P0340 on Toyota
Camshaft Position Sensor Circuit Malfunction
P0340 on Toyota vehicles indicates camshaft position sensor circuit malfunction. Au7o has documented this code across 1 Toyota model — most commonly on Camry. 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. Typical repair costs on Toyota range from $150 to $500, depending on the specific model and root cause.
Common Causes of P0340
- •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)
P0340 on Toyota by Model
Toyota Camry(1 issue)
- Camshaft / Crankshaft Position Sensor Failure (P0335/P0340) Causing Stalling and Crank-No-Start1998-2013
The crankshaft position sensor (P0335) and camshaft position sensor (P0340/P0345) lose signal as they age or their tone-ring reluctor gets contaminated, causing intermittent stalling — a real safety hazard in traffic — and eventually a crank-but-no-start condition. On 2006-2012 2.4L (2AZ-FE) cars, Toyota issued a TSB noting a worn intake camshaft timing gear (VVT gear) can also trigger these codes, a more involved repair than a simple sensor.
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View P0340 across all makes →Frequently Asked Questions
What does P0340 mean on 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 specifically, this code is documented across 1 model.
What causes P0340 on Toyota vehicles?▼
Common causes on Toyota: 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. Specific causes vary by model and year — see the per-model sections below.
How much does it cost to fix P0340 on a Toyota?▼
Repair costs on Toyota range from $150 to $500, depending on the specific model and root cause.
Which Toyota models have P0340 documented?▼
Au7o has documented P0340 on 1 Toyota model: Camry.