Shift Solenoid H Stuck On
The P076C code indicates that the Powertrain Control Module (PCM) has detected that shift solenoid H is stuck in the 'on' position. This solenoid controls hydraulic flow to a specific clutch or band within the automatic transmission. When stuck on, it can cause improper gear engagement, harsh shifts, or transmission slippage. The issue may be electrical (short circuit) or mechanical (stuck valve).
1. Symptoms You Will Notice
- Check Engine Light illuminated
- Harsh or erratic shifting
- Transmission stuck in one gear
- Decreased fuel economy
2. Most Common Causes
- Faulty shift solenoid H
- Short circuit in solenoid wiring or connector
- Low or contaminated transmission fluid
- Internal transmission mechanical failure
3. Step-by-Step Diagnosis
Step 1: Scan for codes and record freeze frame data.
Step 2: Inspect transmission fluid level and condition.
Step 3: Test solenoid H resistance and power/ground circuits with a multimeter.
Step 4: Perform a transmission pressure test to confirm solenoid 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 local driving may be possible if the transmission is not slipping excessively.
How much does it cost to fix?▼
Repair costs typically range from $200 to $600, including parts and labor. Solenoid replacement is often $150-$300, plus diagnostic fees.
5. Commonly Affected Makes
This is a generic OBD2 code, potentially applicable to any manufacturer using this diagnostic standard.