Check engine light diagnosis is replace shift solenoid valve. Failed SSU DSL.

The most common causes are Automatic Transmission, Automatic Transmission Shift Solenoid, Engine Control Module (ECM), or wiring. Each have a different cost. Recommend if you still have this problem and want it properly diagnosed and repaired before it possibly causes more damage to call Roy 456-0722 and make sure to let him know if you want a $10 rental car