DTC B2286 ENGINE SPEED SIGNAL(WITHOUT Auto Start Stop)
DTC DETECTING CONDITION:
When the engine speed signal transmitted from the ECM via solid line and the engine speed signal transmitted from the ECM via CAN communication line do not match.
TROUBLE SYMPTOM:
Cannot start the engine, or the engine stops after starting.
CAUTION:
For replacement procedure of Keyless Access Control Module, refer to the "REGISTRATION MANUAL FOR IMMOBILIZER" provided as a separate volume.
WIRING DIAGRAM:
Push button start system <Ref. to WIRING DIAGRAM , Push Button Start System.>
- Engine type: FA
- Engine type: EJ
| Step | Check | Yes | No |
|---|---|---|---|
| 1 CHECK LAN SYSTEM. Inspect LAN system. <Ref. to PROCEDURE , Basic Diagnostic Procedure.> |
Is the check result OK? | Go to step 2 . | Perform the inspection according to the diagnosis for LAN system. |
| 2 CHECK COMBINATION METER. Confirm that the speedometer is displayed normally. |
Is the check result OK? | Go to step 3 . | Perform the diagnosis for the engine. <Ref. to PROCEDURE , Basic Diagnostic Procedure.> <Ref. to BASIC DIAGNOSTIC PROCEDURE , Basic Diagnostic Procedure.> |
| 3 CHECK CURRENT DATA. Check the current data display of «Keyless Access with Push Button Start» using Subaru Select Monitor. <Ref. to READ CURRENT DATA .>
|
Can the data be read normally? | 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.
|
Go to step 4 . |
4 CHECK HARNESS (OPEN CIRCUIT).
Connector & terminal Engine type: FA (B572) No. 17 - (B134) No. 4: Engine type: EJ (B572) No. 17 - (B135) No. 15: |
Is the resistance less than 1 Ω? | Go to step 5 . | Repair or replace the open circuit of harness. |
| 5 CHECK HARNESS (GROUND SHORT CIRCUIT). Using a tester, measure the resistance between the Keyless Access Control Module connector and chassis ground. Connector & terminal (B572) No. 17 - Chassis ground: |
Is the resistance 10 kΩ or more? | Go to step 6 . | Repair or replace the short circuit of the harness. |
6 CHECK HARNESS.
Connector & terminal (B572) No. 17 - Chassis ground: |
Does the pulse stop when the engine is stopped, and does the pulse generate when the engine is started? | Replace the Keyless Access Control Module. <Ref. to Keyless Access Control Module .> | Perform the diagnosis for the engine. <Ref. to PROCEDURE , Diagnostics for Engine Starting Failure.> <Ref. to PROCEDURE , Diagnostics for Engine Starting Failure.> |