Solenoids are typically numbered by letters, so the shift solenoid E is actually the 5th solenoid in the transmission, and it may be responsible for a number of gears/actions. If your vehicle has a DTC P0984, it means that the shift solenoid E is not operating according to preprogrammed parameters.
How severe is the code?
A diagnostic code P0984 essentially means that one or more of the gears inside your transmission are about to stop functioning. So yes, it is very serious.
Symptoms
Symptoms of a P0984 include:
- Transmission seems to engage
- Transmission cannot shift into gear
Causes
- Dirty transmission fluid
- Low transmission fluid
- Damaged connectors and/or wiring
- Faulty shift solenoid
How to diagnose the code?
A shift solenoid is used to control the flow of pressurized transmission fluid, so the condition and level of the transmission fluid are extremely important for the operation of said solenoids. Therefore, when trying to diagnose an OBDII fault code P0984, the transmission fluid should be the first thing that is checked. The next thing that needs to be checked is the condition of the wiring and/or connectors along the transmission wiring harness. After that, the shift solenoid E itself will need to be checked.
What repairs will fix P0984?
- Service the transmission
- Replace or repair damaged wiring/connectors
- Replace the shift solenoid