FUEL INJECTION (FUEL SYSTEMS)(H4DO) > Camshaft Position Sensor
INSPECTION
1. CAMSHAFT POSITION SENSOR (METHOD WITH OSCILLOSCOPE)
1. Prepare an oscilloscope.
2. Remove the glove box. Glove Box > REMOVAL">
3. Connect the probe to ECM connector.

• Intake camshaft position sensor

• Exhaust camshaft position sensor

Camshaft position sensor | Terminal No. | Probe | |
Intake | RH | 26 | + |
LH | 15 | + | |
Exhaust | RH | 14 | + |
LH | 25 | + | |
RH and LH | 3 | − | |
4. Start the engine and let it idle.
5. Check the waveforms and voltage.
NOTE:
For waveform and voltage, refer to “Engine Control Module (ECM) I/O Signal”. Engine Control Module (ECM) I/O Signal > ELECTRICAL SPECIFICATION">
6. After inspection, install the related parts in the reverse order of removal.
2. OTHER INSPECTIONS
Check that the camshaft position sensor has no deformation, cracks or other damages.
RemovalInstallation
GLASS/WINDOWS/MIRRORS > Windshield GlassINSTALLATIONCAUTION:• For model with EyeSight, always use Subaru genuine windshield glass specially designed for EyeSight. (If the windshield glass other than the glass specially designed for EyeSight is used, the visibility of the camera is blocked o ...
Auto Vehicle Hold indicator light
CAUTION
If the Auto Vehicle Hold indicator light in your Subaru Ascent does not activate
after selecting "Auto Vehicle Hold (AVH)", this may indicate a potential issue with
the electronic parking brake system. In such cases, the system may not function
as intended, and it is recomme ...
Inspection
GLASS/WINDOWS/MIRRORS > Outer Mirror AssemblyINSPECTION1. CHECK OPERATION1. Disconnect the outer mirror connector.2. Apply battery voltage between the outer mirror connector terminals and check the mirror operation.Terminal No.Inspection conditionsSwitch position — — OFF3 (+) — 8 (−) ...