DTC P0340-11: Camshaft Position Sensor "A" Bank 1 or Single Sensor Circuit Short to Ground; DTC P0340-15: Camshaft Position Sensor "A" Bank 1 or Single Sensor Circuit Short to Battery or Open [12/2019 - 10/2022]: Description
WARNING: This page is about a different variant/trim than selected.
The camshaft position sensor (for intake camshaft) (VV1 signal) consists of a magnet and MRE (Magneto Resistance Element).
The intake camshaft has a timing rotor for the camshaft position sensor. When the intake camshaft rotates, changes occur in the air gaps between the timing rotor and MRE, which affects the magnetic field. As a result, the resistance of the MRE material fluctuates. The camshaft position sensor converts the camshaft rotation data to pulse signals, uses the pulse signals. The ECM uses the pulse signals to determine the camshaft angle. Then the ECM uses this data to control fuel injection duration and injection timing.
| DTC No. | Detection Item | DTC Detection Condition | Trouble Area | MIL | Memory | Note |
|---|---|---|---|---|---|---|
| P0340-11 | Camshaft Position Sensor "A" Bank 1 or Single Sensor Circuit Short to Ground | The camshaft position sensor (for intake camshaft) output voltage is less than 0.3 V for 4 seconds or more (1 trip detection logic). |
|
Comes on | DTC stored | SAE Code: P0342 |
| P0340-15 | Camshaft Position Sensor "A" Bank 1 or Single Sensor Circuit Short to Battery or Open | The camshaft position sensor (for intake camshaft) output voltage is higher than 4.7 V for 4 seconds or more (1 trip detection logic). |
|
Comes on | DTC stored | SAE Code: P0343 |
- Reference: Inspection using an oscilloscope.
HINT:
- The correct waveform is as shown.
- VV1 stands for the camshaft position sensor signal (for intake camshaft), and EV1 stands for the camshaft position sensor signal (for exhaust camshaft).
ECM Terminal Name CH1: Between VV1+ and VV1-
CH2: Between EV1+ and EV1-Tester Range 5 V/DIV., 20 ms./DIV. Condition Idling with warm engine
