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This is an electrical/circuit code, not a timing code. P0013 is set when the PCM sees an open, short, or out-of-range resistance in the exhaust OCV solenoid wiring. A Bluetooth OBD2 scanner can command the solenoid on/off live to confirm the circuit before you replace the valve. See top-rated scanners on Amazon ↑
🗺️ Where Is the Problem?
Blueprint view - P0013 electrical fault at the Bank 1 exhaust VVT/OCV solenoid circuit
These are statistical causes across ALL vehicles - your exact car may rank differently
For example, on a Honda 4-cyl the downstream O2 sensor causes P0013 64% of the time, but on a GM 5.3L V8 the catalytic converter is the cause 71% of the time. Get a probability ranking built specifically for your year, make, model, and mileage.
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🎯 Top Causes & Probability
85%
#1 - Most Likely
Failed Exhaust OCV Solenoid (Bank 1)
The exhaust camshaft oil control valve (OCV) solenoid winding has failed open or shorted. Internal wear, contamination, and heat cycling eventually break down the solenoid coil. Resistance should typically read 6–12 ohms - out of spec confirms the valve.
🔩 Part
$45–$160
👨🔧 Labor
$60–$140
⚡ DIY Difficulty
Easy
15%
#2 - Check First
Damaged Wiring or Connector
Corroded pins, a chafed harness, or a melted connector at the exhaust OCV is a frequent cause - especially on engines where the connector sits near hot exhaust. Wiggle-test the connector with the engine running and watch for the code to set.
🔩 Part
$10–$60
👨🔧 Labor
$60–$120
⚡ DIY Difficulty
Easy
5%
#3 - Less Common
PCM/Driver Circuit Fault
Rarely the PCM's internal driver for the OCV solenoid fails. Always rule out the solenoid and wiring first - ohm-test the harness end-to-end and verify reference voltage before condemning the PCM.
🔩 Part
$300–$1,200
👨🔧 Labor
$80–$200
⚡ DIY Difficulty
Hard
🚗 Most Affected Vehicles
🔧 Step-by-Step Diagnosis
- Scan and confirm the code - Use an OBD2 scanner to confirm P0013 is current and capture freeze-frame data. Note any companion codes (P0014, P0015, P0016) - combos point to a different root cause.
- Inspect the exhaust OCV connector - Locate the exhaust camshaft solenoid (cylinder head, exhaust side, Bank 1). Unplug the connector and inspect for corroded pins, oil contamination, or melted plastic from exhaust heat.
📍 Find a Trusted Shop Near You
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Tips for Choosing a Shop
- Ask if they charge a diagnostic fee and whether it applies toward the repair
- Request a written estimate before approving any work
- Ask specifically about the part brand - OEM vs. aftermarket matters for this code
- Check Google reviews for recent mentions of the specific repair you need