Monday, November 19, 2018

Computers/Controls - ISTA Test Plan Priority Error Info.

Disclaimer 2010 BMW 335Cic Convertible (E93) L6-3.0L Turbo (N54) Technical Service Bulletin # 070409 Date: 091101



Computers/Controls - ISTA Test Plan Priority Error Info.



SI B 07 04 09



Workshop Environment Systems



November 2009



Technical Service



SUBJECT



ISTA Test Plan Priority Error



2010 BMW 335Cic Convertible (E93) L6-3.0L Turbo (N54) 261



MODEL



All



When diagnosing a vehicle using ISTA (Integrated Service Technical Application), fault code test plans are intended to be listed by "Priority".



However, the priority given to test plans by ISTA may not be reliable. This may lead to unnecessary diagnosis being performed.



When ISTA was introduced, the entire diagnostics from DIS was migrated over to ISTA. Until all of the diagnostic data has been revised within



ISTA, this type of error may occur.



Before starting diagnosis, the entire test schedule should be considered. Always use fault symptom diagnosis when available~ and use the customer



complaint as the basis for determining which test plan to start first.



Note:



With each ISTA release, the priority given in the test schedule will become more reliable.

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