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

STANDARD VOLTAGE SPECIFICATION

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

Fig 1: Identifying Terminal CG And TC Of DLC3

Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

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

Standard resistance

STANDARD RESISTANCE SPECIFICATION

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

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 REFERENCE

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 (see PROBLEM SYMPTOMS TABLE ).

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

STANDARD RESISTANCE SPECIFICATION

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

STANDARD RESISTANCE SPECIFICATION

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

Fig 2: Identifying K16 DLC3 And A54 Hybrid Control ECU Connector

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

STANDARD RESISTANCE SPECIFICATION

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

Fig 3: Identifying Terminal CG Of K16 DLC3

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 REFERENCE

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

Fig 4: Identifying Terminal CG And TC Of K16 DLC3

B: REPLACE HYBRID VEHICLE CONTROL ECU (See REMOVAL )

A: Go to next step

CHECK CAN COMMUNICATION SYSTEM

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

Result

RESULT REFERENCE

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 (see PROBLEM SYMPTOMS TABLE ).

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

A: REPLACE SKID CONTROL ECU (See REMOVAL )