Troubleshooting

DTC P0345 CAMSHAFT POSITION SENSOR "A" CIRCUIT (BANK 2)

CIRCUIT DESCRIPTION

DTC Detecting Condition:

VVT sensor LH (camshaft position sensor No.1 (Bank 2)) consists of a magnet and IC circuit board in which MR device is built.

On the signal plate for VVT signal, there are three convex on its outer circumference.

When the camshaft turns, the air-gap between the protrusion on the signal plate and the sensor will change, and then the magnetic field applied to the MR device in the sensor will change. A signal is output based on the change in resistance of MR device caused by these changes. In addition, VVT sensor LH adopts a sensor using a signal plate and a magnetic resistance element. By switching the air-gap of the signal plate and the sensor, ECM voltage will be converted to a rectangular move and output as a signal.

Wiring Diagram:

Step 1 - 2:

Step 3 - 4:

Step 5:

INSPECTION PROCEDURE

HINT:
- If DTC P0345, P0347 or P0348 is displayed, check left bank VVT sensor (Camshaft position sensor No.1).
- Read freeze frame data using hand-held tester or the OBD II scan tool, as freeze frame data records the engine conditions when a malfunction is detected. When troubleshooting, it 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.

CHECK FOR INTERMITTENT PROBLEMS

Hand-held tester only:
By putting the vehicle's ECM in the check mode, the 1 trip detection logic is possible instead of 2 trip detection logic and sensitivity the to detect open circuits is increased. This makes it easier to detect intermittent problems.

1. Clear the DTC.
2. Set the check mode.
3. Perform a simulation test.
4. Check the connector and terminal.
5. Handle the connector.