Subaru Crosstrek Service Manual: Inspection

1. 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

1.CHECK FUSE.

1) Turn the ignition switch to OFF.

2) Check the fuse for radar sensor LH. Relay and Fuse">

Is it normal?

Subaru Select Monitor > INSPECTION">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).

1) Disconnect the radar sensor LH connector.

2) Turn the ignition switch to ON.

3) Using a tester, measure the voltage between radar sensor LH connector (harness side) and chassis ground.

Connector & terminal

(R25) No. 5 (+) — Chassis ground (−):

Is the voltage 10 V or more?

Subaru Select Monitor > INSPECTION">Go to Step 3.

Repair the open circuit of harness between fuse and radar sensor LH connector.

3.CHECK HARNESS (OPEN CIRCUIT).

1) Turn the ignition switch to OFF.

2) Using a tester, measure the resistance between radar sensor LH connector (harness side) and chassis ground.

Connector & terminal

(R25) No. 10 — Chassis ground:

Is the resistance less than 1 ??

Subaru Select Monitor > INSPECTION">Go to Step 4.

Repair the open circuit in harness between radar sensor and chassis ground.

4.CHECK LAN SYSTEM.

1) Connect the radar sensor LH connector.

2) Inspect LAN system. Basic Diagnostic Procedure">

Is it normal?

Subaru Select Monitor > INSPECTION">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. Radar Sensor">

Subaru select monitor

Operation

Other materials:

Adjustment
SECURITY AND LOCKS > Front Hood Lock AssemblyADJUSTMENT1. Loosen the bolt, and adjust the lock assembly - front hood while moving it up and down.2. After adjustment, tighten the bolts securely.Tightening torque:Refer to “COMPONENT” of “General Description”. General Descri ...

Inspection
MECHANICAL(H4DO) > Cam ClearanceINSPECTION1. WHEN TIMING CHAIN ASSEMBLY IS NOT REMOVEDCAUTION:When working on the vehicle, if engine oil is spilt onto the exhaust pipe, wipe it off with cloth to avoid emission of smoke or causing a fire.NOTE:• Inspection of cam clearance should be performed ...

Dtc b1501 power supply system error detection
INSTRUMENTATION/DRIVER INFO (DIAGNOSTICS) > Diagnostic Procedure with Diagnostic Trouble Code (DTC)DTC B1501 POWER SUPPLY SYSTEM ERROR DETECTIONDTC detecting condition:Open or short in combination meter power supply circuitTrouble symptom:Defective operation of combination meterWiring diagram:Com ...