Ford Mustang CAN mapping

[dewittpayne]

Work in progress. I found some ID's on the web. I'll post the ones, if any, that work.

[brentp]

Thanks - did you mean to include an attachment?

[dewittpayne]

Here's the text version:

Can Message Identifier Byte(s) Bit Bitmask Description Comment
00000040 Only lasts when key is first on
00000046 Only lasts when key is first on
00000190 2 6 0x40 Brake Active
00000200 0,1 Unknown Correlates with with 00000200(4,5) & Acceleration
00000200 2,3 Unknown
00000200 4,5 Unknown Correlates with with 00000200(0,1) & Acceleration
00000200 6 7 0x80 Unknown
00000201 0,1 RPM Scale = X rpm.
00000201 2,3 Unknown Offset by 0x4000. Appears to be the ‘delta’ in engine torque? Derivative of rpm? Cumulative returns to zero.
00000201 4,5 Vehicle Speed Scale = X/100 km/h. Unsigned.
00000201 6 Accelerator Pedal Accelerator Position. 200 is fully depressed.
00000205 2 6 0x40 Brake Active
0000020F 2,3 Vehicle Speed Scale = (X-10000)/100 km/h, unsigned (Refer to handle position). Correlates with 0000004B0 wheel speeds.
0000020F 4 6 0x40 Unknown Appears always on
00000211 2 7 0x80 Unknown Appears always on
00000211 4 6 0x40 Unknown Appears always on
00000212 0 7 0x80 Unknown Appears always on
00000212 2 5 0x20 Unknown Appears always on
00000212 3 7 0x80 Unknown Appears always on
00000212 4 4 0x10 Some Dash Warning Light… Off when ignition is off
00000212 4 6 0x40 Some Dash Warning Light… Off when ignition is off
00000228 0 0 0x1 Off (Park) 0x03 appears to be ‘neutral’
00000228 0 1 0x2 Reverse 0x03 appears to be ‘neutral’
00000228 0 2 0x4 Forward (Drive)
00000228 0 3
00000228 0 4 0x10 1st Gear
00000228 0 5 0x20 2nd Gear
00000228 0 6 0x40 3rd Gear
00000228 0 7 0x80 4th Gear
00000228 1 3 0x8 Gear Shift Active for several messages on each gear change.
00000228 1 4 0x10 Unknown Occurred once on a gear change
00000228 1 6 0x40 Something to do with brake pedal
00000228 1 7 0x80 Manual/Triptronic
00000231 0 0 0x1 Unknown Not Brake, but very close…changes not far from brake
00000231 0 1 0x2 Unknown Always appears off
00000231 0 2 0x4 Unknown Always appears off
00000231 0 3 0x8 Unknown Always appears off
00000231 0 4 0x10 1st Gear Reverse = 0xE?
00000231 0 5 0x20 2nd Gear Reverse = 0xE?
00000231 0 6 0x40 3rd Gear Reverse = 0xE?
00000231 0 7 0x80 4th Gear Reverse = 0xE?
00000231 1,2 Unknown Torque? RPM demand x 10?
00000240 0 Unknown Varies, not correlated with speed/accel. Around 10/11/12 when stationary.
00000250 0 Unknown
00000250 1 Unknown
00000250 2 Unknown
00000250 3 Unknown Accelerator Position. 225 seems fully depressed, but bias of 32… See other accel pos. This might be the raw value, some noise.
00000250 4 0 0x1
00000250 5 1 0x2
00000250 5 2 0x4
00000250 5 3 0x8
00000250 5 4 0x10
00000250 5 5 0x20
00000250 5 6 0x40
000002A0 Unknown Appears to be all zeroes (4 byte frame)
00000420 0,1 Unknown
00000420 1
00000420 2 Unknown Counter (Always Increments)
00000430 Unknown Not sure if 2 bytes or byte pair.
00000433 1 0 0x1
00000433 2 0 0x1 Unknown Not seen to change (0)
00000433 2 1 0x2 Unknown Changes
00000433 2 2 0x4 Unknown Changes
00000433 2 3 0x8 Unknown Not seen to change (1)
00000433 2 6 0x40 Unknown Not seen to change (1)
00000433 3 0 0x1 Unknown
00000433 3 1 0x2 Unknown
00000433 3 2 0x4 Unknown
00000433 3 3 0x8 Unknown
00000433 5 0 0x1 Unknown Not seen to change (1)
00000433 6 0 0x1 Unknown
00000433 6 1 0x2 Unknown
00000433 6 2 0x4 Unknown
00000433 6 3 0x8 Unknown
00000433 6 6 0x40 Unknown
000004B0 0,1 Left Front Wheel Speed Check Order. Scale = (X-10000)/100 km/h, unsigned (Refer to handle position). Correlates with 00000020F vehicle speeds.
000004B0 2,3 Right Front Wheel Speed Check Order. Scale = (X-10000)/100 km/h, unsigned (Refer to handle position). Correlates with 00000020F vehicle speeds.
000004B0 4,5 Left Rear Wheel Speed Check Order. Scale = (X-10000)/100 km/h, unsigned (Refer to handle position). Correlates with 00000020F vehicle speeds.
000004B0 6,7 Right Rear Wheel Speed Check Order. Scale = (X-10000)/100 km/h, unsigned (Refer to handle position). Correlates with 00000020F vehicle speeds.
000004DA 0,1 Steering Column Angle (X-32768)/10 Degrees, Clockwise +ve.
000004DA 2 6 0x40 Unknown Not seen to change (1)
000004DA 2 7 0x80 Unknown Not seen to change (1)
000004EA Unknown 1 Byte Frame always 00
000004EC Unknown 8 Byte Frame always 00
000004F0 Unchanging Unknown Every 5s 14 24 12 FF FF 7F
000004F1 Unchanging Unknown Every 5s 4A 01 9F FF FF 64 5E 5E
000004F2 1,2 Odometer (Total) Might be first byte too to get the range
000004F3 Unchanging Unknown Every 5s 32 30 33 30 30 38 31 31
000004F4 Unchanging Unknown Every 5s 42 4B 31 30 46 32 30 30
- show quoted text -


