2017-10-10
Illuminated check engine light
Transmission shifts erratically or not at all
Delayed or harsh shifting
Overheating transmission
Faulty transmission fluid temperature sensor
Wiring or connections in the circuit are damaged or corroded
Failed engine control module (ECM)
Low transmission fluid level
Malfunctioning transmission control module (TCM)
Transmission Fluid Temperature Sensor: Gear fluid line delivers gear fluid/oil between the various gear parts that need lubrication. The Gear fluid temperature sensor monitors the fluid temperature in the line. Problems lead to difficulty in shifting gears
Replace the transmission fluid temperature sensor
Check and repair any damaged wiring or connections
Check and refill transmission fluid level
Replace the engine control module (ECM) if necessary
Replace the transmission control module (TCM) if necessary