Transmission slipping or not shifting properly
Harsh or delayed shifting
Reduced fuel efficiency
Illuminated check engine light
Failed shift solenoid 'E'
Faulty wiring or connections in the circuit
Loose or corroded electrical connections
Failed transmission control module (TCM)
Low transmission fluid level or poor quality fluid
Transmission Shift Sensor: Gear Shift Sensor communicates the position the gear shifted to. Problems lead to difficulty in shifting gears
Replace the shift solenoid 'E'
Check and repair any damaged wiring or connections
Tighten or clean any loose or corroded electrical connections
Replace the transmission control module (TCM) if necessary
Check and fill transmission fluid to the proper level using the correct type of fluid