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VW CAN IDs Summary.md

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Volkswagen drivetrain CAN bus IDs (PQ46)

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

  • 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