Inspection Procedure

1. Check if a CAN communication system DTC is output (See DTC CHECK / CLEAR  ).

   Result 

   DTC RESULT REFERENCE
   
   

   Result	Proceed to
   CAN communication system DTC is not output	A
   CAN communication system DTC is output	B

B: INSPECT CAN COMMUNICATION SYSTEM  (See HOW TO PROCEED WITH TROUBLESHOOTING )

A: Go to next step 

1. Check if a multiplex communication system DTC is output (See DTC CHECK/CLEAR ).

   Result 

   DTC RESULT REFERENCE
   
   

   Result	Proceed to
   Multiplex communication system DTC is not output	A
   Multiplex communication system DTC is output	B

B: INSPECT MULTIPLEX COMMUNICATION SYSTEM  (See DTC CHECK/CLEAR )

A: Go to next step 

1. Check the battery voltage.

   Standard voltage: 

   11 to 14 V 

NG: CHECK OR REPLACE CHARGING SYSTEM OR BATTERY  (See ON-VEHICLE INSPECTION )

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 

   VOLTAGE SPECIFICATION
   
   

   Tester Connection	Switch Condition	Specified Condition
   S1-46 (IG1) - Body ground	Ignition switch ON	10 to 14 V

Fig 1: Identifying Skid Control ECU (IG1 Terminal)
Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

NG: REPAIR OR REPLACE HARNESS OR CONNECTOR (IG1 CIRCUIT) 

OK: Go to next step 

1. Turn the ignition switch off.
2. Measure the resistance according to the value(s) in the table below.

   Standard resistance 

   RESISTANCE REFERENCE
   
   

   Tester Connection	Condition	Specified Condition
   S1-32 (GND1) - Body ground	Always	Below 1 Ω
   S1-1 (GND2) - Body ground	Always	Below 1 Ω

3. Connect the connector.
Fig 2: Identifying Skid Control ECU Connector Terminal
Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

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

OK: Go to next step 

1. Connect the intelligent tester to the DLC3.
2. Perform Active Test of the combination meter (meter CPU) using the intelligent tester (See DATA LIST / ACTIVE TEST ).

   OK: 

   The SLIP indicator light blinks or turns off in accordance with the intelligent tester. 

   HINT:

   If troubleshooting has been carried out according to the Problem Symptoms Table, refer back to the table and proceed to the next step before replacing the part (See PROBLEM SYMPTOMS TABLE  ).

NG: REPLACE COMBINATION METER ASSEMBLY  (See REMOVAL )

OK: REPLACE BRAKE ACTUATOR ASSEMBLY (See  REMOVAL   )