Communication For Initializing Impossible
When communication with the radar sensor is impossible
DETECTING CONDITION:
- Defective harness connector
- Power supply circuit malfunction
- Defective radar sensor
- Defective CAN communication circuit
- Defective Subaru Select Monitor
TROUBLE SYMPTOM:
Communication is impossible between radar sensor and Subaru Select Monitor.
WIRING DIAGRAM:
SRVD system <Ref. to WIRING DIAGRAM , Blind Spot Detection/Rear Cross Traffic Alert.>
| Step | Check | Yes | No |
|---|---|---|---|
1 CHECK FUSE.
|
Is the check result OK? | Go to step 2 . | Replace the fuse. If the replaced fuse has blown out immediately, repair the short circuit to ground in harness between fuse and radar sensor LH. |
2 CHECK HARNESS (OPEN CIRCUIT).
Connector & terminal (R25) No. 5 (+) - Chassis ground (-): |
Is the voltage 10 V or more? | Go to step 3 . | Repair the open circuit of harness between fuse and radar sensor LH connector. |
3 CHECK HARNESS (OPEN CIRCUIT).
Connector & terminal (R25) No. 10 - Chassis ground: |
Is the resistance less than 1 Ω? | Go to step 4 . | Repair the open circuit in harness between radar sensor and chassis ground. |
4 CHECK LAN SYSTEM.
|
Is the check result OK? | Go to step 5 . | Perform the inspection according to the diagnosis for LAN system. |
| 5 CHECK RADAR SENSOR. Communicate with the radar sensor. |
Is communication possible? | 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.
|
Replace the radar sensor LH. <Ref. to Radar Sensor .> |