Home >> GMC >> 1991 >> Value Van 7.4 N >> Repair and Diagnosis >> Transmission >> Automatic Trans >> Diagnosis - A/T >> Diagnostic Flow Charts (Cars) >> Chart C-8B, 4T60 Transaxle Shift Solenoid Functional Check - 3.8L PFI (VIN L & 1) 1992 >> Brake Indicator Light Not On