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Navigation: MTune Settings > CAN Bus

CAN OBD-II input

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Feature to READ engine data from any OBD-II vehicle ECU into MaxxECU, mostly used in piggyback applications.

Note: Please disconnect the MaxxECU when using any other OBD-II diagnostic tool.

 

 

Please be aware, that many vehicles DOES NOT HAVE this available in the system!

 

 

 

CAN OBD-II ID setup

 

Most OEM ECUs handles broadcast request differently, therefore we have the below options for you to try on your vehicle CAN bus.

 

request ecu id

The request ID sent to the system.

Note: The broadcast (0x7DF) is requesting data from ALL VEHICLES ECUs, which puts a high load on the CAN-bus, but it might be required for some vehicles.

 

response ecu id

The response ID the system is listening to.

Note: It is most likely that the request ecu id and the response ecu id has the same functional value.

 

 

Most likely setup

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An example where we request engine data parameters from the functional "0" and get response back from the functional "0".

 

Second most likely setup

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An example where we request ALL vehicle data parameters with the broadcast request get response back from the functional "0".

Note: This will put a high load on the CAN-bus.

 

 

CAN OBD-II

 

Get CLT from OBD-II

Reads the CLT from the vehicle OBD-II protocol and uses it as the CLT in MaxxECU.

 

Get IAT from OBD-II

Reads the IAT from the vehicle OBD-II protocol and uses it as the IAT in MaxxECU.

 

Get TPS from OBD-II

Reads the TPS from the vehicle OBD-II protocol and uses it as the TPS in MaxxECU.

 

Get MAP from OBD-II

Reads the MAP from the vehicle OBD-II protocol and uses it as the MAP in MaxxECU.

 

Get SPEED from OBD-II

Reads the MAP from the vehicle OBD-II protocol and uses it as the MAP in MaxxECU.

 

Get Lambda from OBD-II

Reads the Lambda from the vehicle OBD-II protocol and uses it as the Lambda in MaxxECU.

Note: if ANY of the above is enabled, ANY other wired input with the same function get discarded!

 

 

Example

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1. Enable the get CLT from OBD2 feature in CAN Bus --> CAN OBD2 input, which now takes engine CLT from the stock ECU using OBD-II data and completely discards anything on the CLT electrical inputs.