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4 Copy edited (e.g. ref. <https://en.wikipedia.org/wiki/On-board_diagnostics#OBD-II>, <https://en.wikipedia.org/wiki/Citro%C3%ABn>, and <http://en.wikipedia.org/wiki/CAN_bus>).
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In the Wikipedia PID list we can see that 0x0C for engine RPM, 0x0D vehicle speed, etc. Is this same for all car manufacturers?

In Arduino examples we can see that data[2] reserves the PID (for engine RPM 0x0C) and by converting hex to decimal data[3] and data[4] of the message and by the formula

((256*data[3])+data[4])/2

we can get the value of RPM.

But when I try to apply this to a Citroën car, I can see 0x0C, but the data in the message does not change although the real RPM value changes. It means that this does not show RPM on that car.

I am using PCan-View for reading the CAN bus. Does this affect the result? So can we say there are not general PID values?


Thank you very much for your answers. Some parts of the data, which includes 0C, can be seen in below.

86)        91.6  Rx         **0208**  8  18 **0C** 31 00 4C FF FF 27
99)       101.6  Rx         0208  8  18 **0C** 31 00 4C FF FF 27
107)      105.3  Rx         **040D**  8  00 00 00 00 00 00 00 **0C**
114)      114.5  Rx         **034D**  8  00 23 FA FA 00 **0C** 00 FF
735)      745.1  Rx         040D  8  00 00 00 00 00 00 00 **0C**

These codes repeat many times during the data gathering. But row data areis always the same, even when the car engine is running. If we consider address 034D has 0C in data[2], we have to calculate RPM with FA and 00 decimal values. But they never change.

I am not sure that we are following the right path.

In the Wikipedia PID list we can see that 0x0C for engine RPM, 0x0D vehicle speed, etc. Is this same for all car manufacturers?

In Arduino examples we can see that data[2] reserves the PID (for engine RPM 0x0C) and by converting hex to decimal data[3] and data[4] of the message and by the formula

((256*data[3])+data[4])/2

we can get the value of RPM.

But when I try to apply this to a Citroën car, I can see 0x0C, but the data in the message does not change although the real RPM value changes. It means that this does not show RPM on that car.

I am using PCan-View for reading the CAN bus. Does this affect the result? So can we say there are not general PID values?


Thank you very much for your answers. Some parts of the data, which includes 0C, can be seen in below.

86)        91.6  Rx         **0208**  8  18 **0C** 31 00 4C FF FF 27
99)       101.6  Rx         0208  8  18 **0C** 31 00 4C FF FF 27
107)      105.3  Rx         **040D**  8  00 00 00 00 00 00 00 **0C**
114)      114.5  Rx         **034D**  8  00 23 FA FA 00 **0C** 00 FF
735)      745.1  Rx         040D  8  00 00 00 00 00 00 00 **0C**

These codes repeat many times during the data gathering. But row data are always the same, even when the car engine is running. If we consider address 034D has 0C in data[2], we have to calculate RPM with FA and 00 decimal values. But they never change.

I am not sure that we are following the right path.

In the Wikipedia PID list we can see that 0x0C for engine RPM, 0x0D vehicle speed, etc. Is this same for all car manufacturers?

In Arduino examples we can see that data[2] reserves the PID (for engine RPM 0x0C) and by converting hex to decimal data[3] and data[4] of the message and by the formula

((256*data[3])+data[4])/2

we can get the value of RPM.

But when I try to apply this to a Citroën car, I can see 0x0C, but the data in the message does not change although the real RPM value changes. It means that this does not show RPM on that car.

I am using PCan-View for reading the CAN bus. Does this affect the result? So can we say there are not general PID values?


Thank you very much for your answers. Some parts of the data, which includes 0C, can be seen in below.

86)        91.6  Rx         **0208**  8  18 **0C** 31 00 4C FF FF 27
99)       101.6  Rx         0208  8  18 **0C** 31 00 4C FF FF 27
107)      105.3  Rx         **040D**  8  00 00 00 00 00 00 00 **0C**
114)      114.5  Rx         **034D**  8  00 23 FA FA 00 **0C** 00 FF
735)      745.1  Rx         040D  8  00 00 00 00 00 00 00 **0C**

These codes repeat many times during the data gathering. But row data is always the same, even when the car engine is running. If we consider address 034D has 0C in data[2], we have to calculate RPM with FA and 00 decimal values. But they never change.

I am not sure that we are following the right path.

