What is the solution for the P0340 fault code?

1 Answers
SanFrank
07/29/25 9:07pm
P0340 fault code refers to a malfunction in the Camshaft Position Sensor A circuit, requiring inspection of the camshaft position sensor circuit. Below is more information about automotive fault codes: The function of the Camshaft Position (CMP) sensor is to transmit the camshaft position (relative position of the valves) to the Electronic Control Unit (ECU) in the form of a voltage signal. This fault code appears when the ECU fails to detect the signal from the A (intake/left/front) Camshaft Position (CMP) sensor within a set time period. Possible causes include issues with the CMP sensor circuit, connectors, the sensor itself, or a malfunction in the Powertrain Control Module (PCM) or Engine Control Module (ECM). After troubleshooting the vehicle, the fault code must be cleared. When clearing the code, it is essential to strictly follow the specified method for the particular vehicle model. Under no circumstances should the negative ground cable be disconnected to clear the fault code.
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