Computers/Controls - ISTA Test Plan Priority Error

2008 Mini Cooper Clubman (R55) L4-1.6L (N12)SECTION Computers/Controls - ISTA Test Plan Priority Error
SI M 07 02 10
Workshop Environment Systems

January 2010
Technical Service

SUBJECT
ISTA Test Plan Priority Error

MODEL
All

SITUATION

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.

CAUSE

When ISTA was introduced, the entire diagnostics from DIS were migrated over to ISTA. Until all of the diagnostic data has been revised within ISTA, this type of error may occur.

PROCEDURE

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.

WARRANTY INFORMATION
For information only
RENDER: 1.0x

NO RELATED

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When to See a Mechanic

Stop DIY work and contact a certified mechanic immediately if any of the following apply:

  • You smell fuel, burning insulation, or see smoke.
  • Brakes feel soft, pull hard to one side, or make grinding noises.
  • The engine overheats, stalls repeatedly, or misfires under load.
  • You are missing required tools, torque specs, or safe lifting equipment.
  • You are not confident in the next step or safety outcome.