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.

RemovalKey lock-in prevention function
The Subaru Ascent is equipped with a key lock-in prevention system designed to
prevent accidental locking of the keys inside the vehicle.
Under the following conditions, the Subaru Ascent doors will not lock when the
door lock switch is pressed while a front door remains open:
The key is st ...
Inspection
COOLING(H4DO) > Engine CoolantINSPECTIONNOTE:When adding the engine coolant, always use SUBARU Super Coolant.1. Park the vehicle on a level surface.2. Turn the ignition switch to OFF.3. Check the engine coolant amount, and if the coolant level is low, check for the coolant leakage, and then add t ...
Installation
VEHICLE DYNAMICS CONTROL (VDC) > Rear ABS Wheel Speed SensorINSTALLATIONCAUTION:Be careful not to damage the sensor.1. Install each part in the reverse order of removal.2. Route the rear ABS wheel speed sensor cable to the upper arm assembly.NOTE:Check the identification (mark) on the harness to ...