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:

Using a flat-bed truck
This is the best way to transport your vehicle. Use the following procedures to ensure safe transportation. 1. Shift the select lever into the "P" position for CVT models. Shift the shift lever into the "1st" position for MT models. 2. Pull up the parking brake lever firmly. 3. Secur ...

Assembly
REAR SUSPENSION > Rear Lateral LinkASSEMBLY1. Before assembly, inspect the following items and replace any faulty part with a new one.• Visually check the lateral link assembly - rear for damage and deformation.• Visually check the bushing for abnormal cracks, fatigue or damage.2. Usi ...

Dtc p0071 ambient air temperature sensor circuit "a" range/performance
ENGINE (DIAGNOSTICS)(H4DO) > Diagnostic Procedure with Diagnostic Trouble Code (DTC)DTC P0071 AMBIENT AIR TEMPERATURE SENSOR CIRCUIT "A" RANGE/PERFORMANCEDTC detecting condition:Detected when two consecutive driving cycles with fault occur.CAUTION:After servicing or replacing faulty par ...