Inspection Procedure

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

   Result 

   RESULT CHART
   
   

   Condition	Proceed to
   DTC is not output	A
   DTC is output	B

B: REPAIR CIRCUIT INDICATED BY OUTPUT DTC  (See DIAGNOSTIC TROUBLE CODE CHART  )

A: Go to next step 

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

   OK: The connector is securely connected. 

NG: CONNECT CONNECTOR TO ECU CORRECTLY 

OK: Go to next step 

1. Check the battery voltage.

   Standard voltage: 

   11 to 14 V 

NG: INSPECT CHARGING SYSTEM 

OK: Go to next step 

1. Disconnect the skid control ECU connector.
2. Turn the ignition switch to the ON position.
3. Measure the voltage according to the value(s) in the table below.

   Standard voltage 

   TESTER CONNECTION SPECIFIED CONDITION CHART
   
   

   Tester Connection	Condition	Specified Condition
   S37-27 (EXI) - Body ground	Center diff. free (Center diff. lock switch OFF)	10 to 14 V

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

Fig 1: Identifying S37 Skid Control ECU Connector

Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

OK: Go to next step 

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

   Standard resistance 

   TESTER CONNECTION SPECIFIED CONDITION CHART
   
   

   Tester Connection	Specified Condition
   S37-35 (WT) - C10-18	Below 1 Ω
   S37-35 (WT) - Body ground	10 kΩ or higher

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

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

Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

OK: Go to next step 

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

NG: REPLACE COMBINATION METER ASSEMBLY 

OK: REPLACE MASTER CYLINDER SOLENOID