Troubleshooting

DTC P0346 CAMSHAFT POSITION SENSOR "A" CIRCUIT RANGE/PERFORMANCE (BANK 2)

CIRCUIT DESCRIPTION

DTC Detecting Condition:

The VVT sensor (VV signal) consists of a magnet, iron core and pick-up coil.

The VV signal plate has 3 teeth on its outer circumference and is installed the camshaft timing gear. When the camshafts rotate, the protrusion on the signal plate and the air gap on the pick-up coil change, causing fluctuations in the magnetic field and generating an electromotive force in the pick-up coil. The actual camshaft angle is detected by the VVT sensor and it provides feedback to the ECM to control the intake valve timing in response to the driving condition.

Wiring Diagram:

Step 1 - 2:

Step 3 - 4:

INSPECTION PROCEDURE

HINT:
- If DTC P0345 is displayed, check the left bank VVT sensor (Camshaft position sensor NO.1).
- If DTC P0346 is displayed, check the right bank VVT sensor (Camshaft position sensor NO.1).
- Read freeze frame data using the hand-held tester or the OBD II scan tool, as freeze frame data records the engine conditions when a malfunction is detected. When troubleshooting, this is useful for determining whether the vehicle was running or stopped, the engine was warmed up or not, the air-fuel ratio was lean or rich, etc. at the time of the malfunction.