Inspection Procedure

WHEN USING HAND-HELD TESTER: 

1. Connect the hand-held tester to the DLC3 and start the engine.
2. Select the item "ABS WARN LIGHT" in the ACTIVE TEST and operate the ABS warning light on the hand-held tester.
   CONDITION / TEST CHART
   
   

   Item	Vehicle	Condition / Test Details	Diagnostic Note
   ABS WARN LIGHT	Turns ABS warning	light ON / OFF	Observe combination meter

3. Check that "ON" and "OFF" of the ABS warning light can be shown on the combination meter by the hand-held tester.

   OK: Turn the ABS warning light ON or OFF in accordance with the hand-held tester. 

WHEN NOT USING HAND-HELD TESTER: 

1. Turn the ignition switch off and disconnect the connector from the skid control ECU.
2. Ground terminal WA of the skid control ECU.
3. Turn the ignition switch to the ON position.
4. Check that the ABS warning light.

   OK: Turn the light ON or OFF in accordance with the connecting condition of terminal WA and body ground. 

   Fig 1: Inspecting ABS Warning Light

   Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

1. NG: CHECK AND REPAIR ABS WARNING LIGHT CIRCUIT 
2. OK: GO TO NEXT STEP. 

1. Disconnect the skid control ECU connector and combination meter connector.
2. Measure the resistance according to the value (s) in the table below.

   Standard: 

   SPECIFICATION TESTER CONNECTION
   
   

   Tester Connection	Specified Condition
   C11-17 - S27-29 (WA)	Below 1 Ω

3. Measure the resistance according to the value (s) in the table below.

   Standard: 

   SPECIFICATION TESTER CONNECTION
   
   

   Tester Connection	Specified Condition
   S27-29 (WA) - Body ground	10 kΩ or higher

   Fig 2: Checking Harness And Connector (Skid Control ECU - Combination Meter)

   Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

1. NG: REPAIR OR REPLACE HARNESS OR CONNECTOR 
2. OK: REPLACE ABS & TRACTION ACTUATOR ASSY (See  REPLACEMENT  )