FUEL INJECTION (FUEL SYSTEMS)(H4DOTC) > Camshaft Position Sensor
1. CAMSHAFT POSITION SENSOR (METHOD WITH OSCILLOSCOPE)
1. Prepare an oscilloscope.
3. Turn over the floor mat of passenger’s seat.
4. Remove the protect cover.
• LHD model
• RHD model
5. Remove the nuts and bolts which hold the ECM to the bracket.
• LHD model
• RHD model
6. Connect the probe to ECM connector.
|
(A) |
To ECM connector |
|
Camshaft position sensor |
Terminal No. |
Probe |
|
RH |
11 |
+ |
|
LH |
21 |
+ |
|
RH and LH |
22 |
− |
7. Start the engine and let it idle.
8. Check that the pattern is as same as the waveform and voltage shown below.
|
(A) |
One camshaft rotation |
9. After inspection, install the related parts in the reverse order of removal.
Check that the camshaft position sensor has no deformation, cracks or other damages.