I have been quoted for a replacement transmission. Is that justified?

It might be, but this code alone does not establish it. A short to ground is a circuit fault, not proof of mechanical damage inside the gearbox, and the measurement that tells the two apart is inexpensive: unplug the case connector and check the control pin against chassis ground, then check across the solenoid pins. Those two readings say whether the fault is in the external wiring, in the solenoid, or somewhere that needs the transmission opened. Asking what the case connector measured is a fair question, and a shop that has diagnosed it properly will have the answer.

Can I do that measurement myself?

The measuring part is within reach of anyone comfortable working under a vehicle with it safely supported and the ignition off — it needs a basic multimeter and no specifications at all, because you are looking for the difference between near zero and effectively infinite. What is harder is the rest: identifying the right pin from a wiring diagram, and doing anything about the answer, since a fault inside the transmission means dropping the pan and fluid. Plenty of people do the measurement to understand their quote and then hand the repair over, which is a sensible split.

Why does it drive fine for a few minutes after every start?

Because the module protects itself. When it finds an output shorted to ground it shuts that output down rather than continuing to drive it, and on most systems it will not try again until the ignition has been cycled. So each start buys one fresh attempt, the car behaves, and then the fault returns as soon as that solenoid is needed. It is a recognisable pattern for a short and it should not be read as the problem improving.

Can I keep driving with P0982?

Short journeys, yes — the transmission holds a failsafe strategy and the car will get to a workshop under its own power. Drive gently while you do, because if the fault is producing harsh engagements then every one of those is a shock load through the mounts and driveline. Do not simply clear the code and carry on either: the short is still there, and each restart puts the module's output driver back in front of it, which is how a wiring repair turns into a control module.

OBD-II trouble code

P0982: Shift Solenoid "D" Control Circuit Low

This is one of the very few transmission faults that can be proven or ruled out with a cheap multimeter, from outside the transmission, in about ten minutes. That is worth knowing before accepting a quote to rebuild or replace the unit.

High severityPowertrainTransmission / Shift ControlDrivable short-term

Quick facts

System: Powertrain
Category: Transmission / Shift Control
Severity: High severity
Drivable: Usually safe to drive short-term
Repair cost range: $130 – $1,600
DIY difficulty: Advanced DIY

One of 43 shift solenoid codes

P0982 sits in a grid: one axis is which solenoid the letter refers to, the other is what went wrong with it. Each cell is a genuinely different fault with its own diagnosis — but codes from the same row or column often appear together, and what a pairing means is usually the fastest way in. The hub page lays out all 43 and explains how to read them against each other.

See all shift solenoid codes →

Browse every code in P0900–P0999, or start from the full code library.

What does P0982 mean?

P0982 means the module saw the fourth shift solenoid's control circuit pulled to ground when it had not asked for that. The physical causes are a control wire that has worn through to something earthed, a solenoid winding that has shorted internally, or fluid and corrosion bridging pins in a connector.

What is unusual about this code is how cheap the decisive measurement is, and how often that measurement is skipped. Most transmission diagnosis needs a scan tool, live data, a road test and access to manufacturer specifications. A short to ground needs none of that. The transmission case connector is a boundary that separates the outside world from the inside of the transmission, and it can be unplugged from underneath the vehicle with the ignition off. From there, a resistance measurement between the control pin and a clean chassis ground answers the question directly: a pin that should be electrically isolated reading close to zero ohms means the short is in the external wiring, and a healthy reading there means it is inside the unit. A second measurement across the solenoid's own pins separates a shorted winding from a shorted wire. Two readings, a basic meter, no specifications required.

That is worth spelling out because of what tends to happen to unfamiliar transmissions. A workshop without the application data for a particular multi-speed unit is looking at a transmission code, an expensive-sounding component and no easy way to test it, and the path of least resistance is a quote for a rebuild or an exchange unit. Sometimes that is genuinely the right answer. But a short to ground is not evidence of internal mechanical damage — it is evidence of a circuit fault, and on a meaningful share of these vehicles the repair is a length of wire and a couple of hours. Before agreeing to a four-figure job, it is entirely reasonable to ask what the case connector measured. A shop that has done the work will have the numbers to hand.

None of that means the answer is always cheap. If the short is inside the transmission — a chafed internal harness or a failed winding — the pan has to come off and the bill grows accordingly, and on units where the solenoids come as one assembly it grows more. But that is a conclusion the measurement produces, not an assumption to start from.

One further caution specific to shorted outputs: fix the circuit before fitting anything. The module protects itself by disabling an output it finds shorted, so a new solenoid installed into a circuit that is still faulty gets switched off almost immediately and cannot even be shown to work.

Common causes

Control wire chafed through against the case, a bracket, a heat shield or an exhaust component
Shift solenoid with shorted windings inside the transmission
Fluid or moisture bridging pins to the earthed shell of the case connector
Internal transmission harness worn through against a moving component
Displaced or corroded terminal touching the connector body
Harness trapped or pinched during earlier work under the vehicle
Module output driver failed in the on state and holding the circuit low
Insulation that only breaks down once the transmission reaches full temperature
Wrong replacement solenoid drawing current beyond what the output is rated for

Symptoms

Transmission dropping into a failsafe strategy with several gears unavailable
Harsh or abrupt engagement on the change that uses this solenoid
Engine speed not matching road speed in one part of the range
Fault present when hot and absent on a cold start
Gear ratio code from the P0730 family stored alongside this one
Check engine light with the transmission still moving the car normally at low speed
Repeat fault after a code clear with no repair carried out
Other solenoid circuit codes appearing at the same time on the same connector

Diagnostic steps

1.With the ignition off, unplug the transmission case connector and measure resistance from this control pin to a clean chassis ground; near zero on a pin that should be isolated puts the short in the external wiring.
2.Measure across the solenoid's own pins on the transmission side of that connector to separate a shorted winding from a shorted wire.
3.Treat those two readings as the decision point before considering any rebuild or exchange quote, and ask for them in writing if the work is being done elsewhere.
4.Identify the physical solenoid by connector pin and wiring diagram rather than by the letter in the code, since manufacturer naming differs.
5.Inspect external harness runs where they cross the case, brackets and exhaust components for the polished witness mark that precedes a short.
6.Repeat the wiggle test on a hot transmission after a sustained run, because insulation softens with heat and a cold bay hides the fault.
7.Check whether the module has latched the output off, since a car that behaves for a while after each restart is showing exactly that.
8.Where the short proves internal, plan for the pan to come off and establish whether the shift solenoids are individual or supplied as one assembly.
9.Repair the circuit fully before fitting a solenoid, because the module will disable a new part in seconds if the short is still present.

Repair cost

$130 – $1,600

Diagnosis is $110 to $220 and should include the case connector measurements described above. An external wiring repair is $130 to $400 and is the outcome on a substantial share of these. An individual shift solenoid is $250 to $700 fitted. Where the shift solenoids come as one assembly the part is $450 to $1,400 fitted. A fluid and filter service at $150 to $350 goes with any job that opens the transmission. The figure to be sceptical about is a rebuild or exchange transmission quoted straight off this code without those connector readings, because a short to ground is not by itself evidence of internal mechanical damage.

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DIY vs shop

This is an advanced DIY job. It typically requires specialty tools, scan-tool access, lifting equipment, or careful sequencing to avoid causing new failures. Plan for extended downtime and have a backup vehicle. Most owners are better served by a shop that has done this repair before.