Inspection Procedure

WHEN USING HAND-HELD TESTER: 

1. Connect the hand-held tester to the DLC3 and start the engine.
2. Select the "ABS WARN LIGHT" in the ACTIVE TEST and operate the ABS warning light on the hand-held tester.
   ABS WARNING LIGHT (USING HAND-HELD TESTER)
   
   

   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 are shown on the combination meter with the hand-held tester.

OK: 

The ABS warning light is turned 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. Turn the ignition switch to the ON position.
3. Check that the ABS warning light comes on.
Fig 1: View Of Skid Control ECU Connector Terminals
Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

OK: 

ABS warning light comes on. 

OK: REPLACE BRAKE ACTUATOR ASSY (See step 3 in  REPLACEMENT  ) 

NG: Go to next step 

1. Disconnect the combination meter connector C8 and the skid control ECU connector S1.
2. Measure the resistance according to the value(s) in SKID CONTROL ECU - COMBINATION METER (1 OF 2)  .

   Standard: 

   SKID CONTROL ECU - COMBINATION METER (1 OF 2)
   
   

   Tester Connection	Specified Condition
   S1-29 (WA) - C8-4	Below 1

3. Measure the resistance according to the value(s) in SKID CONTROL ECU - COMBINATION METER (2 OF 2)  .

Standard: 

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

Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

NG: REPAIR OR REPLACE HARNESS AND CONNECTOR 

OK: REPAIR OR REPLACE COMBINATION METER ASSY (See step 11 in  REPLACEMENT  )