EPC Solenoid Short Intermittent
The P1760 code indicates an intermittent short circuit in the EPC (Electronic Pressure Control) solenoid circuit. This solenoid regulates transmission line pressure based on engine load and throttle position. An intermittent short can cause erratic shifting, harsh engagement, or loss of power. The issue may stem from damaged wiring, a faulty solenoid, or a failing transmission control module (TCM).
01. Most Common Causes
- Damaged or corroded wiring/connectors in the EPC solenoid circuit
- Faulty EPC solenoid (internal short)
- Intermittent short in the transmission control module (TCM)
02. Symptoms You Will Notice
- Check Engine Light or Transmission Warning Light on
- Erratic or harsh shifting, slipping, or delayed engagement
03. Step-by-Step Diagnosis
Step 1: Scan for codes and record freeze frame data.
Step 2: Visually inspect EPC solenoid wiring and connectors for damage, corrosion, or loose pins.
Step 3: Measure resistance of the EPC solenoid (typically 2.5-6.5 ohms) and compare to specs.
Step 4: Check for shorts to ground or power in the circuit using a multimeter.
Step 5: If wiring and solenoid are good, test TCM output signals and consider TCM replacement.
04. Commonly Affected Makes
05. Frequently Asked Questions
Is it safe to drive with this code?▼
It is not recommended to drive long distances as the transmission may shift erratically or fail, potentially causing a safety hazard.
How much does it cost to fix?▼
Repair costs typically range from $50 to $150 for wiring repairs or solenoid replacement, but TCM replacement can cost $500-$1000.