrical stepping motor;
• PMC engine control unit behind the driver’s seat;
• A manual control to activate the system under certain conditions;
• A warning light on the dashboard.
9 D U L D E O H D L U Y H Q W V \ V W H P
A. Mobile air vent
B. PMC control unit
C. Stepping motor
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Airbag
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the driver or passenger’s body and the structure of the vehicle.
This is a “passive safety system” since it comes into action once a certain deceleration value is exceeded (which can
only result from impacting into an obstacle) without the occupant acting in any way.
The deployment conditions of the airbag are governed by an electronic control unit (SDM) which continuously
S U R F H V V H V Y H K L F O H G H F H O H U D W L R Q $ Q H O H F W U L F S X O V H L V V H Q W Z K H Q D S U H G H ¿ Q H G W K U H V K R O G L V H [ F H H G H G 7 K L V K H D W V D Q
H O H F W U L F D O U H V L V W D Q F H K R X V H G L Q W K H J D V J H Q H U D W R U Z K L F K L J Q L W H V 7 K L V F D X V H V D F K H P L F D O ¿ U L Q J U H D F W L R Q Z K L F K L Q W X U Q ¿ U H V W K H S \ U R W H F K Q L F F K D U J H
7 K H S \ U R W H F K Q L F F K D U J H U H D F W L R Q J H Q H U D W H V L Q H U W J D V Z K L F K L V ¿ O W H U H G D Q G F R R O H G E \ P H W D O ¿ O W H U V D Q G L V W K H Q O H W
R X W I U R P W K H K R O H V R Q W K H J D V J H Q H U D W R U F D V L Q J F D X V L Q J W K H E D J W R L Q À D W H 7 K H E D J S O D F H V L W V H O I E H W Z H H Q W K H I U R Q W
internal structure of the vehicle and the occupant’s head (driver or passenger).
7 K H L Q À D W H G E D J L V D V R I W E D U U L H U W K D W V O R Z V G R Z Q W K H R F F X S D Q W ¶ V K H D G G X U L Q J W K H F R O O L V L R Q 7 K H E D J L V G H À D W H G E \ W K H
gas which is let out from a hole in the back of the bag by the action of the occupant moving forwards. The system
deployment times are in the order of thousandths of a second to anticipate the forward movement of the body during the deceleration caused by the impact.
7 K H S \ U R W H F K Q L F F K D U J H L V F R Q W D L Q H G L Q D V H D O H G F R Q W D L Q H U L Q W K H J D V J H Q H U D W R U , W V R Q O \ S X U S R V H L V W R L Q À D W H W K H E D J
, Q Q R F D V H F D Q W K H G H Y L F H W U D Q V P L W D I R U P R I H Q H U J \ Z K L F K F D Q ¿ U H D Q \ R W K H U J D V J H Q H U D W R U V V W R U H G L Q W K H L P P H G L D W H
proximity.
3 O H D V H Q R W H W K D W W K H J D V J H Q H U D W R U L V W K H R Q O \ D L U E D J V \ V W H P F R P S R Q H Q W F R Q W D L Q L Q J D S \ U R W H F K Q L F charge.
The SDM is the control unit governing all the airbag system functions. The SDM is the only control unit in the system.
It contains both the accelerometer and the error memory.
, I W K H D L U E D J Z D U Q L Q J O L J K W R Q W K H G D V K E R D U G W X U Q V R Q G X U L Q J Q R U P D O Y H K L F O H R S H U D W L R Q L W L Q G L F D W H V W K H D L U E D J V \ V W H P
malfunction. The malfunction will be stored in the SDM control unit as soon as the dashboard warning light turns on.
The airbag warning light indicates a failure without specifying its nature. Run the SDM control unit diagnostic procedure ( 3 & ' L D J 6 \ V W H P ) to verify the cause of the error.
) R U W K L V S X U S R V H D F R P S X W H U L V F R Q Q H F W H G W R W K H 6 ' 0 F R Q W U R O X Q L W Y L D W K H 5 6 V H U L D O L Q W H U I D F H 7 K H L Q W H U I D F H
L V ¿ U V W O \ F R Q Q H F W H G W R W K H 2 % ' , , F R Q Q H F W R U Z K L F K K D V D G L U H F W F R P P X Q L F D W L R Q O L Q H W R W K H 6 ' 0 D Q G W K H Q W R W K H
computer.
Restore the system after discovering the cause of the failure. The troubleshooting tables can be used for this purpose.
