CONTINUOUSLY VARIABLE TRANSMISSION(TR580) > Secondary Speed Sensor
INSPECTION
1. Set the ST between the TCM and bulkhead harness.
| ST 18460AA040 | CHECK BOARD |
2. Set the probe of oscilloscope to the check board connector.
Connector & terminal
No. 13 (+) — No. 42 (−):

(A) | + probe |
(B) | − probe |
3. Start and warm up the engine.
4. Lift up the vehicle.
CAUTION:
Lift up the vehicle until the tire bottom is 0.3 m (0.98 ft) or more above the ground.
5. Shift the select lever to “D” range.
6. Check the waveform and output voltage of the secondary speed sensor with engine idling.
NOTE:
The waveform cycle changes as the speed changes.

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General precautions regarding SRS airbag system for accessories and any objects
WARNING
Never place any objects (including straps, cords, decorative items, or
electronic accessories) on or around the steering wheel pad, steering column
cover, or dashboard area of your Subaru Ascent.
Such items can become entangled with steering components, potentially
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Malfunctions of the center information display
If your Subaru Ascent displays any of the following abnormal screen behaviors,
it may indicate a temporary glitch or malfunction within the center information
display system.
In many cases, such issues are minor and can be resolved by performing a simple
reset procedure. Follow the steps belo ...