3 Copy edited (e.g. ref. <https://en.wikipedia.org/wiki/On-board_diagnostics#OBD-II>, <https://en.wikipedia.org/wiki/Citro%C3%ABn>, and <http://en.wikipedia.org/wiki/CAN_bus>).
source | link

Are OBD2OBD-II PID codes the same for all car manufacturers?

In the Wikipedia PID list we can see that 0x0C for Engineengine RPM, 0x0D vehicle speed, etc. Is this same for all car manufacturers? 

In Arduino examples we can see that data[2] reserves the PID (for engine RPM 0x0C) and by converting hex to decimal data[3] and data[4] of the message and by the formula  

((256*data[3])+data[4])/2

we can get the value of RPM.

But when I try to apply this to Citroena Citroën car, I can see 0x0C, but the data in the message does not change although the real RPM value changes. It means that this does not show RPM on that car.

I am using PCan-View for reading CanBusthe CAN bus. Does this affect the result? So can we say there isare not general PID values?

Thank you in advance.

Update:

 

Thank you very much for your answers. Some parts of the data, which includes 0C, can be seen in below.  

86)        91.6  Rx         **0208**  8  18 **0C** 31 00 4C FF FF 27  
99)       101.6  Rx         0208  8  18 **0C** 31 00 4C FF FF 27    
107)      105.3  Rx         **040D**  8  00 00 00 00 00 00 00 **0C**  
114)      114.5  Rx         **034D**  8  00 23 FA FA 00 **0C** 00 FF   
735)      745.1  Rx         040D  8  00 00 00 00 00 00 00 **0C**

These codes repeat many times during the data gathering. But row data are always the same, even when the car engine is running. If we consider address 034D has 0C in data[2], we have to calculate RPM with FA and 00 decimal values. But they never change.  

I am not sure that we are following the right path. Thank you very much.

Are OBD2 PID codes same for all car manufacturers?

In Wikipedia PID list we can see that 0x0C for Engine RPM, 0x0D vehicle speed etc. Is this same for all car manufacturers? In Arduino examples we can see that data[2] reserves the PID (for engine RPM 0x0C) and by converting hex to decimal data[3] and data[4] of the message and by the formula  

((256*data[3])+data[4])/2

we can get the value of RPM.

But when I try to apply this to Citroen car, I can see 0x0C but the data in the message does not change although real RPM value changes. It means that this does not show RPM on that car.

I am using PCan-View for reading CanBus. Does this affect the result? So can we say there is not general PID values?

Thank you in advance.

Update:

Thank you very much for your answers. Some parts of the data, which includes 0C, can be seen in below.  

86)        91.6  Rx         **0208**  8  18 **0C** 31 00 4C FF FF 27  
99)       101.6  Rx         0208  8  18 **0C** 31 00 4C FF FF 27    
107)      105.3  Rx         **040D**  8  00 00 00 00 00 00 00 **0C**  
114)      114.5  Rx         **034D**  8  00 23 FA FA 00 **0C** 00 FF   
735)      745.1  Rx         040D  8  00 00 00 00 00 00 00 **0C**

These codes repeat many times during the data gathering. But row data always the same even car engine is running. If we consider address 034D has 0C in data[2], we have to calculate RPM with FA and 00 decimal values. But they never change.  

I am not sure that we are following the right path. Thank you very much.

Are OBD-II PID codes the same for all car manufacturers?

In the Wikipedia PID list we can see that 0x0C for engine RPM, 0x0D vehicle speed, etc. Is this same for all car manufacturers? 

In Arduino examples we can see that data[2] reserves the PID (for engine RPM 0x0C) and by converting hex to decimal data[3] and data[4] of the message and by the formula

((256*data[3])+data[4])/2

we can get the value of RPM.

But when I try to apply this to a Citroën car, I can see 0x0C, but the data in the message does not change although the real RPM value changes. It means that this does not show RPM on that car.

I am using PCan-View for reading the CAN bus. Does this affect the result? So can we say there are not general PID values?

 

Thank you very much for your answers. Some parts of the data, which includes 0C, can be seen in below.

86)        91.6  Rx         **0208**  8  18 **0C** 31 00 4C FF FF 27
99)       101.6  Rx         0208  8  18 **0C** 31 00 4C FF FF 27
107)      105.3  Rx         **040D**  8  00 00 00 00 00 00 00 **0C**
114)      114.5  Rx         **034D**  8  00 23 FA FA 00 **0C** 00 FF
735)      745.1  Rx         040D  8  00 00 00 00 00 00 00 **0C**

These codes repeat many times during the data gathering. But row data are always the same, even when the car engine is running. If we consider address 034D has 0C in data[2], we have to calculate RPM with FA and 00 decimal values. But they never change.

