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Diagnosis Procedure
1.CHECK BRAKE FLUID LEVEL
  1. Ignition switch OFF (Auto ACC function OFF).
  2. Check the brake fluid level. Refer to Inspection Inspection.
Is the inspection result normal?
.
Refill brake fluid. Refer to Bleeding Brake System. .
 
2.PERFORM SELF-DIAGNOSIS (1)
With M.U.T.-III SE
  1. Erase self-diagnosis result for "ABS".
  2. Ignition switch OFF (Auto ACC function OFF) → ON → OFF (Auto ACC function OFF).
  3. Start the engine.
    noteWait at least 10 seconds after start the engine.
  4. Perform self-diagnosis for "ABS".
Is DTC "C105D-7B" detected?
.
INSPECTION END
 
3.CHECK CONNECTOR
  1. Disconnect 12V battery negative terminal.
  2. Check the brake fluid level switch harness connector for disconnection or looseness.
  3. Check the combination meter harness connector for disconnection or looseness.
Is the inspection result normal?
.
Repair / replace harness or connector. .
 
4.PERFORM SELF-DIAGNOSIS (2)
With M.U.T.-III SE
  1. Connect 12V battery negative terminal.
  2. Start the engine.
    noteWait at least 10 seconds after start the engine.
  3. Perform self-diagnosis for "ABS".
Is DTC "C105D-7B" detected?
.
INSPECTION END
 
5.CHECK BRAKE FLUID LEVEL SWITCH
Check the brake fluids level switch. Refer to Component Inspection.
Is the inspection result normal?
.
Replace the reservoir tank. Refer to Disassembly and Assembly. .
 
6.PERFORM SELF-DIAGNOSIS (3)
With M.U.T.-III SE
  1. Erase self-diagnosis result for "ABS".
  2. Ignition switch OFF (Auto ACC function OFF) → ON → OFF (Auto ACC function OFF).
  3. Start the engine.
    noteWait at least 10 seconds after start the engine.
  4. Perform self-diagnosis for "ABS".
Is DTC "C105D-7B" detected?
.
INSPECTION END
 
7.CHECK CONNECTOR AND TERMINAL
  1. Disconnect 12V battery negative terminal.
  2. Disconnect brake fluid level switch harness connector.
  3. Check the brake fluid level switch harness connector for disconnection or looseness.
  4. Check the brake fluid level switch terminals for damage or loose connection with harness connector.
  5. Disconnect combination meter harness connector.
  6. Check the combination meter harness connector for disconnection or looseness.
  7. Check the combination meter terminals for damage or loose connection with harness connector.
Is the inspection result normal?
.
Repair / replace harness, connector, or terminal. .
 
8.PERFORM SELF-DIAGNOSIS (4)
With M.U.T.-III SE
  1. Connect brake fluid level switch harness connector.
  2. Connect combination meter harness connector.
  3. Connect 12V battery negative terminal.
  4. Erase self-diagnosis result for "ABS".
  5. Ignition switch OFF (Auto ACC function OFF) → ON → OFF (Auto ACC function OFF).
  6. Start the engine.
    noteWait at least 10 seconds after start the engine.
  7. Perform self-diagnosis for "ABS".
Is DTC "C105D-7B" detected?
.
INSPECTION END
 
9.CHECK BRAKE FLUID LEVEL SWITCH CIRCUIT
  1. Disconnect 12V battery negative terminal.
  2. Disconnect brake fluid level switch harness connector.
  3. Disconnect combination meter harness connector.
  4. Check the continuity between brake fluid level switch harness connector and combination meter harness connector.
    Brake fluid level switchCombination meterContinuity
    ConnectorTerminalConnectorTerminal
    E631M76*1
    M77*2
    		28Existed
    *1: With 7 inch information display
    *2: With full TFT meter
  5. Check the continuity between brake fluid level switch harness connector and ground.
    Brake fluid level switch—Continuity
    ConnectorTerminal
    E631GroundNot existed
Is the inspection result normal?
.
Repair / replace harness or connector. .
 
10.CHECK BRAKE FLUID LEVEL SWITCH GROUND CIRCUIT
Check the continuity between brake fluid level switch harness connector and ground.
Brake fluid level switch—Continuity
ConnectorTerminal
E632GroundExisted
Is the inspection result normal?
.
Repair / replace harness or connector. .
 
11.CHECK COMBINATION METER
  1. Connect brake fluid level switch harness connector.
  2. Connect combination meter harness connector.
  3. Connect 12V battery negative terminal.
  4. Check the combination meter.
Is the inspection result normal?
Replace the ABS actuator and electric unit (control unit). Refer to Removal and Installation.
Repair or replace combination meter.