Pressure Control Solenoid Control Circuit High
The P2815 code indicates that the Powertrain Control Module (PCM) has detected a high voltage condition in the control circuit of the pressure control solenoid for a specific clutch or gear. This solenoid regulates hydraulic pressure to engage clutches and bands in the automatic transmission. A high circuit voltage typically points to a short to power, faulty solenoid, or internal PCM issue.
1. Most Common Causes
- Short to power in the solenoid control circuit
- Faulty pressure control solenoid
- Damaged wiring or connector
- Internal PCM failure
2. Symptoms You Will Notice
- Check Engine Light illuminated
- Harsh or delayed shifting
- Transmission slipping
- Reduced fuel economy
3. Step-by-Step Diagnosis
Step 1: Scan for additional codes and record freeze frame data.
Step 2: Inspect wiring and connectors for damage, corrosion, or shorts.
Step 3: Test solenoid resistance and compare to manufacturer specs.
Step 4: Check for power and ground at solenoid connector with key on.
Step 5: If wiring and solenoid are good, suspect PCM fault.
4. Frequently Asked Questions
Is it safe to drive with this code?▼
It is not recommended. Driving with a high circuit voltage can cause erratic shifting or transmission damage. Have it diagnosed promptly.
How much does it cost to fix?▼
Repair costs range from $150 to $400, depending on whether the solenoid, wiring, or PCM needs replacement. Labor and parts vary by vehicle.
5. Commonly Affected Makes
This is a generic OBD2 code, potentially applicable to any manufacturer using this diagnostic standard.