DTC B2283: Vehicle Speed Sensor

WARNING: This page is about a different car, the 2022 Subaru WRX. However, it is still accessible from the selected car via links, so may be relevant.

DTC detecting condition:

When any of the following conditions is established with ignition switch ON.

The status continues for 10 seconds where a vehicle speed signal on CAN or direct line is 50 km/h (31 MPH) or more, and then the vehicle speed signal on CAN and direct line becomes 0 km/h within one second.
The following status continues for 300 seconds: Vehicle speed signal on CAN and direct line is 0 km/h (0 MPH), and an engine speed signal on CAN or direct line is 2000 rpm or more, and the shift position is in other than P (P-SW or CAN) or N (CAN) range, and accessory cut relay signal input information level is ≈ "L".

Trouble symptom:

The steering lock cannot be released.

Wiring diagram:

Keyless access with push button start system Ref. to WIRING SYSTEM>KEYLESS ACCESS WITH PUSH BUTTON START SYSTEM>WIRING DIAGRAM
CAN communication system Ref. to WIRING SYSTEM>CAN COMMUNICATION SYSTEM>WIRING DIAGRAM

Courtesy of SUBARU OF AMERICA, INC.

CAUTION:

For replacement procedure of keyless access control module, refer to the "REGISTRATION MANUAL FOR IMMOBILIZER" provided as a separate volume.
Before performing diagnosis, refer to "CAUTION" in "General Description". Ref. to KEYLESS ACCESS WITH PUSH BUTTON START (DIAGNOSTICS)>GENERAL DESCRIPTION>CAUTION

CHECK LAN SYSTEM .
Perform the diagnosis for LAN system. Ref. to LAN SYSTEM (DIAGNOSTICS)>BASIC DIAGNOSTIC PROCEDURE>PROCEDURE

Is the check result OK?

Yes : Go to 2.

No : Perform the inspection according to the diagnosis for LAN system.
CHECK COMBINATION METER .
Check that the speedometer is displayed normally.

Is the check result OK?

Yes : Go to 3.

No : Check the VDC. Ref. to BRAKE CONTROL (DIAGNOSTICS)>BASIC DIAGNOSTIC PROCEDURE>PROCEDURE
CHECK DATA MONITOR .
1. Turn the ignition switch to ON.
2. Using the Subaru Select Monitor, check the following items in the [Data Monitor] of [Keyless Access with Push Button Start (Power Supply)]. Ref. to KEYLESS ACCESS WITH PUSH BUTTON START (DIAGNOSTICS)>DATA MONITOR
  - Vehicle speed signal
Is the display normal according to [Stopped status] or [Drive status]?

Yes : 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.

No : Go to 4.
CHECK HARNESS (OPEN CIRCUIT) .
1. Turn the ignition switch to OFF.
2. Disconnect the connector from the keyless access control module.
3. Disconnect the connector from VDC Control Module.
4. Using a tester, measure the resistance between the keyless access control module connector and VDC Control Module connector.
  Connector & terminal
  
  (i91) No. 7 - (B66) No. 34:
Is the resistance less than 1 Ω?

Yes : Go to 5.

No : Repair or replace the open circuit of harness.
CHECK HARNESS (GROUND SHORT CIRCUIT) .
Using a tester, measure the resistance between the keyless access control module connector and chassis ground.

Connector & terminal

(i91) No. 7 - Chassis ground:

Is the resistance 30 kΩ or more?

Yes : Go to 6.

No : Repair or replace the short circuit of the harness.
CHECK KEYLESS ACCESS CONTROL MODULE .
1. Connect the disconnected connectors.
2. Using an oscilloscope, measure the waveform between the keyless access control module connector and chassis ground.
  Connector & terminal
  
  (i91) No. 7 - Chassis ground:
Is 3.54 Hz displayed when the vehicle is driven approx. at 5 km/h (3 MPH)? Or does the value change from 3.54 Hz when the vehicle stops?

Yes : Replace the keyless access control module. Ref. to SECURITY AND LOCKS>KEYLESS ACCESS CONTROL MODULE>REMOVAL

No : Check the VDC. Ref. to BRAKE CONTROL (DIAGNOSTICS)>BASIC DIAGNOSTIC PROCEDURE>PROCEDURE