P0340 on Toyota: How to Diagnose & Fix
Camshaft Position Sensor Circuit Malfunction
1 Toyota model · 1 documented issue
P0340 on Toyota by model: symptoms, diagnosis and fix
Toyota T-SB-0192-12 addresses an intermittent P0335 on specified 2007-2009 Camry 2AZ-FE and 2007-2011 Camry Hybrid 2AZ applications. The bulletin applies only when freeze-frame data shows the engine at approximately 185°F or above and near idle below 1,000 rpm; otherwise Toyota directs normal repair-manual diagnosis. The documented condition concerns the intake camshaft timing gear, not a blanket crankshaft- or camshaft-position-sensor failure. Toyota also notes that battery voltage below 11 volts can contribute to P0335 or P0340 and must be corrected first.
Common Symptoms
- Intermittent malfunction indicator lamp
- DTC P0335 stored with hot near-idle freeze-frame data
How to Fix
Confirm the VIN/VDS and powertrain, preserve freeze-frame data, and test the 12-volt battery and supply voltage before replacing parts. Apply T-SB-0192-12 only when P0335 occurred at the bulletin's operating-temperature and near-idle gates; the Toyota procedure then installs the improved intake camshaft timing gear and completes the specified timing work. If those gates do not match, or another code such as P0340 is present, follow the repair manual. Do not order either prior position sensor from this card.
Owner tips & cautions
- TipSave freeze-frame temperature, engine speed and battery voltage before clearing P0335; those values determine whether T-SB-0192-12 applies.
- WarningDo not replace a crankshaft or camshaft position sensor from the code alone. Toyota's exact bulletin repair is an intake camshaft timing gear after VIN/VDS and freeze-frame gates are satisfied.
Sources for this issue (2)
P0340 code reference
General diagnostic-code context. The code alone does not confirm a cause for your vehicle; use the applicable issue card and its sources.
Frequently asked questions
What does P0340 mean on a Toyota?
P0340 stands for "Camshaft Position Sensor Circuit Malfunction." This code means the engine computer lost or received an erratic signal from the camshaft position sensor. That sensor tells the computer the exact position and speed of the camshaft, which it uses together with the crankshaft sensor to time fuel injection and spark precisely. When the camshaft signal is missing, intermittent, or out of range, the computer sets P0340. Symptoms often include hard starting, stalling, rough running, or a no-start because the engine can't time itself correctly. On Toyota it is documented across 1 model: Camry.
What are the most common causes of P0340?
The most common causes of P0340 are: Failed camshaft position sensor, Corroded or loose sensor connector, Damaged or shorted sensor wiring, Bad reluctor/tone ring on the camshaft, Loose timing chain/belt or jumped timing, Metal debris or oil contamination on the sensor tip, Poor sensor power or ground supply, Faulty PCM/ECM (rare). The specific cause varies by vehicle.
How much does it cost to fix P0340 on a Toyota?
Repair costs vary widely with the root cause and Toyota model; each issue on this page carries its own estimate where one is published.
Looking for P0340 on a different make?
View P0340 across all makes →Content compiled with AI assistance using NHTSA complaints, TSBs, and owner reports. May contain errors. Always verify with your vehicle's service manual.