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CASIS: Canadian Automotive Service Information Standard

Reprogramming

Independent shops will have identical Data Stream Information as that provided to the OEM's authorized dealers. As such, the CASIS requires OEMs to provide the necessary information and application to independent service and repair shops to "flash" the vehicle's rewriteable on-board control modules in order to rewrite the relevant system’s software.

The CASIS will allow independent service and repair shops to do the following:

• Flash computer modules
• Update/reset computer modules
• Restart vehicles

The CASIS does not allow independent service and repair shops to do the following:

• Alter any OEM engine or vehicle system control module firmware
• Take vehicles out of compliance with environmental or safety regulations
• Alter the engine performance of vehicles

Further clarification is available via the CASIS Interpretation Guideline #1

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