Inspection Procedure

1. Check the DTCs (See DTC CHECK/CLEAR  ).

   Result: 

   RESULT REFERENCE
   
   

   DTC is not output	A
   DTC is output	B

B: REPAIR CIRCUIT ACCORDING TO OUTPUT CODE (See  DIAGNOSTIC TROUBLE CODE TABLE   ) 

A: Go to next step 

1. Check the skid control ECU connector's connecting condition.

   OK: The connector should be securely connected. 

NG: CONNECT CONNECTOR TO ECU 

OK: Go to next step 

1. Check the battery voltage.

   Standard: Voltage: 11 to 14 V 

NG: INSPECT CHARGING SYSTEM (See  ON-VEHICLE INSPECTION  ,  ON-VEHICLE INSPECTION  ) 

OK: Go to next step 

1. Transfer is in 4WD mode (Multi Mode 4WD only).
2. Disconnect the skid control ECU connector.
3. Turn the ignition switch to the ON position.
4. Measure the voltage according to the value(s) in TERMINALS VOLTAGE SPECIFICATION TABLE .

   Standard: 

   TERMINALS VOLTAGE SPECIFICATION TABLE
   
   

   Tester Connection	Condition	Specified Condition
   S28-27 (EXI) - Body ground	Center diff. free	10 to 14 V

   Fig 1: Identifying Skid Control ECU Connector Terminals

   Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

NG: REPAIR OR REPLACE HARNESS OR CONNECTOR (EXI CIRCUIT) 

OK: Go to next step 

1. Disconnect the combination meter connector.
2. Measure the resistance according to the value(s) in TERMINALS RESISTANCE SPECIFICATION TABLE .

   Standard: 

   TERMINALS RESISTANCE SPECIFICATION TABLE
   
   

   Tester Connection	Specified Condition
   S28-35 (WT) - C10-17	Below 1
   S28-35 (WT) - Body ground	10 k or higher

   Fig 2: Identifying Skid Control ECU Connector & Combination Meter Connector

   Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

NG: REPAIR OR REPLACE HARNESS OR CONNECTOR 

OK: Go to next step 

1. Check the combination meter system (See HOW TO PROCEED WITH TROUBLESHOOTING ).

NG: REPLACE COMBINATION METER ASSY (See  COMBINATION METER ASSY  ) 

OK: REPLACE MASTER CYLINDER SOLENOID (See  OVERHAUL  )