Brake Warning Light Does Not Go Off: Wiring Diagram
Parking brake/brake fluid level warning light system < Refer to appropriate SYSTEM WIRING DIAGRAM. >
| Step | Check | Yes | No |
|---|---|---|---|
| 1 READ DTC. Read the DTC. < Refer to READ DIAGNOSTIC TROUBLE CODE (DTC) . > |
Is DTC displayed? | Perform the diagnosis according to DTC. < Refer to LIST OF DIAGNOSTIC TROUBLE CODE (DTC) . > | Go to step 2 . |
| 2 CHECK BRAKE FLUID AMOUNT. Check the amount of brake fluid in the reservoir tank of master cylinder. |
Does the level of the brake fluid amount fall between the lines of "MAX" and "MIN"? | Go to step 3 . | Replenish brake fluid to the specified value. |
3 CHECK BRAKE FLUID LEVEL SWITCH.
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Is the resistance 1 MΩ or more? | Go to step 4 . | Replace the master cylinder. < Refer to MASTER CYLINDER . > |
4 CHECK GROUND SHORT OF HARNESS.
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Is the resistance 1 MΩ or more? | Go to step 5 . | Repair the harness connector between combination meter and brake fluid level switch. |
| 5 CHECK LAN SYSTEM. Check the DTC in LAN system. < Refer to READ DIAGNOSTIC TROUBLE CODE (DTC) . > |
Is DTC of LAN system displayed? | Perform the diagnosis according to DTC. < Refer to LIST OF DIAGNOSTIC TROUBLE CODE (DTC) . > | Go to step 6 . |
| 6 CHECK COMBINATION METER. Check the combination meter. < Refer to SELF-DIAGNOSIS DISPLAY MODE , OPERATION, Combination Meter System. > |
Is combination meter OK? | Go to step 7 . | Replace the combination meter. < Refer to COMBINATION METER . > |
| 7 CHECK VDC SYSTEM. Check the DTC in VDC system. < Refer to READ DIAGNOSTIC TROUBLE CODE (DTC) . > |
Is DTC of VDC system displayed? | Perform the diagnosis according to DTC. < Refer to LIST OF DIAGNOSTIC TROUBLE CODE (DTC) . > | Go to step 8 . |
| 8 CHECK ELECTRONIC PARKING BRAKE CM. With the parking brake released, display the current data of the electronic parking brake CM using Subaru Select Monitor. |
Is the «Brake Warning Light» ON? | Replace the electronic parking brake CM. < Refer to PARKING BRAKE ACTUATOR . > | Go to step 9 . |
| 9 CHECK OTHER DTC DETECTION. | Is any other DTC displayed? | Perform the diagnosis according to DTC. | It results from a temporary poor contact interference. |