FixVault

Brake Warning Light Does Not Go Off: Wiring Diagram

Fig 1: Brake Warning Light Wiring Diagram
G00525738Courtesy of SUBARU OF AMERICA, INC.
Step Check Yes No
1 CHECK INSTALLATION OF VDCCM & H/U CONNECTOR. 
  1. Turn the ignition switch to OFF.
  2. Check that the VDCCM & H/U connector is inserted until it is locked by clamp.
Is the connector firmly inserted? Go to step . Insert the VDCCM & H/U connector until it is locked by clamp.
2 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 .
3 CHECK BRAKE FLUID AMOUNT. 
Check the amount of brake fluid in the reservoir tank of master cylinder.
Is the amount of brake fluid between the lines of "MAX" and "MIN"? Go to step . Replenish brake fluid to the specified value.
4 CHECK BRAKE FLUID LEVEL SWITCH. 
  1. Turn the ignition switch to OFF.
  2. Disconnect the level switch connector (B16) from master cylinder.
  3. Measure the resistance of master cylinder terminals.

    Terminals 

    No. 1 - No. 2: 

Is the resistance 1 MΩ or more? Go to step . Replace the master cylinder. Refer to MASTER CYLINDER .
5 CHECK GROUND SHORT OF HARNESS. 
  1. Disconnect the connector from the combination meter.
  2. Measure the resistance between combination meter connector and chassis ground.

    Connector & terminal 

    (i10) No. 24 - Chassis ground: 

Is the resistance 1 MΩ or more? Go to step . Repair the harness connector between combination meter and brake fluid level switch.
6 CHECK LAN SYSTEM. 
Perform the diagnosis for LAN system. Refer to OPERATION .
Is there any fault in LAN system? Perform the diagnosis according to DTC for LAN system. Refer to LIST OF DIAGNOSTIC TROUBLE CODE (DTC) . Go to step .
7 CHECK COMBINATION METER. 
Check the combination meter. Refer to SELF-DIAGNOSIS DISPLAY MODE .
Is combination meter OK? Perform the diagnosis for the parking brake system. Refer to READ DIAGNOSTIC TROUBLE CODE (DTC) . Replace the combination meter. Refer to COMBINATION METER .