Shift solenoids function as small traffic control devices, which are used by the ECU to direct the flow of pressurized transmission fluid through the gearbox. This allows clutches and gears to be moved inside the transmission and shift gears. If the ECU detects low voltage in the shift solenoid D control circuit, it will store a DTC P0982.
How severe is the code?
Although transmission issues related to a diagnostic trouble code P0982 may not seem very significant at first. They will eventually become very serious and hinder the safe operation of your vehicle.
Symptoms
Symptoms of a P0982 include:
- Exceptionally hard
- The transmission cannot shift into gear
Causes
- Low transmission fluid
- Dirty fluid/filter
- Damaged wiring and/or corroded or broken connectors
- Malfunctioning shift solenoid
How to diagnose the code?
The level and condition of the transmission fluid are the first things that need to be checked when attempting to diagnose an OBDII P0982 fault code. The next thing to check is the condition of the wiring and connectors along the transmission wiring harness. If no broken wires or damaged connectors are found, the D shift solenoid itself must be tested.
What repairs will fix P0982?
- Service the transmission
- Replace or repair damaged wiring/connectors
- Replace the shift solenoid