PRE-RELEASE
Bus messages, TWICE
| Bus messages, TWICE |
For a further description of the car's bus system, see System overview, bus and diagnostics communication, petrol and System overview, bus and diagnostics communication, diesel .
| TWICE uses the following information |
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Information
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Value/Units
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Off
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The value is dependent on the following sensor input, signal or function
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Identification number
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MIU
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The value is created in MIU when the immobilization code is programmed into TWICE.
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SID button
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Night panel
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SID
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Button. TWICE uses the information for disconnecting the glass breakage sensor and tilt sensor. The Night Panel button is used for this purpose when the key has been removed from the ignition switch.
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Ignition +B
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ON/OFF
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DICE
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Ignition switch
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Ignition +15
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ON/OFF
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DICE
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Ignition switch
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Ignition +50
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ON/OFF
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DICE
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+15 present but not +54
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Ignition +54
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ON/OFF
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DICE
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Ignition switch. TWICE uses the information to inform the lamp check, seat belt warning, electrically heated rear seat and electrically adjustable front seat functions of the ignition switch status.
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Ambient Temperature
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°C
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SID
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Outdoor temperature, control module adjustment. TWICE uses the information to control the electric heating in the rear seat.
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Seat-belt switch, driver
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ON/OFF
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SRS
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Seat-belt buckle status, driver
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Seat-belt switch, passenger
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ON/OFF
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SRS
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Seat-belt buckle status, passenger
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Wheel speed RL
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0-300 km/h
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ESP
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Speed sensor RL
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Engine has started
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ON/OFF
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T7, diesel
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When the engine has started, the engine control module sends the value ON.
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Diagnostics communication
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Tech 2
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See Bus and diagnostics communication
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| TWICE sends out the following information |
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Information
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Value/Units
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Used by
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The value is dependent on the following sensor input, signal or function
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LH rear light faulty
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YES/NO
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SID
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Control module current measurement of the output to the lamps. SID uses the information to display CHECK messages.
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RH rear light faulty
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YES/NO
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SID
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Control module current measurement of the output to the lamps. SID uses the information to display CHECK messages.
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LH rear light
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ON/OFF
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DICE
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The control module input is supplied with current from the light switch. DICE uses the information to calculate the position of the light switch.
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RH rear light
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ON/OFF
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DICE
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The control module input is supplied with current from the light switch. DICE uses the information to calculate the position of the light switch.
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LH brake light faulty
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YES/NO
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SID
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Control module current measurement of the output to the lamps. SID uses the information to display CHECK messages.
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RH brake light faulty
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YES/NO
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SID
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Control module current measurement of the output to the lamps. SID uses the information to display CHECK messages.
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High-level brake light faulty
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YES/NO
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SID
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Control module current measurement of the output to the lamps. SID uses the information to display CHECK messages.
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Brake lights
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ON/OFF
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TCM, SID
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Brake lights switch
TCM uses the information for gear engagement. Trionic uses the information for the cruise control function. |
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Passenger seat occupied
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YES/NO
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ACC
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Seat sensor. ACC uses the function for one or two zone control.
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Acoustic warning
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Acoustical information
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SID
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On text message. SID uses the information to generate an acoustic signal for the seat belt warning.
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Driver's door
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OPEN/CLOSED
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MIU, DMM, PSM, DICE
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Door switch
DICE uses the information to turn on the interior lighting. MIU uses the information to turn on the indicator for open door. PSM uses the information to control the function, electric powered front seat. |
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Passenger's door
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OPEN/CLOSED
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MIU, DMM, PSM, DICE
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Door switch
DICE uses the information to turn on the interior lighting. MIU uses the information to turn on the indicator for open door. PSM uses the information to control the function, electric powered front seat. |
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LH Rear Door
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OPEN/CLOSED
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MIU, DICE
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Door switch
DICE uses the information to turn on the interior lighting. MIU uses the information to turn on the indicator for open door. |
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RH Rear Door
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OPEN/CLOSED
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MIU, DICE
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Door switch
DICE uses the information to turn on the interior lighting. MIU uses the information to turn on the indicator for open door. |
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Boot lid
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OPEN/CLOSED
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MIU, DICE
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Door switch
DICE uses the information to turn on the luggage compartment lighting. MIU uses the information to turn on the indicator for open boot lid. |
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Horn
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0: 6: 42 ms
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SID
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Anti-theft alarm function and central locking function. SID uses the information to activate the horn relay when the car is TSL locked.
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Hazard warning lights
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ON/OFF
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DICE
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Anti-theft alarm function and central locking function. DICE uses the information to activate the hazard flashers when the alarm is set off.
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Text message
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SID
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Anti-theft alarm function and central locking function. SID uses the information to display text messages for TWICE functions.
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Steering wheel location
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LHD/RHD
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PSM, ACC, MIU
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PSM uses the information to know which door is the driver's door.
ACC uses the information to know which is the driver's zone. |
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Key Correct
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ON/OFF
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Audio
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Immobilizer function. Audio uses the information for theft protection.
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Immobilization
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ON/OFF
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Trionic
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Immobilizer function. Trionic uses the information to allow the engine to be started.
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Central locking system
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LOCKED/UNLOCKED
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DICE
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DICE uses the information to turn on the interior lighting when the car is unlocked.
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Body type
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4D/5D
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SPA
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Control module programming
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Diagnosis
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Response to query from diagnostic tool
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DICE/diagnostic tool
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Control module should be live and the bus leads intact.
See Bus and diagnostics communication
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