I am not sure that we are following the right path.

2 edited tags
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In Wikipedia PID listWikipedia PID list we can see that 0x0C0x0C for Engine RPM, 0x0D0x0D vehicle speed etc. Is this same for all car manufacturers? In Arduino examples we can see that data[2] reserves the PID (for engine RPM 0x0C0x0C) and by converting hex to decimal data[3] and data[4] of the message and by the formula ((256*data[3])+data[4])/2

((256*data[3])+data[4])/2

we can get the value of RPM. 

But when I try to apply this to Citroen car, I can see 0x0C0x0C but the data in the message does not change evenalthough real RPM value changes. It means that this does not show RPM on that car. 

I am using PCan-View for reading CanBus. Does this affect the result? So can we say there is not general PID values? Thank

Thank you in advance.

updateUpdate:

Thank you very much for your answers. Some parts of the data, which includes 0C, can be seen in below.

86)        91.6  Rx         **0208**  8  18 **0C** 31 00 4C FF FF 27  
99)       101.6  Rx         0208  8  18 **0C** 31 00 4C FF FF 27    
107)      105.3  Rx         **040D**  8  00 00 00 00 00 00 00 **0C**  
114)      114.5  Rx         **034D**  8  00 23 FA FA 00 **0C** 00 FF   
735)      745.1  Rx         040D  8  00 00 00 00 00 00 00 **0C**

These codes repeat many times during the data gathering. But row data always the same even car engine is running. If we consider address 034D has 0C in data[2], we have to calculate RPM with FA and 00 decimal values. But they never change.

I am not sure that we are following the right path. Thank you very much.

In Wikipedia PID list we can see that 0x0C for Engine RPM, 0x0D vehicle speed etc. Is this same for all car manufacturers? In Arduino examples we can see that data[2] reserves the PID (for engine RPM 0x0C) and by converting hex to decimal data[3] and data[4] of the message and by the formula ((256*data[3])+data[4])/2 we can get the value of RPM. But when I try to apply this to Citroen car, I can see 0x0C but the data in the message does not change even real RPM value changes. It means that this does not show RPM on that car. I am using PCan-View for reading CanBus. Does this affect the result? So can we say there is not general PID values? Thank you in advance.

update:

Thank you very much for your answers. Some parts of the data, which includes 0C, can be seen in below.

86)        91.6  Rx         **0208**  8  18 **0C** 31 00 4C FF FF 27  
99)       101.6  Rx         0208  8  18 **0C** 31 00 4C FF FF 27    
107)      105.3  Rx         **040D**  8  00 00 00 00 00 00 00 **0C**  
114)      114.5  Rx         **034D**  8  00 23 FA FA 00 **0C** 00 FF   
735)      745.1  Rx         040D  8  00 00 00 00 00 00 00 **0C**

These codes repeat many times during the data gathering. But row data always the same even car engine is running. If we consider address 034D has 0C in data[2], we have to calculate RPM with FA and 00 decimal values. But they never change.

I am not sure that we are following the right path. Thank you very much.

In Wikipedia PID list we can see that 0x0C for Engine RPM, 0x0D vehicle speed etc. Is this same for all car manufacturers? In Arduino examples we can see that data[2] reserves the PID (for engine RPM 0x0C) and by converting hex to decimal data[3] and data[4] of the message and by the formula

((256*data[3])+data[4])/2

we can get the value of RPM. 

But when I try to apply this to Citroen car, I can see 0x0C but the data in the message does not change although real RPM value changes. It means that this does not show RPM on that car. 

I am using PCan-View for reading CanBus. Does this affect the result? So can we say there is not general PID values?

Thank you in advance.

Update:

Thank you very much for your answers. Some parts of the data, which includes 0C, can be seen in below.

86)        91.6  Rx         **0208**  8  18 **0C** 31 00 4C FF FF 27  
99)       101.6  Rx         0208  8  18 **0C** 31 00 4C FF FF 27    
107)      105.3  Rx         **040D**  8  00 00 00 00 00 00 00 **0C**  
114)      114.5  Rx         **034D**  8  00 23 FA FA 00 **0C** 00 FF   
735)      745.1  Rx         040D  8  00 00 00 00 00 00 00 **0C**

These codes repeat many times during the data gathering. But row data always the same even car engine is running. If we consider address 034D has 0C in data[2], we have to calculate RPM with FA and 00 decimal values. But they never change.

I am not sure that we are following the right path. Thank you very much.

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