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Torque » Torque OBD ECU Scanner » Torque Discussion / Ideas » using TorqueScan to find

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Author Topic: using TorqueScan to find
offbeatmammal
Member
Posts: 10
Post using TorqueScan to find
on: July 31, 2019 (GMT)

are there any instructions on how to identify/decode a PID? I have the “pro” version and torquescan plugin but no idea how to actually work out what I’m looking at!

I’m trying to work out if the Subaru Forester (MY18) TPMS data is available to view/display in Torque Pro…
cintakc
Member
Posts: 1661
Post Re: using TorqueScan to find
on: July 31, 2019 (GMT)

in the torquescan plugin set ECU address 753
offbeatmammal
Member
Posts: 10
Post Re: using TorqueScan to find
on: August 6, 2019 (GMT)

probably being obtuse but … then what? that gives a long list of all the same response value :(
cintakc
Member
Posts: 1661
Post Re: using TorqueScan to find
on: August 6, 2019 (GMT)

what is the answer from the ECU?
offbeatmammal
Member
Posts: 10
Post Re: using TorqueScan to find
on: August 9, 2019 (GMT)

I may be missing something but …
I overwrite the “auto” with 753 in the torque scan plugin and then it runs and returns 75B037F2222 for a whole load of commands

(I’m probably missing something really obvious, this is all new to me!)
cintakc
Member
Posts: 1661
Post Re: using TorqueScan to find
on: August 9, 2019 (GMT)

send such requests in the terminal and post a response from the ECU
here for example with such a terminal
https://play.google.com/store/apps/details?id=ru.mosreg.krasn.Elm327Chat&hl=ru

atz
atsp6
atsh753
atfcsh753
atfcsd300000
atfcsm1
atcra75b
1003
22f100
2100
0100
offbeatmammal
Member
Posts: 10
Post Re: using TorqueScan to find
on: August 10, 2019 (GMT)

Results as follows:

atz: OK
atsp6: OK
atsh753: OK
atfcsh753: OK
atfcsd300000: OK
atfcsm1: OK
atcra75b: OK
1003: 1003 7F 10 22
22f100: 22F100 7F 22 22
2100: 2100 7F 21 22
0100: 0100 7F 01 22

Hopefully makes some sense … seems like getting tire pressures (if the data was there) shouldn’t be a bit deal, but the auto industry doesn’t want to make things too easy!
cintakc
Member
Posts: 1661
Post Re: using TorqueScan to find
on: August 10, 2019 (GMT)

ECU responds with error code 22

Error code 7Fxx22
ConditionsNotCorrectOrRequestSequenceError.
This response code indicates that the requested action will not be taken because the
server (ECU) prerequisite conditions are not met. This request may occur when
sequence sensitive requests are issued in the wrong order.
The communication timing is not affected by this response code!

Example: The server (ECU) shall send this response code in case the client (tester) has sent a known and
supported request message at a time where the server (ECU) has expected another request message because of a
predefined sequence of services. A typical example of occurrence is the securityAccess service which requires a
sequence of messages as specified in the message description of this service.
offbeatmammal
Member
Posts: 10
Post Re: using TorqueScan to find
on: August 11, 2019 (GMT)

so, no TPMS data… or did I stuff something up?
cintakc
Member
Posts: 1661
Post Re: using TorqueScan to find
on: August 11, 2019 (GMT)

to establish communication with the ECU TPMS, you most likely need to use the access security service
try this
atz
atsp6
atsh753
atfcsh753
atfcsd300000
atfcsm1
atcra75b
2701
27020000
1003
22f100
2100
0100
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