Inspection Procedure

1. Check the battery voltage.

   Standard voltage: 

   11 to 14 V 

NG: INSPECT CHARGING SYSTEM 

OK: Go To Next Step 

1. Remove the IGN fuse from the driver side junction block.
2. Check the IGN fuse.

   Standard resistance: 

   Below 1 Ω 

NG: REPLACE IGN FUSE 

OK: Go To Next Step 

1. Install the IGN fuse.
2. Disconnect the skid control ECU (S29) connector.
3. Turn the ignition switch to the ON position.
4. Measure the voltage according to the value(s) in the table below.

   Standard voltage 

   TESTER CONNECTION AND SPECIFIED CONDITION TABLE
   
   

   Tester Connection	Condition	Specified Condition
   S29-1 (IG2) - Body ground	Always	10 to 14 V

   Fig 1: Identifying Skid Control ECU (IG2 Terminal)

   Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

NG: REPAIR OR REPLACE HARNESS OR CONNECTOR (IG2 CIRCUIT) 

OK: Go To Next Step 

1. Disconnect the skid control ECU connectors.
2. Measure the resistance according to the value(s) in the table below.

   Standard resistance 

   TESTER CONNECTION AND SPECIFIED CONDITION TABLE
   
   

   Tester Connection	Condition	Specified Condition
   S28-1 (GND1) - Body ground	Always	Below 1 Ω
   S28-32 (GND2) - Body ground	Always	Below 1 Ω
   S29-4 (GND3) - Body ground	Always	Below 1 Ω

   Fig 2: Identifying Skid Control ECU Connector (GND Terminal)

   Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

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

OK: Go To Next Step 

1. Clear the DTC (See DTC CHECK/CLEAR  ).
2. Check if the same DTC is detected (See DTC CHECK/CLEAR  ).

   HINT:

   Reinstall the sensors, connectors, etc. and restore the previous vehicle conditions before rechecking for DTCs.

   Result 

   RESULT REFERENCE TABLE
   
   

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

B: CHECK FOR INTERMITTENT PROBLEMS (See  CHECK FOR INTERMITTENT PROBLEMS   ) 

A: REPLACE MASTER CYLINDER SOLENOID