P0752: Shift Solenoid A Stuck On
The P0752 code indicates that the Powertrain Control Module (PCM) has detected that shift solenoid 'A' is stuck in the 'on' position. This solenoid controls hydraulic flow to the transmission's valve body to engage specific gears. When stuck on, it can cause improper gear engagement, harsh shifts, or transmission slippage. The issue is often electrical (wiring, connector) or mechanical (blocked fluid passages, solenoid failure).
01. Most Common Causes
- Faulty shift solenoid A
- Dirty or contaminated transmission fluid
- Short or open in solenoid wiring or connector
- Internal transmission mechanical failure
02. Symptoms You Will Notice
- Check Engine Light illuminated
- Harsh or erratic shifting
- Transmission stuck in one gear (limp mode)
- Poor 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; change if dirty.
Step 3: Test solenoid A resistance and power/ground circuits with a multimeter.
Step 4: Check wiring and connectors for damage, corrosion, or loose pins.
Step 5: If electrical tests pass, remove valve body and test solenoid operation; replace if stuck.
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 poorly or enter limp mode, potentially causing further damage.
How much does it cost to fix?▼
Repair costs vary: DIY solenoid replacement can be $50-$150 for parts; professional labor adds $200-$400. If internal damage is found, costs can exceed $1,000.