Subaru Crosstrek Service Manual: Diagnostic procedure with phenomenon

1

Temporary stop occurs frequently.

EyeSight temporary stop indicator illuminates frequently.

(1) Check EyeSight temporary stop code.

EyeSight Temporary Code(s) Display">

For details on temporary stop codes, refer to CHECK LIST (CAMERA TEMPORARY STOP).

Check list (camera temporary stop) EyeSight Temporary Code(s) Display > LIST">

When there is a relevant item in the check list, it can be the cause of malfunction. Eliminate the cause, and check that the malfunction has been improved. If not solved, the stereo camera may be malfunctioning.

1

Cruise control switch is not turned to ON. (CRUISE indicator light does not illuminate)

Or cruise control was cancelled without operating the cruise switch.

(1) Check the ECM cruise control cancel code.

Perform the diagnosis according to displayed cancel code. ECM Cancel Code(s) Display">

If not displayed, go to (2).

(2) Perform the real-time diagnosis.

Check the input signal of cruise control system.

Real-time Diagnosis Real-time Diagnosis">

When normal, go to (4).

When abnormal, go to (3).

(3) Check the EyeSight steering switch.

Check EyeSight steering switch Diagnostics with Phenomenon > CHECK EyeSight STEERING SWITCH">

(4) Check the CRUISE indicator.

Inspection of cruise indicator Diagnostics with Phenomenon > CHECK ADAPTIVE CRUISE CONTROL INDICATOR LIGHT/CONSTANT SPEED CRUISE CONTROL INDICATOR LIGHT AND CRUISE SET INDICATOR LIGHT">

2

Cruise control cannot be set.

Or cruise control is cancelled without releasing operation.

NOTE:

1

Pre-collision brake does not operate.

Or the pre-collision brake operates, but the vehicle cannot stop safely before collision.

Or the pre-collision brake is released automatically.

Or the pre-collision brake assist does not operate.

(1) Check that the pre-collision brake OFF indicator light goes off.

If this indicator light illuminates, the operation is not performed.

(2) Using CHECK LIST (PRE-COLLISION BRAKE), check the following and respond to it.

1) Does it apply to the condition that the pre-collision brake does not operate, or there is a high possibility that the vehicle cannot stop safely before collision with the pre-collision brake?

2) Does it apply to the condition that there is a high possibility that the pre-collision brake does not operate due to the recognition status of the stereo camera?

3) Does it apply to the condition that the system does not operate correctly and the turning OFF of the pre-collision brake is desired?

4) Does it apply to the condition that the pre-collision brake OFF indicator light illuminates?

Check list (pre-collision brake) Diagnostics with Phenomenon > DIAGNOSTIC PROCEDURE WITH PHENOMENON">

When there is a relevant item in the check list, it can be the cause of malfunction. Eliminate the cause, and check that the malfunction has been improved. If not solved, the stereo camera may be malfunctioning.

2

Pre-collision brake operates improperly.

Or the pre-collision brake is not released.

Or the pre-collision brake assist operates improperly.

(1) Using CHECK LIST (PRE-COLLISION BRAKE), check the following and respond to it.

1) Does it apply to the condition that turning OFF of the pre-collision brake is desired?

2) Does it apply to the condition that the pre-collision brake may operate?

Check list (pre-collision brake) Diagnostics with Phenomenon > DIAGNOSTIC PROCEDURE WITH PHENOMENON">

When there is a relevant item in the check list, it can be the cause of malfunction. Eliminate the cause, and check that the malfunction has been improved. If not solved, the stereo camera may be malfunctioning.

3

Pre-collision brake OFF indicator light does not go off.

Or the pre-collision brake OFF indicator light illuminates automatically.

(1) Check that this failure occurs during engine start.

Light illumination for a while after the engine start is a normal.

(2) Check EyeSight temporary stop code to see if temporary stop has occurred.

If the EyeSight temporary stop code is displayed, check the diagnosis from the List of EyeSight temporary stop code, and perform the corresponding operations. EyeSight Temporary Code(s) Display">

If the cancel code is not displayed, go to (3).

(3) Check the pre-collision brake OFF switch.

Inspection of pre-collision brake OFF switch Diagnostic Procedure with Diagnostic Trouble Code (DTC) > DTC B28B6 PRE-COLLISION OFF SWITCH">

4

Pre-collision brake OFF indicator light does not illuminate.

Or the pre-collision brake OFF indicator light goes off automatically.

(1) Check that this failure occurs during engine start.

Even if the pre-collision brake is turned off, it is turned on again when the engine switch is turned off and the engine has restarted.

(2) Check the pre-collision brake OFF switch.

Inspection of pre-collision brake OFF switch Diagnostic Procedure with Diagnostic Trouble Code (DTC) > DTC B28B6 PRE-COLLISION OFF SWITCH">

5

AT rapid start prevention control does not operate.

Or the AT rapid start prevention control is released automatically.

(1) Check that the pre-collision brake OFF indicator light goes off.

If this indicator light illuminates, the operation is not performed.

(2) Using CHECK LIST (AT RAPID START PREVENTION CONTROL), check the following and respond to it.

1) Does it apply to the condition that the AT rapid start prevention control may not operate?

