Inspection Procedure

CHECK DLC3

Fig 1: Identifying DLC3 Connector Terminals (CANL And CANH)

Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

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

Result:

TERMINALS RESISTANCE SPECIFIED VALUE

Tester connection	Condition	Specified value	Result
D1-6 (CANH) - D1-14 (CANL)	IG switch OFF	108 to 132 Ω	A
D1-6 (CANH) - D1-14 (CANL)	IG switch OFF	132 Ω or higher	B

NOTE: When the measured value is 132 Ω or more and the CAN communication system diagnostic code is output, there may be a fault besides disconnection of the DLC3 sub bus line. For that reason, troubleshooting should be performed again from "How to proceed with troubleshooting" after repairing the trouble area.

B: REPAIR OR REPLACE DLC3 SUB BUS LINE OR CONNECTOR (CAN-H, CAN-L)

A: GO TO NEXT STEP

READ OUTPUT DTC

Read the output diagnostic codes.

Standard:

OUTPUT DIAGNOSTIC CODES

U0121/94, U0123/62, U0124/95 and U0126/63 are output simultaneously.	A
Only U0126/63 is output.	B

NOTE: Diagnostic codes other than the CAN communication system diagnostic codes (U0121/94, U0123/62, U0124/95, U0126/63) may be output simultaneously with the CAN codes.

B: Go to step 4
A: GO TO NEXT STEP

CHECK CAN MAIN BUS LINE FOR DISCONNECTION (SKID CONTROL ECU - JUNCTION CONNECTOR)

Fig 2: Identifying Skid Control ECU Connector Terminals (CANH And CANL)

Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

Disconnect the connector (S3) from the skid control ECU.
Measure the resistance according to the value(s) in the table below.

Standard:

TERMINALS RESISTANCE SPECIFIED VALUE

Tester connection	Condition	Specified value
S3-11 (CANH) - S3-25 (CANL)	IG switch OFF	108 to 132 Ω

NG: REPAIR OR REPLACE CAN MAIN BUS LINE OR CONNECTOR (SKID CONTROL ECU - JUNCTION CONNECTOR)
OK: REPLACE SKID CONTROL ECU WITH ACTUATOR (SEE REPLACEMENT )

CHECK CAN MAIN BUS LINE FOR DISCONNECTION (STEERING SENSOR - JUNCTION CONNECTOR)

Fig 3: Identifying Steering Sensor Connector Terminals Wire Harness View

Disconnect the connector (S7) from the steering sensor.
Measure the resistance according to the value(s) in the table below.

Standard:

TERMINALS RESISTANCE SPECIFIED VALUE

Tester connection	Condition	Specified value
S7-10 (CANH) - S7-9 (CANL)	IG switch OFF	108 to 132 Ω

NG: REPAIR OR REPLACE CAN MAIN BUS LINE OR CONNECTOR (STEERING SENSOR - JUNCTION CONNECTOR)
OK: REPLACE STEERING SENSOR (SEE REPLACEMENT )