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Chrysler Pacifica 2017 Hybrid DBC guesses

Drew Hintz edited this page Mar 9, 2018 · 6 revisions
a8 bytes 3/4 are accel?
101 byte 3 is energy consumption or engine rpm
102 bytes 1/2 steering angle. factor=0.3187251, offset=-1307.888, -360,360 (right,left). top 3 bits not used.. ✅ STEERING
    bytes 3/4 are steering delta?
108 bytes 5/6 are accel
10e (byte 4 signed only active in ACC
    bytes 1/2 accel?
11c bytes 1/2 are brake
    bytes 3/4 are break intensity
    byte 4 bitmask 32 triggered by camera on?
    bytes 5/6 are speed/rpm
120 byte 3 is accel?
122 byte 1 set when accel pedal is pushed all the way in
123 byte 2 is signed unknown
126 something with accel (bytes 5/6 energy consumption?)
12c byte 3 seen in auto-park (accel or steering) TODO compare to non-autopark
134 byte 6 is accel
14b bytes 1/2 break pedal intensity
14c bytes 1/2 steering angle.
    bytes 5/6 are power use/regen
158 even bytes change mostly together, with movement?
1f5 byte 1 interesting ??radar??
202 byte 1/2 is speed/rpm. divide by 14.3 to get m/s (15.1, 15.4, 12.4) ✅  SPEED  The low 4 bits are not a checksum. and not included.
    bytes 3/4 are speed/rpm?  
    (dodge had bytes 2/3, 14 bits as the speed)
214 byte2 byte4 seen in auto-park (accel or steering) TODO compare to non-autopark
22f byte1 is accel
260 byte 2 auto-park steering wheel actuator? TODO compare to non-autopark THIS is 08 in non-auto-park
  bytes 2/4 perhaps gear? (08xx00 park, 0cxx01 rev, 08xx00 drive, 08xx01 park.... seems suspicious)
  bytes 7/8 signed are a repeated wave
28d byte 2 breaking intensity (clean signal) ✅  BRAKE_MODULE  BRAKE_PRESSURE
  byte 0 bitmask 16 if brake is on at all (perhaps break light) ✅ BRAKE_PRESSED
28f new one  at byte 0 bitmask 2 or 1 set when plugged in to charge. 0 if not charged.
292 byte 0 perhaps indicator for LKAS gree/white/yellow?
  byte 1 perhaps turning wheel?
294 bytes 4 breaking intensity
2e0 distance counter (bytes 1/2 and bytes 3/4 (slightly smaller value))
2ea Gear Shift byte 0 bitmask 4.... maybe 4=D, 3=N, 2=R, 1=P  ✅ PRNDL "Reverse" "Drive" "Neutral" "Park" ;
2fc byte2 is accel, byte 6 is accel
318 STEERING_LEVERS ✅ byte0 turnsignal  bitmask 1 left; bitmask2 right.
  --  high beams: new one  at byte 0 bitmask 8 (could also be 334 bit) (try this out)
330 byte 3 bitmask 8 set is traction is off
334 byte 3 door status. (bitmask 2 FL open, 4 FR open, 8 RL open, 16 RR open, 64 trunk open) ✅  DOORS    DOOR_OPEN_FL  DOOR_OPEN_RR DOOR_OPEN_TRUNK
-- also what's displayed on the dashboard (turn signals)
33a gear 
350 byte 1 incrementing counter, then affects byte 2 on overflow
36e byte 1 accel? 
  byte 2 accel?
38c byte 7 incrementing counter, overflows into incrementing byte 6
3ae byte 5 is slowly increasing, but not uniform
3ce byte 3 slowly changes as does byte 4

7e0 is a request, 7e8 is a response. Examples of these from a pacificaforums post by Breezy:
Name,ShortName,ModeAndPID,Equation,Min Value,Max Value,Units,OBD Header
Engine Coolant Temp,Coolant Temp,22011D,A-63,-40,120,C,7E0
Engine Oil Temp,Oil Temp,220121,A-63,-40,120,C,7E0
Accelerator Pedal Position,Acc Pedal,22114B,A*100/255,0,100,%,7E0
Commanded Power,Cmd Power,221997,A*100/255,0,100,%,7E0
221999,221999,221999,A,0,100,Unit,7E0
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