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# AWS::IoTFleetWise::DecoderManifest ObdSignal
<a name="aws-properties-iotfleetwise-decodermanifest-obdsignal"></a>

Information about signal messages using the on-board diagnostics (OBD) II protocol in a vehicle.

## Syntax
<a name="aws-properties-iotfleetwise-decodermanifest-obdsignal-syntax"></a>

To declare this entity in your CloudFormation template, use the following syntax:

### JSON
<a name="aws-properties-iotfleetwise-decodermanifest-obdsignal-syntax.json"></a>

```
{
  "[BitMaskLength](#cfn-iotfleetwise-decodermanifest-obdsignal-bitmasklength)" : {{String}},
  "[BitRightShift](#cfn-iotfleetwise-decodermanifest-obdsignal-bitrightshift)" : {{String}},
  "[ByteLength](#cfn-iotfleetwise-decodermanifest-obdsignal-bytelength)" : {{String}},
  "[IsSigned](#cfn-iotfleetwise-decodermanifest-obdsignal-issigned)" : {{String}},
  "[Offset](#cfn-iotfleetwise-decodermanifest-obdsignal-offset)" : {{String}},
  "[Pid](#cfn-iotfleetwise-decodermanifest-obdsignal-pid)" : {{String}},
  "[PidResponseLength](#cfn-iotfleetwise-decodermanifest-obdsignal-pidresponselength)" : {{String}},
  "[Scaling](#cfn-iotfleetwise-decodermanifest-obdsignal-scaling)" : {{String}},
  "[ServiceMode](#cfn-iotfleetwise-decodermanifest-obdsignal-servicemode)" : {{String}},
  "[SignalValueType](#cfn-iotfleetwise-decodermanifest-obdsignal-signalvaluetype)" : {{String}},
  "[StartByte](#cfn-iotfleetwise-decodermanifest-obdsignal-startbyte)" : {{String}}
}
```

### YAML
<a name="aws-properties-iotfleetwise-decodermanifest-obdsignal-syntax.yaml"></a>

```
  [BitMaskLength](#cfn-iotfleetwise-decodermanifest-obdsignal-bitmasklength): {{String}}
  [BitRightShift](#cfn-iotfleetwise-decodermanifest-obdsignal-bitrightshift): {{String}}
  [ByteLength](#cfn-iotfleetwise-decodermanifest-obdsignal-bytelength): {{String}}
  [IsSigned](#cfn-iotfleetwise-decodermanifest-obdsignal-issigned): {{String}}
  [Offset](#cfn-iotfleetwise-decodermanifest-obdsignal-offset): {{String}}
  [Pid](#cfn-iotfleetwise-decodermanifest-obdsignal-pid): {{String}}
  [PidResponseLength](#cfn-iotfleetwise-decodermanifest-obdsignal-pidresponselength): {{String}}
  [Scaling](#cfn-iotfleetwise-decodermanifest-obdsignal-scaling): {{String}}
  [ServiceMode](#cfn-iotfleetwise-decodermanifest-obdsignal-servicemode): {{String}}
  [SignalValueType](#cfn-iotfleetwise-decodermanifest-obdsignal-signalvaluetype): {{String}}
  [StartByte](#cfn-iotfleetwise-decodermanifest-obdsignal-startbyte): {{String}}
```

## Properties
<a name="aws-properties-iotfleetwise-decodermanifest-obdsignal-properties"></a>

`BitMaskLength`  <a name="cfn-iotfleetwise-decodermanifest-obdsignal-bitmasklength"></a>
 The number of bits to mask in a message.  
*Required*: No  
*Type*: String  
*Minimum*: `1`  
*Maximum*: `8`  
*Update requires*: [No interruption](https://docs.aws.amazon.com/AWSCloudFormation/latest/UserGuide/using-cfn-updating-stacks-update-behaviors.html#update-no-interrupt)

`BitRightShift`  <a name="cfn-iotfleetwise-decodermanifest-obdsignal-bitrightshift"></a>
 The number of positions to shift bits in the message.  
*Required*: No  
*Type*: String  
*Minimum*: `0`  
*Maximum*: `2147483647`  
*Update requires*: [No interruption](https://docs.aws.amazon.com/AWSCloudFormation/latest/UserGuide/using-cfn-updating-stacks-update-behaviors.html#update-no-interrupt)

