RX8 native CAN messages mapping.xlsx

	A	B	C	D	E	F	G	H	I	J	K	L	M	N	O
1	ABS / DSC	Advanced Braking System / Dynamic Stability Control			Indicates a patched value				Additional Notes
2	PCM	Main Computer - ECU - Lives above the EPS							PCM will send out errors on CAN ID 212 if the ABS / DSC system is offline
3	EPS	Electronic Power Steering - Lives below the PCM
4	KCM	Keyless Control Module
5	SAS	Steering Angle Sensor
6	IC	Insturment Cluster
7	TCM	Transmission Control Module (AT only)
8	TPMS	Tyre Pressure Monitoring System
9	TC	Traction Control
10	MIL	Malfunction Information Light
11	BL	Blinking
12	NA	byte not present at all
13	X	a constant (perhaps unused) byte
14	Hex			Bytes	Byte	Byte	Byte	Byte	Byte	Byte	Byte	Byte
15	CAN ID	Output By	Used By	Length	0	1	2	3	4	5	6	7
16	81	SAS	EPS, PCM	4	CountDown? KeepLive?	239 If Steering Wheel Centered	64993-542						(FDE1 to 021E), 0000 Center, FDE1 Left, 021E Right
17	212	ABS / DSC	IC, EPS, PCM	7				DSC Bit 3 MIL	ABS Bit 4 MIL	TC Off Bit 5 MIL
18									Hand Brake or Brakes Failed Bit 7 MIL	TC Flashing (active) Bit 6 MIL
19	300	EPS	IC	1	Steering Wheel Bit 8 MIL								128 on, 0 off
20	4b0	ABS / DSC	PCM	8	FRONT LEFT		FRONT RIGHT		REAR LEFT		REAR RIGHT		(Wheel Speeds - 10000) / 100 (IN KPH)
21	4b1	ABS / DSC	PCM	8	FRONT LEFT		FRONT RIGHT		REAR LEFT		REAR RIGHT		Wheel Speeds / 100 (IN KPH)
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23	430	IC	PCM	7	overall tank level; 12 = empty, 245 = full	main sender (ohms?)	sub sender (ohms?)	0	0	0	96		Fuel tank level(s)
24	204		UNKNOWN	1	0								NEVER CHANGES
25	47	KCM	PCM	See conversation below									Immobiliser
26	4c0	ABS / DSC	PCM	1	0								Odometer
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29	201	PCM	EPS, ABS / DSC, KCM, IC	8	RPM		X	X	KPH		APP	X	Send RPM = Actual RPM * 3.85	Throttle Pedal 0 - C8 in 0.5% increments	Send KPH = (Actual KPH * 100) + 10000
30	203		TC	7	19	19	19	24	175	2	19		This needs sending witin 0.5 seconds of ignition otherwise traction light will come on
31	240		RX8 UGK	8	Fuel system status	WB O2 AFR	absolute load	KR	STFT	LTFT	CAT temp	CL afr target
32	215		UNKNOWN	8	leading timing related		trailing timing related		unk engine friction sth		TP desired pos	some status
33	231		TC	5	15(in gear/clutch not pressed) or 255(in neutral/clutch pressed)	0 (always)	65536 (always)		0(always)	-	-	-	This needs sending witin 0.5 seconds of ignition otherwise traction light will come on
34	250		RX8 UGK	8	primary IPW (with dead time)		leading timing	iat	MAF		TPS	sec IPW
35	420		IC	7	ECT	ODO	coil dwell time 16b		Oil Pressure switch	MILs		-
36	620		speed limiter stuff?	7	0	0	0	0	16	0	2		If you alter these then ABS stops working…Byte 7 on some RX8's appears to be 2,3 or 4
37	630		abs/tcm	8	8 = MT, 2 = AT	0	0	0	0	0	106 = Wheel Size	106	Type of Transmission and Wheel Size
38	650		IC	1	Cruise control leds 0x40 Green 0x80 Yellow 0xC0 Both	-	-	-	-	-	-	-	CRUISE CONTROL
39	47	KCM Repeats (Booting?)		8	6	1	255	0	0	0	0	0
40	47	KCM Sends	PCM	8	6	127	2	0	0	0	0	0
41	41	PCM Response	KCM	8	7	12	48	242	23	0	0	0
42	47	KCM Sends	PCM	8	8	92	244	101	34	1	0	0
43	41	PCM Response	KCM	8	129	127	0	0	0	0	0	0
44	47	KCM Sends (Done?)		8	0	0	0	0	0	0	0	0
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