P0345
DTC P0340 Camshaft Position Sensor Circuit MalfunctionDTC P0341 Camshaft Position Sensor "A" Circuit Range / Performance (Bank 1 or Single Sensor)
DTC P0345 Camshaft Position Sensor "A" Circuit (Bank 2)
DTC P0346 Camshaft Position Sensor "A" Circuit Range / Performance (Bank 2)
DESCRIPTION
DTC Detection Condition:
The VVT sensor consists of a magnet, an iron core and a pick-up coil. This sensor monitors a timing rotor located on the camshaft and is used by the ECM to detect the camshaft angle. The camshaft rotation synchronizes with the crankshaft rotation, and this sensor communicates the rotation of the camshaft timing rotor as a pulse signal to the ECM.
If there is no signal from the VVT sensor even though the engine is turning or the rotation of the camshaft and the crankshaft is not synchronized, the ECM interprets this as a malfunction in the sensor and sets a DTC.
HINT:
- DTC P0340 and P0345 indicate a malfunction related to the VVT sensor (+) circuit (wire harness (from ECM to VVT sensor) and VVT sensor).
- DTC P0341 and P0346 indicate a malfunction related to the VVT sensor (-) circuit (wire harness (from ECM to VVT sensor) and VVT sensor).
Reference: Inspect using an oscilloscope.
During cranking or idling, check the waveform of the ECM connector.
MONITOR DESCRIPTION
Monitor Strategy:
Typical Enabling Conditions:
Typical Malfunction Thresholds:
Component Operating Range:
If there is no signal from the VVT sensor even though the engine is revolving, or if the rotation of the camshaft and the crankshaft is not synchronized, the ECM interprets this as a malfunction of the sensor.
Wiring Diagram:
Step 1-2:
Step 3-4:
INSPECTION PROCEDURE
HINT: Read freeze frame data using the intelligent tester. The ECM records vehicle and driving condition information as freeze frame data the moment a DTC is stored. When troubleshooting, freeze frame data can be helpful in determining whether the vehicle was running or stopped, whether the engine was warmed up or not, whether the air/fuel ratio was lean or rich, as well as other data recorded at the time of a malfunction.