Inspection Procedure

NOTE: When replacing the master cylinder solenoid, perform zero point calibration (See CALIBRATION ).

INSPECT DLC3 (DLC3 (TC) - DLC3 (CG))

Turn the ignition switch to the ON position.

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

Standard voltage

TESTER CONNECTION SPECIFIED CONDITION CHART

Tester Connection	Condition	Specified Condition
D3-13 (TC) - D3-4 (CG)	Ignition switch ON	10 to 14 V

NG: Go to step 3

Fig 1: Identifying DLC3 Connector Terminals

Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

OK: Go to next step

CHECK DTC (FOR CAN COMMUNICATION SYSTEM)

Check for CAN communication system DTC (See DIAGNOSIS SYSTEM ).

Result

RESULT CHART

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

B: REPAIR CAN COMMUNICATION SYSTEM

A: REPLACE MASTER CYLINDER SOLENOID

CHECK HARNESS AND CONNECTOR (ECM - DLC3 (TC))

Turn the ignition switch off.
Disconnect the ECM connector.

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

Standard resistance

TESTER CONNECTION SPECIFIED CONDITION CHART

Tester Connection	Specified Condition
E9-23 (TC) - D3-13 (TC)	Below 1 Ω

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

Fig 2: Checking Harness And Connector (ECM - DLC3 (TC))

Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

OK: Go to next step

CHECK HARNESS AND CONNECTOR (DLC3 (CG) - BODY GROUND)

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

Standard resistance

TESTER CONNECTION SPECIFIED CONDITION CHART

Tester Connection	Specified Condition
D3-4 (CG) - Body ground	Below 1 Ω

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

Fig 3: Identifying DLC3 Connector Terminals

Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

OK: Go to next step

CHECK ECM (DLC3 (TC) INPUT)

Using SST, connect terminals TC and CG of the DLC3.

Check that the engine warning light is blinking.

Fig 4: Identifying DLC3 Connector Terminals

Result

RESULT CHART

Condition	Proceed to
Engine warning light is blinking	A
Engine warning light is not blinking	B

B: REPAIR OR REPLACE WIRE HARNESS OR ECM (TC AND/OR ECM CIRCUIT)

A: Go to next step

CHECK DTC (FOR CAN COMMUNICATION SYSTEM)

Check for CAN communication system DTC (See DIAGNOSIS SYSTEM ).

Result

RESULT CHART

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

B: REPAIR CAN COMMUNICATION SYSTEM

A: REPLACE MASTER CYLINDER SOLENOID