Volkswagen TSB #V201503 2031426
2014 Volkswagen Jetta
Affected Component: ELECTRICAL SYSTEM
- Technical Bulletin: High Pressure Fuel Pump Diagnosis. Completing the GFF high pressure pump function test is essential to diagnose proper pump operation and to avoid unnecessary replacements. This document contains the procedure to update the programming on the diagnostic hardware. This document contains the fault codes necessary to check the warranty coverage for servicing this issue.