DTC B2282: Vehicle Speed Signal Correlation

DTC detecting condition:

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

The status continues for 20 seconds where a vehicle speed signal on direct line is less than 5 km/h (3 MPH) and a vehicle speed signal on CAN is 15 km/h (9 MPH) or more.
The status continues for 20 seconds where a vehicle speed signal on direct line is 15 km/h (9 MPH) or more and a vehicle speed signal on CAN is less than 5 km/h (3 MPH).

Wiring diagram:

Keyless access with push button start system Ref. to WIRING SYSTEM>KEYLESS ACCESS WITH PUSH BUTTON START 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 SYSTEM (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 meter display normal?

Yes : Go to 3 .

No : Check the VDC. Ref. to BRAKE CONTROL (DIAGNOSTICS)>BASIC DIAGNOSTIC 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 System (Diagnostics)>Data Monitor .
- Vehicle speed signal
Is the display normal according to the parked state or driving state?

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 keyless access control module connector.
3. Disconnect the VDC control module connector.
4. Using a tester, measure the resistance between the keyless access control module connector and VDC control module connector.
  Connector and 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 and 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 each connector.
2. Using an oscilloscope, measure the waveform between the keyless access control module connector and chassis ground.
  Connector and 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 .

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