Page 1023 of 1173
1
L824 09 56 00
® Automobili Lamborghini S.p.A. 7 K H L Q I R U P D W L R Q D Q G S U R F H G X U H V S X E O L V K H G E H O R Z D U H V W U L F W O \ F R Q ¿ G H Q W L D O D Q G H [ F O X V L Y H O \ I R U W K H / D P E R U J K L Q L ' H D O H U 1 H W Z R U N D Q G $ X W K R U L ] H G 6 H U Y L F H 3 R L Q W V $ O O F R S \ U L J K W V D U H S U R S H U W \ R I $ X W R P R E L O L
/ D P E R U J K L Q L 6 S $ E D V H G R Q F R S \ U L J K W O D Z $ O O R I W K H 3 ' ) F K D S W H U V L Q W K H : ( % Z R U N V K R S P D Q X D O V G H V F U L E H G E H O R Z D U H E D V H G R Q L Q I R U P D W L R Q D Y D L O D E O H D W W K H W L P H R I S X E O L F D W L R Q 7 K H F R P S D Q \ U H V H U Y H V
W K H U L J K W W R P D N H X S G D W H V D Q G P R G L ¿ F D W L R Q V 7 K H I R O O R Z L Q J D U H S U R K L E L W H G U H S U L Q W L Q J U H S U R G X F W L R Q I R U Z D U G L Q J W R X Q D X W K R U L ] H G S H R S O H D Q G R U W K L U G S D U W L H V D Q G W U D Q V O D W L R Q L Q F O X G L Q J S D U W L D O Z L W K R X W
Z U L W W H Q D X W K R U L ] D W L R Q I U R P $ X W R P R E L O L / D P E R U J K L Q L 6 S $
$ , 5 % $ * control unit
The electronic control unit governs and activates the various airbag modules. The ECU contains following parts: • an aluminum container in which the following are arranged:
• an electromechanical sensor which discriminates the “activation/deactivation” conditions according to vehicle
deceleration;
• an electromagnetic safety sensor operating with the electromechanical sensor; both sensors must enable the
“activation” condition for the system to be deployed;
• an electronic board that analyses the signals from the two sensors and deploys the airbag modules when
required.
Furthermore, the electronic board has self-diagnostic features. When the ignition key is turned to “MAR”, it checks
the correct operation of the entire system. During the test a red warning light on the dashboard turns on. The
warning light turns off approximately four seconds after the engine is started if the system is working correctly. The airbag system will need to be attended to at an authorized workshop if either the red airbag warning light on the dashboard stays on for longer than 4-6 seconds after the engine has been started or turns on while traveling.
Page 1037 of 1173
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L824 09 81 00
Fig.1
® Automobili Lamborghini S.p.A. 7 K H L Q I R U P D W L R Q D Q G S U R F H G X U H V S X E O L V K H G E H O R Z D U H V W U L F W O \ F R Q ¿ G H Q W L D O D Q G H [ F O X V L Y H O \ I R U W K H / D P E R U J K L Q L ' H D O H U 1 H W Z R U N D Q G $ X W K R U L ] H G 6 H U Y L F H 3 R L Q W V $ O O F R S \ U L J K W V D U H S U R S H U W \ R I $ X W R P R E L O L
/ D P E R U J K L Q L 6 S $ E D V H G R Q F R S \ U L J K W O D Z $ O O R I W K H 3 ' ) F K D S W H U V L Q W K H : ( % Z R U N V K R S P D Q X D O V G H V F U L E H G E H O R Z D U H E D V H G R Q L Q I R U P D W L R Q D Y D L O D E O H D W W K H W L P H R I S X E O L F D W L R Q 7 K H F R P S D Q \ U H V H U Y H V
W K H U L J K W W R P D N H X S G D W H V D Q G P R G L ¿ F D W L R Q V 7 K H I R O O R Z L Q J D U H S U R K L E L W H G U H S U L Q W L Q J U H S U R G X F W L R Q I R U Z D U G L Q J W R X Q D X W K R U L ] H G S H R S O H D Q G R U W K L U G S D U W L H V D Q G W U D Q V O D W L R Q L Q F O X G L Q J S D U W L D O Z L W K R X W
Z U L W W H Q D X W K R U L ] D W L R Q I U R P $ X W R P R E L O L / D P E R U J K L Q L 6 S $
GFA Control Unit
The GFA control unit (Auxiliary Functions Management) is an on board computer that manages the operation of
many devices. The GFA is connected by CAN line to the LIE engine control unit and to the PCM control unit, and co-ordinates and manages many operations, especially concerning diagnostics.
The main functions controlled or coordinated by the GFA control unit are: •Cutting out accessory devices when the engine oil pressure is below 1 bar (pressure switch contact closed);
• Key inserted check and buzzer activation if the key is inserted and the driver’s door open after at least one KEY
ON;
• Check of light intensity on the instrument panel;
• Lights on check, activating the buzzer if lights are on, key inserted and driver’s door open;
• Check on driver’s side seat belt with timed activation of buzzer and key inserted warning light;
• Passenger compartment light check;
• Exhaust gas temperature in catalytic converter check (see GR.15 .– Engine Control);
• Instruments (fuel level indicator) and other indicators check;
• Front differential temperature check;
• Lifting system check;
• OBDII management (Engine Error);
• OBDII management (Gearbox Error 8 6 $ Y H U V L R Q
).