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. This solenoid controls hydraulic pressure to engage a specific gear (usually 3rd or 4th). When stuck on, it can cause harsh shifts, incorrect gear engagement, or transmission slippage. The issue may be electrical (wiring, connector, TCM) or mechanical (blocked solenoid valve).
1. Symptoms You Will Notice
- Check Engine Light on
- Harsh or delayed shifts
- Transmission stuck in one gear
- Poor fuel economy
- Transmission slipping
2. Most Common Causes
- Faulty shift solenoid C
- Damaged wiring or connector to solenoid C
- Low or contaminated transmission fluid
- Internal transmission mechanical failure
- Faulty TCM
3. Step-by-Step Diagnosis
Step 1: Scan for codes and record freeze frame data.
Step 2: Check transmission fluid level and condition.
Step 3: Inspect wiring and connector to solenoid C for damage or corrosion.
Step 4: Test solenoid C resistance and operation with a multimeter or scan tool.
Step 5: If solenoid is faulty, replace it; if wiring issue, repair as needed.
4. Frequently Asked Questions
Is it safe to drive with this code?▼
It is not recommended. Driving with a stuck solenoid can cause further transmission damage, leading to costly repairs. Have it diagnosed and repaired promptly.
How much does it cost to fix?▼
The cost typically ranges from $150 to $400, including parts and labor. Replacing a solenoid is often $50-$150 for the part and $100-$250 for labor, depending on vehicle accessibility.
5. Commonly Affected Makes
This is a generic OBD2 code, potentially applicable to any manufacturer using this diagnostic standard.