saab-93NG-IBUS

A collection of known I-BUS messages found in 2002/2003+ second-generation SAAB 9-3's. PR's welcome.

Single-Wire GM-LAN Bus, 33.33kbps

Messages are presented byte-wise, where b0 is the least-significant-byte. States are represented in binary and hex, and are provided with a human-readable description.

BY ID

0x91 - Cruise Control State

- b2
    - 00000000 (0x00) GUESS Cruise control not setup / brake must be pressed
    - 00100000 (0x20) Brake released, cruise control enabled?
    - 10100000 (0xa0) Brake pressed
- b1
    - 00000000 (00) Cruise control on
    - 00100000 (20) Cruise control off

0x108

- These are wrong atm.
- b0:b1
    - 16 bit integer for turbo boost (percentage I believe)
- b2:b3
    - 16 bit integer for RPM
- b4:b5
    - 16 bit integer for KPH

0x220

- b1:b2
    - Steering wheel angle (16 bit special integer)
    - When MSB is 0, decode as regular 16 bit integer (b1 << 8) + b2.
    - When MSB is 1, subtract 65536 from (b1 << 8), before adding with b2.
    - This results in a range of ~-8600 to ~+8600 representing full wheel range (lock to lock).
    - Unsure what the real-world angle-equivalent of this value is (yet).

0x290

- b0
    - 00000001 (01) Windshield washer (pull stick fully in)
    - 00000100 (04) Horn
    - 00010000 (10) Flash high beams (pull stick halfway)
    - 00011000 (18) Toggle high beams (pull stick fully in)
- b1
    - 00000001 (01) Wiper single
    - 00001010 (0A) Wiper intermittent
    - 00001011 (0B) Wiper slow
    - 00001101 (0D) Wiper fast
- b3
    - 00000000 (00) Default
    - 00000001 (01) Volume UP
    - 00000010 (02) Volume DOWN
    - 00000011 (03) SRC button
    - 00000100 (04) Voice activation button
    - 00000101 (05) Seek forward
    - 00000110 (06) Seek backward
    - 00010001 (11) NXT button
    - 00010010 (12) Phone button
- b4
    - 00000000 (00) Default
    - 00000100 (40) Indicator right
    - 00001000 (80) Indicator left

0x300

- b1
    - Light control panel mode
    - 00000000 (00) OFF
    - 00101000 (28) Daytime lights
    - 00011000 (18) Low-beam lights

0x310

- b1
    - SID-C ESP button
    - 00000000 (00) OFF
    - 00000001 (01) Pressed
- b5
    - SID-C Spare button
    - 00000000 (00) OFF
    - 00100000 (20) ON (Toggle)

0x320

- b0
    - Locking status / controls 
    - 00010000 (10) Driver unlocked
    - 00010001 (11) Driver locked
    - 00010100 (14) Unlock Button
    - 00011001 (19) Lock Button
- b1
    - Mirror adjustment, triggered by d-pad
    - 00000000 (00) Default
    - 10000000 (80) Adjustment in progress
- b3
    - Mirror adjust DPAD direction (for left mirror only?)
    - 00010000 (10) LEFT
    - 00100000 (20) RIGHT
    - 01000000 (40) DOWN
    - 10000000 (80) UP
- 

0x340

- b0
    - Child lock active

0x350

- b0
    - Child lock active

0x370

- b0
    - Front fog lights / reversing light
    - 00000000 (00) OFF
    - 00000001 (01) REVERSE
    - 01000000 (40) ON
    - 01000001 (41) ON and REVERSE

0x380

- b0
    - Brakes pressesd
    - 00000000 (00) Default
    - 00100000 (20) Brakes pressed
- b1
    - Rear fog lights
    - 00000000 (00) OFF
    - 00100000 (20) ON

0x460

- b0
    - 00000000 (00) Night mode off
    - 01000000 (40) Night mode on
- b1:b2
    - Instrument lighting brightness levels 
    - Night mode brightness
    - Two independant 8 bit integers
- b3:b4
    - Brightness sensor
    - 16 bit integer

0x490 SID Beep

 - Normal state
    - 0x00 0x00 
 - Beep state
    - 0x00 0x80

0x520

- b0
    - Years after 2000
    - 8 bit int
- b1
    - Month
    - 8 bit int
- b2
    - Day
    - 8 bit int
- b3
    - Hour
    - 8 bit int
- b4
    - Minute
    - 8 bit int
- b5
    - Second
    - 8 bit int