2) Does it apply to the condition that the pre-collision brake OFF indicator light illuminates?

Check list (AT rapid start prevention control) Diagnostics with Phenomenon > DIAGNOSTIC PROCEDURE WITH PHENOMENON">

When there is a relevant item in the check list, it can be the cause of malfunction. Eliminate the cause, and check that the malfunction has been improved. If not solved, the stereo camera may be malfunctioning.

6

AT rapid start prevention control operates improperly.

Or the AT rapid start prevention control is not released.

(1) Using CHECK LIST (AT RAPID START PREVENTION CONTROL), check the following and respond to it.

1) Does it apply to the condition that turning OFF of the AT rapid start prevention control is desired?

2) Does it apply to the condition that the AT rapid start prevention control may operate?

Check list (AT rapid start prevention control) Diagnostics with Phenomenon > DIAGNOSTIC PROCEDURE WITH PHENOMENON">

When there is a relevant item in the check list, it can be the cause of malfunction. Eliminate the cause, and check that the malfunction has been improved. If not solved, the stereo camera may be malfunctioning.

1

Lane departure warning does not operate.

Or the lane departure warning is released automatically.

(1) Check that the lane departure warning OFF indicator light goes off.

If this indicator light illuminates, the operation is not performed.

(2) Using CHECK LIST (LANE DEPARTURE WARNING, SWAY WARNING, FORWARD VEHICLE'S START MONITORING FUNCTION), check the following and respond to it.

1) Does it apply to the condition that the lane departure warning does not operate or is difficult to operate?

2) Does it apply to the condition that the lane departure warning OFF indicator light illuminates?

Check list (lane departure warning, sway warning, forward vehicle's start monitoring function) Diagnostics with Phenomenon > DIAGNOSTIC PROCEDURE WITH PHENOMENON">

When there is a relevant item in the check list, it can be the cause of malfunction. Eliminate the cause, and check that the malfunction has been improved. If not solved, the stereo camera may be malfunctioning.

2

Lane departure warning operates improperly.

Or the lane departure warning is not released.

(1) Using CHECK LIST (LANE DEPARTURE WARNING, SWAY WARNING, FORWARD VEHICLE'S START MONITORING FUNCTION), check the following and respond to it.

1) Does it apply to the condition that the vehicle lane is recognized erroneously and the lane departure warning may operate?

Check list (lane departure warning, sway warning, forward vehicle's start monitoring function) Diagnostics with Phenomenon > DIAGNOSTIC PROCEDURE WITH PHENOMENON">

When there is a relevant item in the check list, it can be the cause of malfunction. Eliminate the cause, and check that the malfunction has been improved. If not solved, the stereo camera may be malfunctioning.

3

Lane departure warning OFF indicator light does not go off.

Or the lane departure warning OFF indicator light illuminates automatically.

(1) Check that this failure occurs during engine start.

Light illumination for a while after the engine start is a normal. Even if the engine switch is turned off and the engine is restarted, the status before the engine switch off is maintained.

(2) Check EyeSight temporary stop code to see if temporary stop has occurred.

If the EyeSight temporary stop code is displayed, check the diagnosis from the List of EyeSight temporary stop code, and perform the corresponding operations. EyeSight Temporary Code(s) Display">

If the cancel code is not displayed, go to (3).

(3) Check the lane departure warning OFF indicator light.

Inspection of lane departure warning OFF indicator light Diagnostic Procedure with Diagnostic Trouble Code (DTC) > DTC B28B7 LDP OFF SWITCH">

4

Lane departure warning OFF indicator light does not illuminate.

Or the lane departure warning OFF indicator light goes off automatically.

(1) Check the lane departure warning OFF indicator light.

Inspection of lane departure warning OFF indicator light Diagnostic Procedure with Diagnostic Trouble Code (DTC) > DTC B28B7 LDP OFF SWITCH">

5

Sway warning does not operate.

Or the sway warning is released automatically.

(1) Check that the lane departure warning OFF indicator light goes off.

If this indicator light illuminates, the operation is not performed.

(2) Using CHECK LIST (LANE DEPARTURE WARNING, SWAY WARNING, FORWARD VEHICLE'S START MONITORING FUNCTION), check the following and respond to it.

1) Does it apply to the condition that the sway warning may not operate?

2) Does it apply to the condition that the lane departure warning OFF indicator light illuminates?

Check list (lane departure warning, sway warning, forward vehicle's start monitoring function) Diagnostics with Phenomenon > DIAGNOSTIC PROCEDURE WITH PHENOMENON">

When there is a relevant item in the check list, it can be the cause of malfunction. Eliminate the cause, and check that the malfunction has been improved. If not solved, the stereo camera may be malfunctioning.

6

Sway warning operates improperly.

Or the sway warning is not released.

(1) Using CHECK LIST (LANE DEPARTURE WARNING, SWAY WARNING, FORWARD VEHICLE'S START MONITORING FUNCTION), check the following and respond to it.

1) Does it apply to the condition that the sway warning may operate improperly?

Check list (lane departure warning, sway warning, forward vehicle's start monitoring function) Diagnostics with Phenomenon > DIAGNOSTIC PROC