Shift Solenoid C Stuck On
The P0762 code indicates that the transmission control module (TCM) has detected that shift solenoid C is stuck in the 'on' position, meaning it remains energized when it should be off. This solenoid controls hydraulic pressure to a specific clutch or band in the automatic transmission. When stuck on, it can cause harsh shifts, incorrect gear engagement, or transmission slippage. The issue is often due to electrical faults, contaminated transmission fluid, or mechanical failure of the solenoid.
01. Most Common Causes
- Faulty shift solenoid C
- Dirty or contaminated transmission fluid
- Wiring or connector issues in the solenoid circuit
- Internal transmission mechanical failure
02. Symptoms You Will Notice
- Check Engine Light illuminated
- Harsh or erratic shifting
- Transmission stuck in a single gear
- Decreased fuel economy
03. Step-by-Step Diagnosis
Step 1: Scan the vehicle for codes and record freeze frame data.
Step 2: Inspect transmission fluid level and condition; change if dirty.
Step 3: Test solenoid C resistance and power/ground circuits with a multimeter.
Step 4: Perform a transmission pressure test to confirm solenoid operation.
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 it can cause further transmission damage. Limited driving to a repair shop may be acceptable if shifting is still possible.
How much does it cost to fix?▼
Repair costs typically range from $150 to $400, including parts and labor. Solenoid replacement is often $50-$150 for the part plus diagnostic time.