Assessment and Evaluation Flashcards

A customer reports an intermittent check engine light on a VW Jetta. What should the technician do first after verifying the concern?

Answer: Retrieve and record stored DTCs and freeze frame data

Stored codes and freeze frame data show the conditions present when the fault set, which guides the diagnosis.

In ODIS Service, what is the main advantage of using Guided Fault Finding over manual testing?

Answer: It builds a test plan from the vehicle's stored faults and its configuration

Guided Fault Finding reads the vehicle's control modules and faults, then creates a test plan for that specific vehicle.

A fault code shows the status 'sporadic' or 'intermittent'. What does this most likely mean?

Answer: The fault was detected before but is not active right now

A sporadic or intermittent code means the fault occurred earlier but is not present at the moment.

When evaluating brake pad wear on a VW, which measurement matters most for a replace/no-replace decision?

Answer: Remaining pad lining thickness compared to the wear limit

Lining thickness compared to the manufacturer's minimum specification decides whether the pads need replacing.

A technician gets a voltage drop of 0.8 V across a starter ground circuit while cranking. What does this indicate?

Answer: Excessive resistance in the ground path

Ground side drops are normally well under 0.5 V while cranking, so 0.8 V points to high resistance.

Why should a technician road test a vehicle after a repair?

Answer: To confirm the concern is fixed and no new faults appeared

Verifying the repair under real conditions confirms the fix and catches any new issues before delivery.

During a multipoint inspection, tire tread depth is 2/32 inch. How should this be evaluated?

Answer: At the legal minimum in most US states, so replacement is recommended

2/32 inch is the common US legal minimum, so the tires should be replaced.