Section 9 (Engine Controls - Tests W/Codes - Transmission)
WARNING: This page does not describe the selected car, but rather 24 other vehicles, including the 1992 GMC Yukon, 1992 GMC Vandura Special, 1992 GMC Vandura, 1992 GMC Value Van, and 1992 GMC Suburban. However, it is still accessible from the selected car via links, so may be relevant.
- Introduction
- Self-Diagnostic System
- Trouble Code Charts
- Component Check Charts
- Code 28, Pressure Switch Manifold Fault
- Code 39, Torque Converter Clutch Stuck "Off"
- Code 53, System Voltage High
- Code 58, Transmission Temp. Sensor CKT (High Temp. Indicated)
- Code 59, Transmission Temp. Sensor CKT (Low Temp. Indicated)
- Code 68, Overdrive Ratio Error
- Code 73, Force Motor Current (Current Error)
- Code 75, System Voltage Low
- Code 81, QDM Fault (Solenoid "B")
- Code 82, QDM Fault (Solenoid "A")
- Code 83, TCC QDM Fault
- Code 85, Undefined Ratio
- Code 86, Shift Solenoid "B" Stuck "On"
- Code 87, Shift Solenoid "B" Stuck "Off"
- Output Speed Sensor Circuit Check (2WD) "C/K/G & P" Series
- Output Speed Sensor Circuit Check (4WD)
- Input Speed Sensor Circuit Check
- Brake Signal Circuit Check
- Torque Converter Clutch (TCC) Circuit Check
- Shift Solenoid "A" Circuit Check
- Shift Solenoid "B" Circuit Check
- Force Motor Circuit Check