VW CAN IDs Summary.md

Volkswagen drivetrain CAN bus IDs (PQ46)

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Shortkeys:

b0, b1, b... - means byte index

b0<<8 - left shift for 8 bits, the same as b0 * 256

d(some param) - means derivative, represents changing of the param

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• 0x50
  • (?) b2, b3 - some time-based ticks
• 0xC2
  • b1<<8+b0 - steering (b1 bit7 for L/R direction)
  • (?) b3<<8+b2 - noise, correlates d(steering)
• 0xD0
  • (?) b2 - steering wheel amplifier
• 0x1A0
  • b1 - brake pedal (bit3)
  • b3<<8+b2 - speed
  • (?) b7 - noise
• 0x1AC
  • (?) b1 - saw on 0/128 levels, ACC braking
  • (?) b4 - noisy, correlates d(speed)
  • (?) b5 - braking with engine, only on cruise (bit7)?
• 0x280
  • b0 - clutch (bit3) and acceleration (bit0) pedals
  • b1=b4=b7 - torque or engine load
  • b3<<8+b2 - RPM
  • b5 - acceleration pedal or cruise
  • (?)b6 - some smooth graph
• 0x284
  • (?) b1 - saw on different levels, levels depend on ACC braking
  • b2 - smooth graph, correlates ACC braking ACC
  • b4<<8+b3 - ACC braking
• 0x288
  • b1 - coolant temp. (X*0.75-48)
  • b2 - ACC working (bit6)
  • (?) b6 - power? (correlates torque+rpm)
• 0x320
  • (?) b0 - bit change when engine on
  • (?) b1 - bit change when start/stop driving
  • b2 - fuel level
  • b4<<8+b3 - speed
  • b6<<8+b5 - speed adjusted (+5%)
• 0x368
  • b4<<8+b3 - ACC request acceleration
• 0x380
  • b1 - intake air temp. (X*0.75-48)
  • b2 - acceleration pedal (excluding cruise control)
• 0x38A
  • b1 - ACC buttons (128 - off, bit0 - on/off, bit2 - spd down, bit3 - spd up)
• 0x390
  • b2 - driver door open (bit0)
  • b3 - reverse gear light (bit4), rear left and right doors open (bit2 and bit3)
  • b4 - left/right turn signals (bit2/bit3)
  • b5 - front right door open (bit1), trunk open (bit3)
  • b6 - low/high beam light (bit0/bit1), hazard lights (bit7)
  • b7 - windscreen wipers (bit2), brake signal (bit3)
• 0x392
  • b4 - headlights auto mode (bit5), rear fog light (bit7)
  • (?) b3 - ambient light level (very low values)
• 0x3A0
  • (?) b6 - some ticks, correlates speed
• 0x3BA
  • b2 - Buzer beep type 1 (bit0), type 2 (bit1). Side Assist LED. Yellow on (bit3), Green on (bit4).
• 0x3D0
  • (?) b0 - noisy when steering, wheel amplifier?
• 0x470
  • b4 - Backlight brightness. Min 0x1B, max 0x64
• 0x480
  • b0 - strange counter, if it has ticks with b0 & 0b100001 == 0b100001 then DPF regeneration is active
  • b1 - DPF icon on dashboard (bit1)
  • (?) b3 - slowly grows up when engine on, grow correlates speed, fuel concumption?
  • b5 - clutch fully disengaged (bit7)
• 0x488
  • b1, b2 - same values, torque or engine load
• 0x48A
  • (?) b2<<8+b1 - low values, correlates RPM
  • b6 - selected/recommended gear (calculated from speed/rpm ratio)
• 0x4A0
  • b1<<8+b0 - ABS speed, each pair of bytes for each wheel
• 0x4A8
  • b3<<8+b2 - brake pressure excluding ACC. b3=128 if no braking, otherwise 0...1
• 0x497
  • b1, b7 - parktronic
• 0x520
  • b7<<8<<8 + b6<<8 + b5 - mileage (odometer)
• 0x540
  • b7 - selected/recommended gear (calculated from speed/rpm ratio)
• 0x588
  • b4 - turbine boost
  • b7 - oil temp. (X-60)
• 0x598
  • b0 - DCC mode - last two bits for comfort (01), normal (10), sport (11), bit1 always 1, bit3 - button pressed
• 0x5A0
  • (?) b0 - radial force (128 - baseline, noisy),
  • (?) b2<<8+b1 - correlates speed
  • (?) b6<<8+b5 - some other smooth graph
• 0x5C0
  • (?) b0, b1 - parking brake?
  • b2 - long. force (128 - baseline)
  • b5 - clutch (bit5)
  • b7 - saw, level means acceleration/braking (binary)
• 0x5E0
  • b4, b6 - climate on/off