P0340 on Chrysler
Camshaft Position Sensor Circuit Malfunction
P0340 on Chrysler vehicles indicates camshaft position sensor circuit malfunction. Au7o has documented this code across 1 Chrysler model — most commonly on Prowler. 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 Chrysler range from $150 to $600, 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 Chrysler by Model
Chrysler Prowler(1 issue)
- 3.5L Cam/Crank Sensor O-ring & Valve Cover Oil Weeping1997-2002
The Chrysler 3.5L SOHC V6 is known to weep oil from the camshaft position sensor O-ring and valve-cover sealing surfaces as the rubber hardens with age. On the low-mileage, long-parked Prowler fleet this shows up as oil residue on the block, a burning-oil smell, and occasionally an oil-contaminated cam sensor connector. Left unaddressed it can foul the sensor and contaminate wiring.
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View P0340 across all makes →Frequently Asked Questions
What does P0340 mean on Chrysler?▼
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 Chrysler specifically, this code is documented across 1 model.
What causes P0340 on Chrysler vehicles?▼
Common causes on Chrysler: 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 Chrysler?▼
Repair costs on Chrysler range from $150 to $600, depending on the specific model and root cause.
Which Chrysler models have P0340 documented?▼
Au7o has documented P0340 on 1 Chrysler model: Prowler.