OBD Code P0982: Shift Solenoid D Control Circuit Low

Q: What does OBD code P0982 mean?

Shift Solenoid D Control Circuit Low. The transmission control computer detects that Shift Solenoid D isn't receiving enough electrical power to operate properly. It's like a valve that's supposed to click open but the electrical signal is too weak to make it work.

Q: What are the symptoms of fault code P0982?

Check engine light illuminated, Transmission stuck in limp mode or single gear, Hard or delayed gear shifts

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What This Actually Means

In plain language — no jargon

The transmission control computer detects that Shift Solenoid D isn't receiving enough electrical power to operate properly. It's like a valve that's supposed to click open but the electrical signal is too weak to make it work.

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Symptoms You May Notice

3 known symptoms for this code

Check engine light illuminated

Transmission stuck in limp mode or single gear

Hard or delayed gear shifts

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Embedded Systems Insight

What the ECU/ECM is actually computing

The ECU monitors the control circuit voltage and current supplied to Shift Solenoid D. It detects when the voltage or current drops below the minimum threshold needed to energize the solenoid coil, indicating a wiring or connector fault.

Voltage & Parameter Thresholds

Parameter	Normal Range	Fault Condition
Solenoid Control Voltage	11-14 volts	Below 8 volts or open circuit
Solenoid Coil Resistance	5-15 ohms	Above 20 ohms or infinite (open)

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Diagnostic & DIY Fix Guide

Check these in order — from cheapest to most complex

1

Battery and connections

Clean corroded battery terminals and ensure secure connections to restore voltage to the transmission control circuit.

2

Wiring harness and connectors

Inspect the solenoid D control circuit wiring for pinched, corroded, or loose connectors and repair or reseat as needed.

3

Shift Solenoid D

Replace the solenoid if resistance testing shows an open coil or if voltage is present but the solenoid is unresponsive.