Shift Solenoid Control Circuit Low Voltage
The P0982 code indicates that the powertrain control module (PCM) has detected a low voltage condition in the control circuit of the shift solenoid 'A' (or specific solenoid depending on vehicle). This solenoid is responsible for directing hydraulic fluid to engage specific gears in the automatic transmission. A low voltage reading suggests a short to ground, open circuit, or faulty solenoid, which can cause erratic shifting, harsh engagement, or transmission slippage.
01. Most Common Causes
- Faulty shift solenoid
- Wiring or connector damage (short to ground or open circuit)
- Low transmission fluid level or dirty fluid
- Failed PCM (rare)
02. Symptoms You Will Notice
- Check Engine Light illuminated
- Harsh or delayed shifts
- Transmission stuck in limp mode or a single gear
- Decreased fuel economy
03. Step-by-Step Diagnosis
Step 1: Scan for codes and record freeze frame data.
Step 2: Inspect transmission fluid level and condition.
Step 3: Visually check wiring and connectors for damage, corrosion, or loose connections.
Step 4: Test solenoid resistance with a multimeter (typically 20-40 ohms).
Step 5: Check for voltage at solenoid connector with ignition on (should be near battery voltage).
04. Commonly Affected Makes
05. Frequently Asked Questions
Is it safe to drive with this code?▼
It is not recommended to drive long distances as the transmission may shift erratically or fail, potentially causing further damage.
How much does it cost to fix?▼
Repair costs typically range from $150 to $400, including parts and labor, depending on the cause and vehicle.