`ByteLength`  <a name="cfn-iotfleetwise-decodermanifest-obdsignal-bytelength"></a>
The length of a message.  
*Required*: Yes  
*Type*: String  
*Minimum*: `1`  
*Maximum*: `8`  
*Update requires*: [No interruption](https://docs.aws.amazon.com/AWSCloudFormation/latest/UserGuide/using-cfn-updating-stacks-update-behaviors.html#update-no-interrupt)

`IsSigned`  <a name="cfn-iotfleetwise-decodermanifest-obdsignal-issigned"></a>
Determines whether the message is signed (`true`) or not (`false`). If it's signed, the message can represent both positive and negative numbers. The `isSigned` parameter only applies to the `INTEGER` raw signal type, and it doesn't affect the `FLOATING_POINT` raw signal type. The default value is `false`.  
*Required*: No  
*Type*: String  
*Update requires*: [No interruption](https://docs.aws.amazon.com/AWSCloudFormation/latest/UserGuide/using-cfn-updating-stacks-update-behaviors.html#update-no-interrupt)

`Offset`  <a name="cfn-iotfleetwise-decodermanifest-obdsignal-offset"></a>
The offset used to calculate the signal value. Combined with scaling, the calculation is `value = raw_value * scaling + offset`.  
*Required*: Yes  
*Type*: String  
*Update requires*: [No interruption](https://docs.aws.amazon.com/AWSCloudFormation/latest/UserGuide/using-cfn-updating-stacks-update-behaviors.html#update-no-interrupt)

`Pid`  <a name="cfn-iotfleetwise-decodermanifest-obdsignal-pid"></a>
The diagnostic code used to request data from a vehicle for this signal.  
*Required*: Yes  
*Type*: String  
*Minimum*: `0`  
*Maximum*: `2147483647`  
*Update requires*: [No interruption](https://docs.aws.amazon.com/AWSCloudFormation/latest/UserGuide/using-cfn-updating-stacks-update-behaviors.html#update-no-interrupt)

`PidResponseLength`  <a name="cfn-iotfleetwise-decodermanifest-obdsignal-pidresponselength"></a>
The length of the requested data.  
*Required*: Yes  
*Type*: String  
*Minimum*: `1`  
*Maximum*: `2147483647`  
*Update requires*: [No interruption](https://docs.aws.amazon.com/AWSCloudFormation/latest/UserGuide/using-cfn-updating-stacks-update-behaviors.html#update-no-interrupt)

`Scaling`  <a name="cfn-iotfleetwise-decodermanifest-obdsignal-scaling"></a>
A multiplier used to decode the message.  
*Required*: Yes  
*Type*: String  
*Update requires*: [No interruption](https://docs.aws.amazon.com/AWSCloudFormation/latest/UserGuide/using-cfn-updating-stacks-update-behaviors.html#update-no-interrupt)

`ServiceMode`  <a name="cfn-iotfleetwise-decodermanifest-obdsignal-servicemode"></a>
The mode of operation (diagnostic service) in a message.  
*Required*: Yes  
*Type*: String  
*Minimum*: `0`  
*Maximum*: `2147483647`  
*Update requires*: [No interruption](https://docs.aws.amazon.com/AWSCloudFormation/latest/UserGuide/using-cfn-updating-stacks-update-behaviors.html#update-no-interrupt)

`SignalValueType`  <a name="cfn-iotfleetwise-decodermanifest-obdsignal-signalvaluetype"></a>
The value type of the signal. The default value is `INTEGER`.  
*Required*: No  
*Type*: String  
*Allowed values*: `INTEGER | FLOATING_POINT`  
*Update requires*: [No interruption](https://docs.aws.amazon.com/AWSCloudFormation/latest/UserGuide/using-cfn-updating-stacks-update-behaviors.html#update-no-interrupt)

`StartByte`  <a name="cfn-iotfleetwise-decodermanifest-obdsignal-startbyte"></a>
Indicates the beginning of the message.  
*Required*: Yes  
*Type*: String  
*Minimum*: `0`  
*Maximum*: `2147483647`  
*Update requires*: [No interruption](https://docs.aws.amazon.com/AWSCloudFormation/latest/UserGuide/using-cfn-updating-stacks-update-behaviors.html#update-no-interrupt)