check engine light LAMBORGHINI MURCIÉLAGO 2009 Service User Guide
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
).
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L824 10 91 14
® 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 $
9 9 7 0 D Q D J H P H Q W
$ V S & R Q W ( Q , Q W D N H Y D U L D E O H Y D O Y H W L P L Q J R Q R I I 7 K H V \ V W H P R Q O \ L Q G L F D W H V W K D W W K H V R O H Q R L G Y D O Y H L V
on and not its operation. It therefore does not indicate if the solenoid valve is defective.
6 H W $ V S Position in degrees of intake variable valve timing mechanisms requested by tables
) D V H $ Implemented position of intake variable valve timing mechanisms
$ V S ( U U Implemented position error compared to requested (must always be less than 3°)
6 F D U & R Q W U R O ( Q ( [ K D X V W Y D U L D E O H Y D O Y H W L P L Q J P H F K D Q L V P V R Q R I I
6 H W 6 F D U Requested exhaust VVT position
) D V H 6 Exhaust VVT implemented position
6 F D U ( U U Implemented position error compared to requested (must always be less than 3°)
6 6 / B 9 D O X H D Q G $ 6 / B 9 D O X H self-learning values during cranking regarding the positioning of the exhaust and
intake VVT; the malfunction light comes on for values higher than ±10°; this indicates incorrect engine timing.
9 9 7 R S H U D W L Q J V W U D W H J \
The VVT have two variables: • Water temperature ( W +
2 2
)
• Engine speed ( 5 S P)
W + 2 2 ƒ &
Activation (the value of the parameter in the “Check list LP640” window regarding
“AspicontrolEn /ScarcontrolEN”) remains at zero.
W + 2 2 ƒ & 5 S P !
Activation goes from 0 to 1 but maintains a basic setting required by the system.
W + 2 2 ! ƒ & 5 S P !
The VVT will be changed to optimize the torque required by the system under every
condition.