For 1990-2009 cars

Check | Causes
--- | ---
DEFINITION: The transmission only provides first gear in Drive range. The vehicle accelerates from a stop in first gear and does not upshift.
Control Valve Body Accumulator Assembly |

• | 1-2 shift control valve stuck applied

• | 1-2 shift valve stuck applied

Control Valve Body Accumulator Assembly | The spacer plate or gasket are mispositioned or damaged
Shift Solenoid Valve |

• | Stuck or damaged

• | Faulty electrical connection