P2617: Crankshaft Position Signal Output Circuit/Open
The P2617 code indicates that the Engine Control Module (ECM) has detected an open or malfunction in the crankshaft position sensor output circuit. This sensor is critical for engine timing and fuel injection synchronization. An open circuit means there is a break in the wiring or a faulty sensor, preventing the signal from reaching the ECM. This can cause the engine to run poorly or not start at all.
01. Most Common Causes
- Open or shorted wiring in the crankshaft position sensor circuit
- Faulty crankshaft position sensor
- Damaged connector or poor electrical connection
- Failed ECM (rare)
02. Symptoms You Will Notice
- Engine cranks but does not start
- Engine misfires or runs rough
- Check Engine Light illuminated
- Stalling or hesitation during acceleration
03. Step-by-Step Diagnosis
Step 1: Use an OBD2 scanner to confirm the code and check for related codes.
Step 2: Visually inspect the crankshaft position sensor wiring and connector for damage, corrosion, or loose connections.
Step 3: Test the sensor resistance and voltage output with a multimeter according to manufacturer specifications.
Step 4: If sensor and wiring are okay, check for continuity between sensor and ECM; repair or replace as needed.
04. Commonly Affected Makes
05. Frequently Asked Questions
Is it safe to drive with this code?▼
No, it is not safe. The engine may stall or fail to start, leading to a breakdown or accident. Have the vehicle towed to a repair shop.
How much does it cost to fix?▼
Typically $50-$150 for diagnosis and sensor replacement, plus labor. Costs vary by vehicle make and model.