ELECTRONICALLY CONTROLLED BRAKE SYSTEM ABS Warning Light does not Come ON

DESCRIPTION

The skid control ECU assembly is connected to the combination meter assembly via CAN communication.

CAUTION / NOTICE / HINT

PROCEDURE

1. Click here

   CHECK CAN COMMUNICATION SYSTEM

   
   

   1. Check if CAN communication system DTCs are output.

      Click here

      Result
      Result Proceed to DTCs are not output. A DTCs are output. B

   
   
   • AClick here
   • B

     INSPECT CAN COMMUNICATION SYSTEMClick here

2. Click here

   PERFORM ACTIVE TEST USING GTS (ABS WARNING LIGHT)

   
   

   1. Connect the GTS to the DLC3.

   2. Turn the power switch on (IG).

   3. Select the Active Test on the GTS.

      Click here

      
      
      1. Chassis > ABS/VSC/TRC > Active Test

         Tester Display	Measurement Item	Control Range	Diagnostic Note
         ABS Warning Light	ABS warning light	Warning light ON/OFF	Observe combination meter assembly

      2. 
         
         10. 
             
      
      
      1. Chassis > ABS/VSC/TRC > Active Test

         Tester Display
         ABS Warning Light

      2. 
         
         1. 
            
      3. 
         
         11. 
             

   4. Select the Data List on the GTS.

      Click here

      
      
      1. Chassis > ABS/VSC/TRC > Data List

         Tester Display	Measurement Item	Range	Normal Condition	Diagnostic Note
         ABS Warning Light	ABS warning light	ON or OFF	ON: Warning light on OFF: Warning light off	-

      2. 
         
         10. 
             
      
      
      1. Chassis > ABS/VSC/TRC > Data List

         Tester Display
         ABS Warning Light

      2. 
         
         1. 
            
      3. 
         
         10. 
             

   5. Check the operating condition of the ABS warning light when operating it using the GTS.

      Result
      Result Proceed to ABS warning light in the Data List does not change using the Active Test. A ABS warning light in the Data List turns ON/OFF using the Active Test. B

   
   
   • A

     REPLACE SKID CONTROL ECU ASSEMBLY for LHD:Click here

     REPLACE SKID CONTROL ECU ASSEMBLY for RHD:Click here

   • BClick here
3. Click here

   INSPECT COMBINATION METER ASSEMBLY

   
   

   1. Turn the power switch off.

   2. Perform the Active Test of the combination meter assembly (meter CPU) using the GTS.

      Click here

      
      
      1. Body Electrical > Combination Meter > Active Test

         Tester Display
         ABS Warning

      2. 
         
         1. 
            
      3. 
         
         11. 
             

   3. Check the combination meter assembly.

      OK
      The ABS warning light turns on or off in accordance with GTS operation.

      Result
      Proceed to OK NG

   
   
   • OK

     REPLACE SKID CONTROL ECU ASSEMBLY for LHD:Click here

     REPLACE SKID CONTROL ECU ASSEMBLY for RHD:Click here

   • NG

     INSPECT METER / GAUGE SYSTEMClick here