P2737 - Pressure Control Solenoid Control Circuit Range/Performance
The P2737 code indicates that the Powertrain Control Module (PCM) has detected a range or performance issue in the control circuit of the pressure control solenoid. This solenoid regulates hydraulic pressure within the transmission to control shift timing and firmness. The code is set when the actual solenoid response does not match the commanded value, often due to electrical faults, mechanical sticking, or low transmission fluid.
1. Most Common Causes
- Faulty pressure control solenoid
- Wiring or connector issues in the solenoid circuit
- Low or contaminated transmission fluid
- Internal transmission mechanical failure
2. Symptoms You Will Notice
- Check Engine Light illuminated
- Harsh or delayed shifting
- Transmission slipping or overheating
- Reduced fuel economy
3. Step-by-Step Diagnosis
Step 1: Scan for codes and record freeze frame data.
Step 2: Inspect transmission fluid level and condition; top off or replace if necessary.
Step 3: Visually check wiring and connectors for damage, corrosion, or loose connections.
Step 4: Test solenoid resistance and supply voltage with a multimeter; compare to manufacturer specs.
Step 5: If electrical tests pass, perform a transmission pressure test to verify mechanical operation.
4. 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 is acceptable if shifting is still manageable.
How much does it cost to fix?▼
The cost typically ranges from $50 to $150 for diagnosis and solenoid replacement, but can be higher if internal transmission repairs are needed.
5. Commonly Affected Makes
This is a generic OBD2 code, potentially applicable to any manufacturer using this diagnostic standard.