Subaru Legacy BN/BS (2015-2019) Service Manual: Inspection

Subaru Legacy BN/BS (2015-2019) Service Manual / Continuously variable transmission(tr690) / Front wheel speed sensor / Inspection

1. Remove the bulkhead harness connector from TCM. Transmission Control Module (TCM) > REMOVAL

2. Set the ST between the TCM and bulkhead harness.

ST 18460AA040

CHECK BOARD

3. Set the probe of oscilloscope to the check board connector.

Terminals:

No. 12 (+) — No. 26 (−)

(A)	+ probe
(B)	− probe

4. Lift up the vehicle and raise the vehicle speed up to 20 km/h (12 MPH).

5. Check the waveform of front wheel speed sensor when vehicle speed is at 20 km/h (12 MPH).

NOTE:

The waveform cycle changes as the speed changes.

Removal

CAUTION:• Be sure to prevent water or oil from contacting the connector terminal of front wheel speed sensor. If adhesion occurs, replace with a new part.• When removing front wheel speed ...

Installation

CAUTION:• Be sure to prevent water or oil from contacting the connector terminal of front wheel speed sensor. If adhesion occurs, replace with a new part.• After installing the front wheel ...

Other materials:

Electrical component location location
(1)Data link connector(3)Telematics sub antenna(5)Audio or navigation(2)GPS antenna(4)Data communication module (DCM)(6)Instrument panel speaker (standard and H/K specifications)(1)Telematics antenna(2)Door speaker (standard specification)(3)Airbag CM(1)SOS button(3)GREEN LED(5)Microphone(2)RED LED( ...