Are CAN ID's hexadecimal?

[brentp]

Thanks. Looks like the CAN IDs you posted are hex; the CAN mapping dialog receives CAN IDs in decimal.

[AutocroSSer]

OK, so I am trying this...notes first off

• 2015 Fiesta ST (stock ECU and ECU program)
• RaceCapture Track, 2.11.0 Firmware and 1.9 App (both Windows and Android)
• Extra data desired for now : Steering Wheel Angle, Brake Line Pressure (as proxy for how hard I am braking), TPMS readings
• I AM able to connect and get the "extra" stuff listed above via the Android ForScan App thru an OBDLink MX, so I do know the data is there and exists

As an example on Steering Wheel Angle, what I have from the net that I think should work :

Name ShortName ModeAndPID Equation MinVal MaxVal Units Header
Steering Wheel Angle STWHEEL 223302 ((signed(A)*256+B))/10-780 deg ABS

So If I'm reading that right...

OBDII PID Tab : OBDII PID = 13058 (3302 in hex, translated to decimal) , Mode = 22h
CAN ID Match : left as 0 for CAN ID and 0 for Mask, on CANBUS 1
Raw Value : Offset = 0, Length = 2, Signed, Big Endian
Formula : Raw * 1 / 10 - 780
Units : no Conversion

Needless to say, it doesn't work yet in RaceCapture

So, anything obvious I'm doing wrong?

Or, any tips on back-engineering the data from ForScan? If I can get that, I should be able to decode LOTS of things here

[dewittpayne]

First, wrong thread. You should be posting this in the OBD mapping topic. Second, mode 22 is a Ford proprietary mode. It's possible that a code needs to be sent to the ECU before it will respond to a mode 22 PID request. CAN would be better.

[dewittpayne]

I bought the MicroChip CAN bus reader and an OBDII to RS232 cable.

RPM on a 2011 Mustang GT


ID 513
offset zero
length 2
big endian
raw/4
no conversion

You also have to turn on CAN channels, which was why this didn't work the first time I tried it.

I was able to get the CAN based RPM data into Harry's Laptimer. I haven't tried the old RaceCapture iOS app yet because I can't retrieve the data even if it worked.

Throttle Position should be relatively easy to find and Mass Air Flow not much harder, but wheel speed and Engine Coolant Temperature are going to be a bit more difficult.

[brentp]

Great you got that working. Love how much broadcast CAN data is available in these cars!

Next app release or following we'll have the preset feature available, which will make it easy to bring in a group of mappings in on one shot.