DTC P0340 — Camshaft Position Sensor A Circuit (Bank 1)
P0340 indicates: Camshaft Position Sensor A Circuit (Bank 1).
Diagnostic summary
P0340
What it means
Camshaft Position Sensor A Circuit (Bank 1)
Can you drive?
🛑 Do not drive
Urgency
High 7/10
Typical price
$60 – $300
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Updated Jul 9, 2026 Seen on Powertrain
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ℹ️ What does it mean?
Camshaft Position Sensor A Circuit (Bank 1)
🔍 Symptoms
- • Check Engine Light on
- • Reduced engine performance
- • Increased fuel consumption
- • Unusual engine behavior
⚠️ Possible Causes
- ⚠ Faulty camshaft sensor
- ⚠ Wiring issue
- ⚠ Damaged reluctor ring
- ⚠ ECM fault
🚗 Can I drive with this code?
Do not drive
Not safe to continue driving. Repair immediately.
🔧 How to Diagnose
- 1 Read DTCs with OBD-II scanner
- 2 Check freeze frame data
- 3 Inspect related components
- 4 Clear codes and test drive
🛠️ How to Fix
- 1 Replace cam sensor
- 2 Repair wiring
- 3 Inspect reluctor ring
💰 Estimated Repair Cost
Repair cost by car / region
Early rough estimate. Accuracy improves as more real repair stories are added.
DIY / parts$21 – $195
Mechanic / labor$27 – $225
Repair range$60 – $300
❓ FAQ
What does P0340 mean?
Camshaft Position Sensor A Circuit (Bank 1)
How serious is P0340?
Severity: high. Not safe to continue driving. Repair immediately.
How much does it cost to fix P0340?
Estimated repair cost: $60–$300 depending on vehicle and region.
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