Subaru Legacy BN/BS (2015-2019) Service Manual: Dtc b2282 vehicle speed signal correlation

Subaru Legacy BN/BS (2015-2019) Service Manual / Keyless access with push button start system (diagnostics) / Diagnostic procedure with diagnostic trouble code (dtc) / Dtc b2282 vehicle speed signal correlation

DTC DETECTING CONDITION:

When the vehicle speed signal transmitted from VDC via solid line and the vehicle speed signal transmitted from VDC via CAN communication line do not match.

CAUTION:

For replacement procedure of keyless access CM, refer to the “REGISTRATION MANUAL FOR IMMOBILIZER” provided as a separate volume.

WIRING DIAGRAM:

NOTE:

For the coupling connector, refer to “WIRING SYSTEM”.

Keyless access with push button start system Keyless Access With Push Button Start System > WIRING DIAGRAM

STEP	CHECK	YES	NO
1.CHECK LAN SYSTEM. Inspect LAN system. Basic Diagnostic Procedure > PROCEDURE	Is LAN system normal-	Diagnostic Procedure with Diagnostic Trouble Code (DTC) > DTC B2282 VEHICLE SPEED SIGNAL CORRELATION	Perform the inspection according to the diagnosis for LAN system.
2.CHECK COMBINATION METER. Check that the speedometer is displayed normally.	Is the meter display normal-	Diagnostic Procedure with Diagnostic Trouble Code (DTC) > DTC B2282 VEHICLE SPEED SIGNAL CORRELATION	Check the VDC. Basic Diagnostic Procedure > PROCEDURE
3.CHECK CURRENT DATA. Check the current data display of «Keyless access with push button start» using Subaru Select Monitor. Read Current Data «Vehicle speed signal»	Is the display normal according to the parked state or driving state-	Even if DTC is displayed, the circuit has returned to a normal condition at this time. Reproduce the failure, and then perform the diagnosis again. NOTE: In this case, temporary poor contact of connector, temporary open or short circuit of harness may be the cause.	Diagnostic Procedure with Diagnostic Trouble Code (DTC) > DTC B2282 VEHICLE SPEED SIGNAL CORRELATION
4.CHECK HARNESS (OPEN CIRCUIT). 1) Disconnect the keyless access CM connector. 2) Disconnect the VDC CM connector. 3) Using a tester, measure the resistance between the keyless access CM connector and VDC CM connector. Connector & terminal (i241) No. 32 — (B310) No. 24:	Is the resistance less than 1 --	Diagnostic Procedure with Diagnostic Trouble Code (DTC) > DTC B2282 VEHICLE SPEED SIGNAL CORRELATION	Repair or replace the open circuit of harness.
5.CHECK HARNESS (OPEN CIRCUIT). Using a tester, measure the resistance between the keyless access CM connector and chassis ground. Connector & terminal (i241) No. 32 — Chassis ground:	Is the resistance 30 k- or more-	Diagnostic Procedure with Diagnostic Trouble Code (DTC) > DTC B2282 VEHICLE SPEED SIGNAL CORRELATION	Repair or replace the short circuit of the harness.
6.CHECK KEYLESS ACCESS CM. 1) Connect each connector. 2) Using the Subaru Select Monitor, measure the waveform between the terminals of keyless access CM. Connector & terminal (i241) No. 32 — Chassis ground:	Is 3.54 Hz displayed when the vehicle is driven at approx. 5 km/h- Or does the value change from 3.54 Hz when the vehicle stops-	Replace the keyless access CM. Keyless Access CM	Check the VDC. Basic Diagnostic Procedure > PROCEDURE

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