Inspection Procedure

NOTE:

When replacing the skid control ECU, perform initialization of linear solenoid valve calibration (see INITIALIZATION ).
If the hybrid control ECU has been replaced, it is necessary to register the ECU (see REGISTRATION ).

INSPECT DLC3 (TC AND CG TERMINAL)

Turn the power switch ON (IG).

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

Standard voltage

TESTER CONNECTION SPECIFIED CONDITION

Tester Connection	Condition	Specified Condition
K16-13(TC) - Body ground	Power switch ON (IG)	10 to 14 V

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

Standard resistance

TESTER CONNECTION SPECIFIED CONDITION

Tester Connection	Specified Condition
K16-4 (CG) - Body ground	Below 1 Ω

Fig 1: Identifying K16 Connector Terminals

Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

NG: GO TO step 3

OK: GO TO Next Step

CHECK CAN COMMUNICATION SYSTEM

Check if the CAN communication DTC is output (see DIAGNOSIS SYSTEM ).

Result

RESULT

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

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.

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

A: GO TO Next Step

CHECK WIRE HARNESS (DLC3 - HYBRID CONTROL ECU)

Disconnect the A54 ECU connector.

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

Standard resistance

TESTER CONNECTION SPECIFIED CONDITION

Tester Connection	Specified Condition
K16-13 (TC) - A54-63 (TC)	Below 1 Ω

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

Standard resistance

TESTER CONNECTION SPECIFIED CONDITION

Tester Connection	Specified Condition
K16-13 (TC) - Body ground	10 kΩ or higher

Fig 2: Identifying K16 And A54 Connectors Terminals

Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

NG: REPAIR OR REPLACE HARNESS OR CONNECTOR

OK: GO TO Next Step

CHECK WIRE HARNESS (DLC3 - BODY GROUND)

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

Standard resistance

TESTER CONNECTION SPECIFIED CONDITION

Tester Connection	Specified Condition
K16-4 (CG) - Body ground	Below 1 Ω

Fig 3: Identifying K16 Connector Terminals

Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

NG: REPAIR OR REPLACE HARNESS OR CONNECTOR

OK: GO TO Next Step

CHECK HYBRID CONTROL ECU (DLC3 INPUT)

Using SST, connect terminals TC and CG of the DLC3.
SST 09843-18040

Check if the ABS warning light is blinking.

Result

RESULT

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

Fig 4: Identifying K16 Connector Terminals

B: REPLACE HYBRID VEHICLE CONTROL ECU (See HYBRID VEHICLE CONTROL ECU )

A: GO TO Next Step

CHECK CAN COMMUNICATION SYSTEM

Check if the CAN communication DTC is output (see DIAGNOSIS SYSTEM ).

Result

RESULT

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

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.

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

A: REPLACE SKID CONTROL ECU (See REMOVAL )