Inspection Procedure

1. Turn the engine switch on (IG).
2. Measure the voltage according to the value(s) in the table below.

   Standard Voltage 

   STANDARD VOLTAGE SPECIFICATION
   
   

   Tester Connection	Switch Condition	Specified Condition
   E22-13 (TC) - E22-4 (CG)	Engine switch on (IG)	11 to 14 V

NG:  Go to step  4

Fig 1: Identifying DLC3 Connector

Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

OK: Go to Next Step 

1. Turn the engine switch off.
2. Connect the Techstream to the DLC3.
3. Turn the engine switch on (IG) and the Techstream on.
4. Select "CAN Bus Check" from the System Selection Menu screen, and follow the prompts on the screen to inspect the CAN Bus.

   OK: "CAN Bus Check" indicates no malfunctions in CAN communication. 

NG: GO TO CAN COMMUNICATION SYSTEM (HOW TO PROCEED WITH TROUBLESHOOTING)  (See HOW TO PROCEED WITH TROUBLESHOOTING )

OK: Go to Next Step 

1. Turn the engine switch off.
2. Connect the Techstream to the DLC3.
3. Turn the engine switch on (IG) and the Techstream on.
4. Check for DTCs (See HOW TO PROCEED WITH TROUBLESHOOTING ).

   Result 

   RESULT REFERENCE
   
   

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

B: GO TO CAN COMMUNICATION SYSTEM (DIAGNOSTIC TROUBLE CODE CHART)  (See DIAGNOSTIC TROUBLE CODE CHART )

A: Go to Next Step 

1. Turn the engine switch off.
2. Disconnect the A38 ECM connector.
3. Measure the resistance according to the value(s) in the table below.

   Standard Resistance 

   STANDARD RESISTANCE SPECIFICATION
   
   

   Tester Connection	Condition	Specified Condition
   A38-16 (TC) - E22-13 (TC)	Always	Below 1 Ω

NG: REPAIR OR REPLACE HARNESS OR CONNECTOR 

Fig 2: Identifying A38 ECM And Dlc3 Connectors

Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

OK: Go to Next Step 

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

   Standard Resistance 

   STANDARD RESISTANCE SPECIFICATION
   
   

   Tester Connection	Condition	Specified Condition
   E22-4 (CG) - Body ground	Always	Below 1 Ω

NG: REPAIR OR REPLACE HARNESS OR CONNECTOR 

Fig 3: Identifying DLC3 Connector

Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

OK: Go to Next Step 

1. Using SST, connect terminals TC and CG of the DLC3.
2. Check that the malfunction indicator lamp is blinking.

   Result 

   RESULT REFERENCE
   
   

   Result	Proceed to
   MIL is blinking	A
   MIL is not blinking	B

B: REPAIR OR REPLACE WIRE HARNESS OR ECM 

Fig 4: Identifying DLC3 Connector

Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

A: Go to Next Step 

1. Turn the engine switch off.
2. Connect the Techstream to the DLC3.
3. Turn the engine switch on (IG) and the Techstream on.
4. Check for DTCs (See HOW TO PROCEED WITH TROUBLESHOOTING ).

   Result 

   RESULT REFERENCE
   
   

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

B: GO TO CAN COMMUNICATION SYSTEM (DIAGNOSTIC TROUBLE CODE CHART)  (See DIAGNOSTIC TROUBLE CODE CHART )

A: REPLACE MASTER CYLINDER SOLENOID  (See DISASSEMBLY )