Diagnostic Procedure
DIAGNOSTIC PROCEDURE
| Step | Check | Yes | No |
|---|---|---|---|
| 1 CHECK STOP LIGHT SWITCH CIRCUIT. Check stop light switch open circuit. |
Is the stop light switch circuit OK? | Go to step 2 . | Repair the stop light switch circuit.
NOTE:
If there is malfunction in the stop light circuit, DTC may be recorded in the memory.
|
2 CHECK OUTPUT OF PRESSURE SENSOR WITH SUBARU SELECT MONITOR.
|
With the brake pedal released, is the displayed value 0 - 11 bar? | Go to step 3 . | Replace the VDCCM&H/U. < Refer to VDC CONTROL MODULE AND HYDRAULIC CONTROL UNIT (VDCCM&H/U) . > |
3 CHECK OUTPUT OF PRESSURE SENSOR WITH SUBARU SELECT MONITOR.
|
When the brake pedal is operated, does the master cylinder output value displayed on the display change in accordance with the brake pedal? | Go to step 4 . | Replace the VDCCM&H/U. < Refer to VDC CONTROL MODULE AND HYDRAULIC CONTROL UNIT (VDCCM&H/U) . > |
4 CHECK PRESSURE SENSOR.
|
Is the same DTC displayed? | Replace the VDCCM&H/U. < Refer to VDC CONTROL MODULE AND HYDRAULIC CONTROL UNIT (VDCCM&H/U) . > | Go to step 5 . |
| 5 CHECK OTHER DTC DETECTION. | Is any other DTC displayed? | Perform the diagnosis according to DTC. < Refer to LIST OF DIAGNOSTIC TROUBLE CODE (DTC) . > | It results from a temporary noise interference. |