Inspection Procedure

HINT:

Start the inspection from step 1 when using the intelligent tester and start from step 2 when not using the intelligent tester.

1. PERFORM ACTIVE TEST BY INTELLIGENT TESTER (SLIP INDICATOR LIGHT) 
   1. Connect the intelligent tester to the DLC3.
   2. Start the engine.
   3. Select the item "SLIP INDI LIGHT" in the ACTIVE TEST and operate the SLIP indicator light on the intelligent tester.
      ACTIVE TEST REFERENCE CHART
      
      

      Item	Vehicle Condition / Test Details	Diagnostic Note
      SLIP INDI LIGHT	Turns SLIP indicator light ON / OFF	Observe combination meter

   4. Check that "ON" and "OFF" of the SLIP indicator light are indicated on the combination meter when using the intelligent tester.

      OK: 

      Turn the SLIP indicator light on or off in accordance with the intelligent tester. 

      NOTE: When replacing the ABS & TRACTION actuator assembly, perform zero point calibration (See DIAGNOSTIC TROUBLE CODE CHART  ).

   NG: Go to step 2 

   OK: REPLACE ABS AND TRACTION ACTUATOR 

2. CHECK HARNESS AND CONNECTOR 
   1. Disconnect the skid control ECU connector S1 and ECM connector E5.
   2. Measure the resistance according to the value(s) in the table below.

      Resistance 

      TESTER CONNECTION AND SPECIFIED CONDITION
      
      

      Tester Connection	Specified Condition
      S1-8 (TRC+) - E5-25 (TRC+)	Below 1 Ω
      S1-22 (TRC-) - E5-31 (TRC-)	Below 1 Ω
      S1-9 (ENG+) - E5-24 (ENG+)	Below 1 Ω
      S1-23 (ENG-) - E5-25 (ENG-)	Below 1 Ω

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

   Resistance 

   TESTER CONNECTION AND SPECIFIED CONDITION
   
   

   Tester Connection	Specified Condition
   S1-8 (TRC+) - Body ground	10 kΩ or higher
   S1-22 (TRC-) - Body ground	10 kΩ or higher
   S1-9 (ENG+) - Body ground	10 kΩ or higher
   S1-23 (ENG-) - Body ground	10 kΩ or higher

   Fig 1: Disconnecting Skid Control ECU Connector S1 And ECM Connector E5

   Courtesy of TOYOTA MOTOR SALES, U.S.A., INC.

   NG: REPAIR OR REPLACE HARNESS OR CONNECTOR 

   OK: Go to next step 

3. INSPECT COMBINATION METER ASSEMBLY 
   1. Check if the indicators (fuel, turn signal) other than SLIP indicator operate normally.

   Result 

   RESULT REFERENCE CHART
   
   

   Result	Proceed to
   Indicators OK	A
   Indicators NG	B

   B: CHECK COMBINATION METER ASSEMBLY (COMBINATION METER POWER SOURCE CIRCUIT) 

   A: REPAIR OR REPLACE COMBINATION METER ASSEMBLY