LEMON Manuals: Even more car manuals for everyone
Home >> Chevrolet >> 1996 >> Corvette Base, 2D Convertible, 5.7 P >> Repair and Diagnosis >> External Pages >> Different car >> Section 8 (Engine Controls - Tests W/Codes) >> ECM/Pcm Code Charts >> Code 91, 1-4 Upshift Light >> Circuit Description

Circuit Description

WARNING: This page is about a different car, the 1995 Chevrolet Corvette. However, it is still accessible from the selected car via links, so may be relevant.

When 1-4 shift light is energized, PCM is energizing 2nd-3rd blockout relay and gearshift can only be moved from 1st to 4th gear. This will occur only once per upshift cycle. Upshift can not be repeated until vehicle speed drops to less than one MPH.

scientia non olet · About LEMON Manuals