P0960: Pressure Control Solenoid A Control Circuit/Open
The P0960 code indicates a malfunction in the electrical circuit of the pressure control solenoid 'A'. This solenoid regulates hydraulic pressure within the automatic transmission to control shift feel and timing. An open circuit means there is a break in the wiring or connector, preventing the solenoid from receiving proper voltage or ground. This can cause harsh or delayed shifts, slipping, or even transmission damage if ignored.
1. Symptoms You Will Notice
- Check Engine Light illuminated
- Harsh or erratic shifting
- Transmission slipping or delayed engagement
- Reduced fuel economy
2. Most Common Causes
- Open or shorted wiring in the solenoid circuit
- Faulty pressure control solenoid
- Corroded or damaged connector
- Failed transmission control module (TCM)
3. Step-by-Step Diagnosis
Step 1: Scan for codes and record freeze frame data.
Step 2: Visually inspect wiring and connectors for damage, corrosion, or loose pins.
Step 3: Test solenoid resistance with a multimeter (typically 4-6 ohms).
Step 4: Check for voltage and ground at the solenoid connector with key on.
Step 5: If wiring and solenoid are good, test TCM output signals.
4. Frequently Asked Questions
Is it safe to drive with this code?▼
It is not recommended. Driving with P0960 can cause harsh shifting, transmission slipping, and potential internal damage. Have it diagnosed and repaired promptly.
How much does it cost to fix?▼
Repair costs typically range from $200 to $600, depending on the cause. A solenoid replacement may cost $150-$400 for parts and labor, while wiring repairs are usually less. TCM replacement can exceed $800.
5. Commonly Affected Makes
This is a generic OBD2 code, potentially applicable to any manufacturer using this diagnostic standard.