Inspection Procedure

HINT:

When replacing the master cylinder solenoid, perform zero point calibration.

1. PERFORM ACTIVE TEST USING TECHSTREAM 
   1. Connect the Techstream to the DLC3.
   2. Turn the ignition switch to ON.
   3. Turn the tester on.
   4. Select the "Brake Warning Light" in the Active Test and operate the BRAKE warning light using the Techstream. Select the following menu items: Chassis / ABS/VSC/ TRAC/ Active Test

      ACTIVE TEST: ABS/VSC/TRAC 

      ABS/VSC/TRAC ACTIVE TEST REFERENCE
      
      

      Tester Display	Test Part	Control Range	Diagnostic Note
      Brake Warning Light	BRAKE warning light	BRAKE warning light ON or OFF	Observe combination meter

   5. Check that the BRAKE warning light turns on and off in the combination meter using the Techstream.

      OK: 

      The BRAKE warning light turns ON and OFF in accordance with the Techstream operation. 

   NG: Go to step 2 

   OK: REPLACE MASTER CYLINDER SOLENOID  (See DISASSEMBLY )

2. CHECK HARNESS AND CONNECTOR (SKID CONTROL ECU - COMBINATION METER) 
   1. Disconnect the skid control ECU connector.
   Fig 1: Identifying Skid Control ECU Connector And Combination Meter Connector
   Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
   2. Disconnect the combination meter connector.
   3. Measure the resistance.

      Standard resistance 

      RESISTANCE SPECIFICATION
      
      

      Tester Connection	Specified Condition
      A5-3 (BRL) - E13-31 (PKB)	Below 1 Ω
      A5-3 (BRL) - Body ground	10 kΩ or higher

   NG: REPAIR OR REPLACE HARNESS OR CONNECTOR 

   OK: Go to next step 

3. INSPECT COMBINATION METER ASSEMBLY 
   1. Check the combination meter system (See TERMINALS OF ECU ).

      OK: 

      Combination meter is normal. 

   NG: REPLACE COMBINATION METER ASSEMBLY  (See REMOVAL )

   OK: REPLACE MASTER CYLINDER SOLENOID  (See DISASSEMBLY )