Inspection Procedure

HINT:

The brake hold standby indicator light comes on when the system is malfunction.

1. PRE-CHECK 
   1. If the brake hold standby indicator light does not illuminate even though the brake hold switch is pushed, check that the brake hold function operation conditions are met.
      1. The driver's door is closed.
      2. Driver's seat belt is fastened.
      3. The engine hood is closed.
      4. The trunk is closed.
      5. The system is normal.

         HINT:

         If a malfunction occurs in one of the following systems, the brake hold standby indicator light will blink. If this occurs, perform troubleshooting on the malfunctioning system (see DIAGNOSTIC TROUBLE CODE CHART  ).

         • Electronically Controlled Brake system
         • ABS system
         • VSC system
         • Electric parking brake system
         • SFI system
2. INSPECT CAN COMMUNICATION SYSTEM 
   1. Check if the CAN communication system DTC is output (see DIAGNOSTIC TROUBLE CODE CHART ).

      Result 

      RESULT REFERENCE
      
      

      Result	Proceed to
      DTC is not output	A
      DTC is output	B

   B: GO TO CAN COMMUNICATION SYSTEM  (See HOW TO PROCEED WITH TROUBLESHOOTING )

   A: GO TO NEXT STEP 

3. PERFORM ACTIVE TEST BY INTELLIGENT TESTER OR TECHSTREAM (BRAKE HOLD OPERATED INDICATOR LIGHT) 
   1. Connect the intelligent tester or Techstream to the DLC3.
   2. Turn the engine switch on (IG).
   3. Select the ACTIVE TEST mode on the intelligent tester or Techstream.
      1. Intelligent tester

         Meter ECU: 

         METER ECU
         
         

         Tester Display	Test Part	Control Range	Diagnostic Note
         HOLD INDIC	Brake hold indicator light	ON / OFF	Observe combination meter

      2. Techstream

         Meter ECU: 

         METER ECU
         
         

         Tester Display	Test Part	Control Range	Diagnostic Note
         Indicat. Hold	Brake hold indicator light	ON / OFF	Observe combination meter

   4. Check that the brake hold operated indicator light turns on or off when using the intelligent tester or Techstream.

      OK: The brake hold operated indicator light turns on or off in accordance with the intelligent tester or Techstream. 

      HINT:

      If troubleshooting has been carried out according to the PROBLEM SYMPTOMS TABLE, refer back to the table and proceed to the next step before replacing the part (see PROBLEM SYMPTOMS TABLE  ).

   NG: GO TO METER AND GAUGE SYSTEM  (See HOW TO PROCEED WITH TROUBLESHOOTING )

   OK: GO TO NEXT STEP 

4. PERFORM ACTIVE TEST BY INTELLIGENT TESTER OR TECHSTREAM (BRAKE HOLD STANDBY INDICATOR LIGHT) 
   1. Connect the intelligent tester or Techstream to the DLC3.
   2. Turn the engine switch on (IG).
   3. Select the ACTIVE TEST mode on the intelligent tester or Techstream.
      1. Intelligent tester

         Skid control ECU: 

         SKID CONTROL ECU
         
         

         Tester Display	Test Part	Control Range	Diagnostic Note
         BH OPERATED LIGHT	Brake hold standby indicator light	ON / OFF	Observe combination meter

      2. Techstream

         Skid control ECU: 

         SKID CONTROL ECU
         
         

         Tester Display	Test Part	Control Range	Diagnostic Note
         BH Operated Light	Brake hold standby indicator light	ON / OFF	Observe combination meter

   4. Check that the brake hold standby indicator light turns on or off on the intelligent tester or Techstream.

      OK: The brake hold standby indicator light turns on or off in accordance with the intelligent tester or Techstream. 

   NG: REPLACE SKID CONTROL ECU (See  REMOVAL   ) 

   OK: GO TO NEXT STEP 

5. READ VALUE OF INTELLIGENT TESTER OR TECHSTREAM (STEERING PAD SWITCH) 
   1. Connect the intelligent tester or Techstream to the DLC3.
   2. Turn the engine switch on (IG).
   3. Select the DATA LIST mode on the intelligent tester or Techstream.
      1. Intelligent tester

         Steering Pad Switch: 

         STEERING PAD SWITCH
         
         

         Tester Display	Measurement Item/ Range	Normal Condition	Diagnostic Note
         BRAKE OPERATED SW	Brake hold switch / ON or OFF	ON: Brake hold switch ON OFF: Brake hold switch OFF	-

      2. Techstream

         Steering Pad Switch: 

         STEERING PAD SWITCH
         
         

         Tester Display	Measurement Item/ Range	Normal Condition	Diagnostic Note
         Brake Operated Switch	Brake hold switch / ON or OFF	ON: Brake hold switch ON OFF: Brake hold switch OFF	-

   4. Check that the brake hold switch turns on or off on the intelligent tester on Techstream.

      OK: The brake hold switch is operated, and the display changes as shown above. 

   NG: REPLACE STEERING PAD SWITCH 

   OK: REPLACE SKID CONTROL ECU (See  REMOVAL   )